Nursing Research Test Questions – Flashcards

Unlock all answers in this set

Unlock answers
question
Nursing research is a scientific process that
answer
Validates existing knowledge, refines existing knowledge, and generates new knowledge
question
Evidence-Based practice in nursing should be based
answer
On the synthesis of findings from a collection of research studies addressing nursing practice
question
Which of the following is a synonym for the concept of research
answer
Systematic inquiry
question
What are the three abstract thought process that are important to nursing
answer
Institution, role modeling, and reasoning
question
What is the role of institution in the research process
answer
Institution may be valuable in linking ideas while interpreting findings
question
What type of reasoning is represented in the following example? Premises
answer
Patients with untreated right-sided heart failure experience shortness of breath. Mr. Jones experiences shortness of breath.: Deductive reasoning
question
Which type of reasoning moves from the specific to the general
answer
Inductive reasoning
question
The following set of statements is an example of what type of reasoning? An altered level of comfort is experienced with facial surgery. Therefore, all surgeries result in an altered level of comfort
answer
Inductive reasoning
question
Research is conducted for which of the following reasons?
answer
To test theory, to develop new knowledge, and to generate theory
question
What is the most significant way of acquiring knowledge to develop an empirical knowledge base for nursing practice?
answer
Research
question
Who is identified as the first nursing research?
answer
Florence Nightingale
question
For nursing as a discipline to be effective in research, which of the following should be the focus of research-directed activity?
answer
Creating a culture within nursing that value, uses, and supports research
question
Which of the following research methodologies is (are) being used to generate nursing knowledge?
answer
Outcomes research, qualitative research, and quantitative research
question
Which of the following characteristics is not descriptive of quantitative research?
answer
It is used to develop a theory
question
What characteristics are descriptive of quantitative research?
answer
Basic elements of analysis are numbers, data are analyzed with statistics, and generalization of findings is important
question
Which of the following is a characteristics of qualitative research?
answer
Analysis of the data involves individual interpretation
question
What type of research involves the systematic investigation of relationships among variables?
answer
Correlational research
question
Which of the following describes the basis of grounded theory methodology used in research?
answer
Research continually use data to reformulate, revise, and test propositions until a theory evolves from the data
question
Which of the following research methodologies is used to study lived experiences?
answer
Phenomenology
question
What type of quantitative research is conducted to generate knowledge that will directly influence clinical practice?
answer
Applied research
question
Which of the following statements about sampling is true?
answer
Random or probability sampling methods require more rigor and research control
question
Experimental studies are most often conducted in which of the following settings?
answer
Highly controlled setting
question
What term is used to describe the specific goal or aim of a study?
answer
Study purpose
question
The purpose of a study was to identify caring behaviors desired by patents with (AIDS) or (HIV) infection. This purpose statement indicates that the study probably is an example of
answer
Descriptive research
question
Sources of research problems for nursing research include
answer
Nursing practice, Areas of health concern, and the literature
question
Which of the following statements about research objectives, questions, and hypotheses is true?
answer
They are used to link the research problem and purpose to the study methods and analysis strategies
question
The statement "People want control of their own health problems" is an example of which of the following?
answer
Assumption
question
A small urepresentative sample s an example of which of the following?
answer
Methodologcal limitation
question
Data analyses are conducted to reduce, organize, and give meaning to the data. Data analyses are used to produce which of the following?
answer
Results
question
Extraneous variables may be controlled by
answer
Selecting a homogeneous sample
question
Which of the following are the four major parts most often included in a research report?
answer
Introduction, methods, results, discussion
question
Which section of a quantitative research report includes the implications of the findings for nursing practice and theory and the recommendation for further research?
answer
Discussion
question
The "Methods" section of a research report should include a subsection on the measurement methods used. Which of the following statements related to the information to be included in this subsection?
answer
Sufficient information about the instrument must be provided for he reader to see the link between the concept and the way it was operationalized in the study
question
Research outcomes should focus on
answer
specific recommendations for implementation (or not) of the findings in practice, what the findings contribute to building knowledge, and specific recommendations for future research
question
Which of the following are measured in research?
answer
Variables
question
Which of the following statements correctly describes a true experiment?
answer
Making modifications to true experimental designs decreases their internal and external validity
question
Which of the following statements is a belief reflective of the worldview on which qualitative research is based?
answer
There is not a single reality
question
Scientific rigor in qualitative studies requires
answer
Openness in collecting data
question
The research question of a phenomenological study of the birth of a first child might be
answer
What is the meaning of a woman's lived experience of having a first child
question
Grounded theory is based on the belief that
answer
It is possible to understand the process by which something happens, rather that just describing what is happening
question
The emic approach to ethnographic research involves studying
answer
Behavior from within the culture
question
Which of the following statements about historical research is true?
answer
Triangulation of data collection methods and verification from other sources make life histories more valuable
question
Data collection and data analysis occur simultaneously in qualitative research. One technique that is used to help the research to not misinterpret the phenomenon as the subject experiences it is to set aside what is known about the experiences. This technique is called
answer
Bracketing
question
Which qualitative research methodology requires the understanding of culture before initiating data collection?
answer
Ethnographic
question
The process of external criticism is used in which of the following qualitative research methodologies?
answer
Historical
question
Internal criticism in historical research refers to
answer
Identifying possible biases, which threaten the accuracy of what was said
question
Which type of qualitative research method was used by the theorist Benner in her study of nursing practice?
answer
Phenomenological
question
Which type of qualitative research method was used by the theorist Leinger in her study of nursing practice?
answer
Ethnographic
question
Which type of qualitative research was used by Fagerhaugh and Strauss in their study of pain management?
answer
Grounded theory
question
The reliability and validity of historical research are based on which of the following concerns?
answer
the reliability of the primary data source
question
Which of the following statements describes the special relationship between the participants and the researcher in qualitative research?
answer
the participants are considered to be colleagues
question
A research problem is
answer
an area of concern or situation in need of a solution
question
Research problems occur when there are gaps in knowledge about how to address a significant clinical problem. Which of the following would indicate that current knowledge is insufficient and that additional study of a clinical problem is needed?
answer
Little is known about the variables, findings of previous studies have been inconclusive and/or conflicting, and ethnic minority and women subjects have not been included in many states
question
Which of the following statements correctly describes the research problem and purpose of the study in a quantitative study?
answer
the purpose statement is very specific about what will be studied, whereas the problem statement is more abstract
question
The focus of significant research problems and purposes are
answer
addressing research priorities in nursing, building on previous research, potential impact on clinical practice
question
Which of the following most accurately describes the focus of outcomes research?
answer
comparing and contrasting groups on selected preexisting variables
question
As the researcher develops the research problem and purposes of the study, he or she must take into consideration the feasibility of the study. Which of the following statements best describes the concept of feasibility?
answer
It is an evaluation of whether the researcher has the ability and resources (e.g. facilities, time, potential subjects) and ethical protections for participants to carry out the study as proposed
question
A researcher identified modifiable risk factors that had an impact on smoking. If you wanted to do an approximate replication of that study, could you change the operational definition of the concept of "smoking"?
answer
Yes, but the new operationalization would need to be similar to the conceptual definition
question
The purpose statement of a qualitative study is expected to identify
answer
the focus of the investigation (e.g. an event, a phenomenon, a culture)
question
Which of the following statements about clarifying and refining a research problem is true?
answer
several alternative problems should be evaluated before one is selected for study
question
In some studies, researchers make a formal statement of the expected relationship between two or more variables in a specified population. This formal statement is a
answer
Research hypothesis
question
Research hypotheses may be classified as either associative or casual. Which of the following is a characteristic of associative research hypothesis?
answer
It identifies variables that vary or change together in an identified population
question
Research hypotheses also may be classified in terms of being simple or complex. Which of the following statements correctly describes a study designed to test a simple hypothesis?
answer
Two variables are included in the hypothesis to be addressed
question
The directional hypothesis for a study is
answer
Substantive theory and/or previous research
question
Adults using guided-imagery relaxation have a lower heart rate, blood pressure, and perceived anxiety level that adults not using a relaxation technique. Which of the following set of characteristics best describes this hypothesis?
answer
Complex, casual, research hypothesis
question
Research studies include both a research hypothesis, which states what the researcher thinks will be found, and a null hypothesis is true?
answer
The null hypothesis states that no interaction occurs between variables or that no relationship exists among the variables being studied
question
Which of the following states the primary characteristic(s) of variables that separate them from concepts?
answer
Values of variables must be able to be measured or manipulated, and the values must vary among the objects, people, or situations in the study
question
In a study examining cause-and-effect interactions, the cause portion of the interaction is represented by the
answer
Independent variable
question
Demographic variables are attributes of subjects that are collected to allow the researcher to
answer
develop a description or profile of the sample
question
What is the independent variable in the following hypothesis? Adults using guided-imagery relaxation have a lower heart rate, blood pressure, and perceived anxiety level than those in adults not using a relaxation technique
answer
Guided-imagery relaxation/no relaxation
question
A variable that can interfere with an intervention but cannot be controlled is a(an)
answer
Confounding variable
question
A research study report states that "Heart rate was recorded using a cardiac monitor." This statement is an example of
answer
an operational definition
question
Which of the following statements about operational definitions is true?
answer
Operational definitions are developed so that variables can be measured in research
question
In published research literature, a primary source refers to
answer
An article written by the people who did the study
question
Regarding citation dates of literature to be included in a literature review for a research study, which of the following statements is true?
answer
The literature review should include backgrounds on the variables in the study
question
Which of the following indexes(indices) is the most helpful in locating sources for a nursing research proposal?
answer
Cumulative Index to Nursing & Allied Health Literature (CINAHL)
question
In searching databases, it is important that the researcher identify keywords to enter into the search process. Which of the following statements about these keywords is true?
answer
The researcher may need to find synonyms of alternate terms to describe the concepts
question
Sometimes a search strategy identifies too many sources. How might the researcher limit the number of citations to retrieve and critique?
answer
Limit the years from which the researcher wishes to use citations usually the most recent, combine concepts using AND so that only citations that address all of the concepts are identified, and Request citations only for articles that can be downloaded as the full-text version
question
Reading and critiquing research reports constitutes an important step in the review of literature. The first step in reading a research report is to review it by
answer
Skimming the article to get an overall sense of the content
question
The process of reading and critiquing an article includes
answer
Highlighting or noting important content and ideas throughout the article
question
Which of the following qualitative research methods uses a minimal literature review?
answer
Grounded theory
question
The literature may be actual source of data in which of the following qualitative methodologies?
answer
Historical research
question
What is a landmark study?
answer
A study that changes the literature
question
In performing a complex literature search using a computerized database, what term should be between each of the keywords?
answer
AND
question
When a full-text article is found in a bibliographic citation database, how does the researcher obtain the article?
answer
Clicking on the link
question
Readers of theoretical literature often experiences confusion in the use of the terms "conceptual model" and "theory." Which of the following statements reflect(s) general consensus about the use of these terms in nursing?
answer
theories present a view of phenomenon that is specific enough to be used to guide research, the scope of the theories is limited in comparison with that of conceptual models, and conceptual models are broad and abstract and reflect a philosophical position
question
Which of the following is a concept?
answer
Restlessness
question
Concepts identified in a study may or may not be variables in that specific study. In which of the following studies would the concept "gender" also be a variable?
answer
A study comparing men and women in their response to an intervention
question
A relational statement says that a relationship of some kind exists between two or more concepts. For the statement "the relationship between two concepts is positive," which of the following is an accurate translation?
answer
As the values of Concept A increase, values of Concept B can be expected to increase
question
Which of the following statements about frameworks in research is true?
answer
Frameworks are important in both qualitative and quantitative research
question
What is the best definition of intervention theories?
answer
they show why a procedure works
question
From what field(s) did many nursing theories derive their ideas?
answer
Psychology, physiology, sociology
question
A variable in a study is characterized by which of the following essential elements?
answer
a concept, a conceptual definition, a method of measurement
question
Theories link interrelated concepts to present a view of phenomenon or something that is happening in nursing. Which of the following statements about theories is (are) true?
answer
Theories begin when research findings are organized and synthesized to explain what is happening in an identified situations, theories may originate from abstract ideas, institution, or personal experiences, and many theories are needed to stimulate new and different nursing interventions or protocols
question
Philosophy influences the way in which people view the world, what they consider to be real, and the beliefs, values, and attitudes they hold. Which of the following statements about nursing philosophy, practice, and research is true?
answer
the philosophies of the nursing support both quantitative and qualitative approaches to research
question
Which of the following was developed in the late 1940s to address ethical conduct of biomedical research?
answer
Nuremberg Code
question
Which of the following is not a human right that requires protection during the conduct of a study?
answer
Right to experience the treatment
question
Which of the following potential research subjects have diminished autonomy and are considered incompetent to give informed consent?
answer
Children, Mentally ill, cognitively impaired elderly
question
Which of the following statements about obtaining permission to study children is true?
answer
Children aged 7 or older, with normal cognitive development, may be asked to assent to participating in research
question
When a subject's identity cannot be linked, even by the researcher, with his or her individual responses, this subject is said to have
answer
Anonymity
question
A study requires diabetic subjects to perform one or more blood glucose determinations per day. The level of discomfort or risk for the subjects is rated as
answer
Temporary discomfort
question
Which of the following is not part of the balancing of benefits and risk for a study?
answer
Eliminating all risk of the study
question
Essential elements of informed consent include which of the following
answer
disclosure of essential information regarding the study, comprehension of essential study information, and competency to give consent
question
Subjects with diminished autonomy require which of the following types of documentation of informed consent?
answer
Formal written consent document signed by the subject and/or parent or legal guardian
question
Written informed consent may be waived in some circumstances that present no more than minimal risk to the potential subject-for example, completion of questionnaires not asking for sensitive data. What is the researcher's responsibility in this case?
answer
The researcher is obliged to inform the potential subject of all of the usual elements of consent (e.g., disclosure of the purpose of the study, obligations of the participant, and voluntary nature of participation) in a cover letter or in some other identified fashion
question
Institutional review boards (IRBs) I universities, clinical agencies, and managed care centers are responsible for reviewing studies involving human subjects for the express purpose of
answer
Determining if potential benefits of the investigation outweigh any risk that may be present to the subject
question
For a study that involves a chart review to obtain information abut a patient's smoking history, age, gender, and incidence of cardiovascular disease, which of the following types of review by an institutional review board (IRB) will be required?
answer
Exempt review
question
Which act requires that the privacy of people's health information be Protected?
answer
Health Insurance Portability and Accountability (HIPPA)
question
What level of institutional review board (IRB) review should be undertaken for a study in which the subjects participate in a clinical trial of new medications?
answer
Complete review by only IRB
question
What level of institutional review board (IRB) review should be undertaken for a study in which the participants complete anonymous questionnaires?
answer
Exempt status
question
What level of review by an institutional review board (IRB) should be undertaken for a study in which subjects participate in interviews about their lived experience f being a nurse?
answer
Expedited review
question
A researcher who makes up results of a study is guilty of
answer
Fabrication
question
Which of the following regulations is(are) used to protect animals in research studies?
answer
Public health service policy on humane care and use of laboratory animals, animal welfare assurance statement, state and federal law
question
the consent form in a research proposal needs to include all the following except
answer
Treatments provided to the control group
question
What is the initial question the researcher should ask when selecting a research design for a particular study?
answer
What is the primary reason for the study?
question
which of the following is a condition for determining causality in research studies?
answer
The effect should not occur unless the cause is, or has been, present
question
In health sciences it is unlikely that researchers will be able to establish absolute causality. Therefore, most nursing research studies must deal with relative cause and probabilities of a cause leading to an effect. Which of the following statements about probability is true?
answer
The researcher investigates the likelihood that an effect will occur under specific circumstances
question
Manipulation is a term used in research to mean
answer
The ability to determine the various treatments given to groups in quasi-experimental and experimental studies
question
Bias is a term used to indicate that data in a study are being distorted or slanted away from reality by some influencing factor. Which of the following statements about bias in research s true?
answer
Preconceived ideas about what the findings of a study may be could lead to bias in interpreting data
question
Controlling the treatment is one of the elements of a good design. Which of the following statements about this element is true?
answer
Controlling the treatment is enhanced with a clear description of all steps of the treatment
question
the design for a study to gain more information about characteristics within a particular field of a study should be
answer
Descriptive
question
Case study designs can involve in-depth study of
answer
A single institution, Small groups of subjects, A family
question
Which of the following can be achieved using a correlational design?
answer
Testing of relationships proposed in a theoretical proposition
question
Which of the following statements about quasi-experimental designs is true?
answer
They are an alternative for establishing causality when an experimental study might not be ethical or feasible
question
Which of the following statements about replication studies is true?
answer
Replication studies extent knowledge even if they do not confirm previous study findings
question
Which of the following elements are required in an experimental design?
answer
Random assignment of subjects to groups, control of variance in sampling, and carefully defined variables
question
A randomized clinical trial is used to study what kind of effect?
answer
Treatment outcome
question
The most critical goal of proper research design is
answer
Consistency
question
Other than data related to the concepts being measured to address the research objectives, questions, or hypotheses, what data can be controlled in the data collection process?
answer
Demographic data such as age, gender, and the like, Information related to the diagnosis (For clinical studies), and Cormorbid conditions or problems in addition to the admitting diagnosis
question
Several problems can occur during data collection. Which f the following is a researcher-related problem?
answer
Bias
question
Comparison groups are a feature of which of the following research designs?
answer
Quas-experimental study
question
The funding agency that focuses most on outcomes research is
answer
The agency of Healthcare Policy and Research
question
The sampling method most desired for outcome studies is
answer
Convenience sampling using large heterogeneous samples
question
The process of describing clinical problems, identifying possible courses action, assessing the probability of outcomes, and calculating a optimal course of action is referred to as
answer
Clinical decision analysis
question
a unique characteristic of prospective cohort studies is that
answer
Data are collected from subjects who are at risk for, but do not currently have the problem identified
question
Which of the following statements about outcome variables is true?
answer
Available measuring instruments must be sensitive enough to detect changes over time
question
Outcomes in nursing research are considered time dependent for which of the following reasons?
answer
Some findings may not be apparent for a long time, The results may be only temporary, and Outcomes in some instances are immediately seen
question
According to sampling theory, findings can be generalized to
answer
the target population
question
the definition of target population is
answer
A list of all members of the population
question
the definition of a set of sampling criteria is
answer
A list of the characteristics essential to be a member of the target population
question
The term representativeness means that
answer
the sample must be like the population in as many ways as possible
question
Which of the following statements gives the major difference between control groups and comparison groups in experimental research?
answer
Random selection of subjects for the sample and random assignment to groups are hallmarks of true control groups
question
the definition of sampling frame is
answer
A list of every member of the population
question
When subjects are selected because they happen to be in the right place at the right time, the sampling method is referred to as
answer
convenience sampling
question
When subjects area selected randomly on the basis of their fir in categories of variables important to the study, the sampling method is referred to as
answer
Stratified random sampling
question
Nonprobability quota sampling is most closely related to which of the following probability sampling techniques?
answer
Stratified random sampling
question
Sample size in quantitative studies is best determined by
answer
Power analysis
question
In studies, the intervention is expected to have a small effect size. Which of the following statements about effect size is true?
answer
Differences between groups will be more difficult to detect
question
Which of the following statements describes a heterogeneous study?
answer
Members of a sample have different values on study variables
question
A sample should be homogenous because
answer
the ample with common characteristics more clearly indicates the impact of a treatment
question
For a study using one independent variables and one dependent variable, a good sample size would result if
answer
The study had 40 participant, and 3 dropped out
question
which of the following is an example of mortality?
answer
The participant leaves the study in the middle
question
A researcher can undertake random sampling by which of the following strategies?
answer
Choosing the participants out of a hat, Using a computer program, Assigning each volunteer a number and then choosing the participants using a random numbers tabe
question
What is the minimum acceptable power in a study?
answer
.80
question
If every fifth baby born in a city is entered into a study, the sampling method is called
answer
Systematic sampling
question
Which of the following statements describes how the effect size of a sample influences the null hypothesis?
answer
a large effect size results in rejection of the null hypothesis
question
Which of the following would require the researcher to increase the sample size?
answer
Increasing the number of dependent variables
question
Qualitative sampling focuses on what particular part of a research study?
answer
The incidents in the lives of the participants
question
When a researcher in a qualitative study chooses the participants based on what they ma be able to contribute to the study, the sampling method is called
answer
Purposive sampling
question
Another name for snowball sampling is
answer
Network sampling
question
Sampling that helps to develop theory is called
answer
theoretical sampling
question
Data saturation depends on which of the following criteria?
answer
Scope of the study, Nature of the topic, and Quality of the data
question
which of the following is an example of cluster sampling?
answer
Random hospitals are selected in a region, and then nurses in each hospital intensive care unit (ICU) are asked to participate in the study
question
Which of the following variables can be directly measured?
answer
Vital signs (temperature, pulse, respiratory rate, blood pressure)
question
Which of the following is an example of random measurement error?
answer
The researcher presses the wrong key when entering data into the computer
question
Sources on a multiple-choice final examination represent an example of which of the following levels of measurement?
answer
Interval
question
Possible choices for the variables "Education" are given as
answer
did not graduate from high school; high school graduate; college degree; graduate degree. This set of choices is an example of which of the following levels of measurement?: Ordinal
question
Which of the following choices is an example of an item on a Likert scale?
answer
Instructor kept convenient office hours: strongly agree; disagree; neutral; agree; strongly agree
question
Which of the following does not affect the reliability of measurements in a Study?
answer
Systematic error
question
The term "reliability" is best understood reflecting
answer
Consistency of measurement obtained with use of the identified instrument
question
Evidence of validity of measurement can be obtained by examining
answer
Different groups
question
the amount of change in a physiologic measure that can be detected reflects an instrument is
answer
Sensitivity
question
an example of systematic error is
answer
a thermometer measurement indicating a body temperature as 0.1 higher than the accurate temperature
question
Systematic error can be diminished by
answer
Using a valid measurement tool
question
Which type of reliability is examined by Cronbach's alpha?: homogeneity
answer
...
question
Which of the following statements abut error in physiologic measurement is True?
answer
Physiologic measures are subject to several sources of error
question
Physiologic measures may be obtained in which of the following ways?
answer
Self-report, Observation, Electronic Monitoring
question
In developing a strategy for observational measurement, the researcher needs to ensure
answer
Consistency
question
Which of the following is true in relation to structure interviews?
answer
The interviewer is required to ask the questions precisely as it has bee designed
question
Encouraging the participation to keep talking is a strategy used in interviews to
answer
Elicit more information n a specific area
question
a measurement strategy that is fairly new to nursing studies is the use of focus groups. Which of the following statements about focus group studies is true?
answer
Groups are made up of subjects who are similar to ach other to encourage candid discussion
question
In developing a questionnaire, the researcher should
answer
identify the essential content to be covered
question
which of the following I not an example of a Scale? Questionnaire
answer
...
question
Which are examples of scales
answer
Rating, Likert, Semantic differential
question
A line 100mm long with right-angle stops at each end indicating bipolar describing sensations is referred to as: Visual analogue scale
answer
...
question
The researcher want o collect data abut the evaluation process of staff nurses on a unit. Which of the following measurement tool is best to gather the data?
answer
Questionnaire
question
which of the following will provide the most sensitive measurement of a concept such as pain intensity? A visual analogue scale
answer
...
question
You are examining several instruments to find the one most appropriate for your study. Which of the following findings should be of greatest concern?
answer
The instrument has been used in a number of studies that have not reported validity and reliability data. You find a recent article written by a credible researcher criticizing the validity and reliability and evidence that the instrument is invalid for measuring the concept of interest
question
Finding an appropriate measurement tool is based on which of the following assumptions?
answer
The concept to be measured has been clearly defined
question
Which of the following is an advantage of self-reports over interviews?
answer
Self-reports allow respondents to easily writ down measurements and perceptions soon after the event
question
In nursing research, which of the following researcher factors is most important in relation to statistical analysis?
answer
The researcher should understand the meaning underlying the choice and interpretation of statistics
question
Using decision theory, if the alpha level of significance for determining differences between groups is set at .05, which of the following probability levels calculated during data analysis has the most significant difference?
answer
None of the Above
question
If you are conducting a study to examine relationships or predict an event, your study is based on which of the following theories?
answer
Probability theory
question
According to the theoretical normal curve, what percent of the scores un a data set are within 2 standard deviations (above and below) the mean?
answer
95%
question
Which of the following statements about a one-tailed test of significance is True?
answer
The researcher is interested in extreme scores in only one tail of the distribution
question
A type I error occurs when
answer
The results indicate a statistically significant difference when in reality no significant difference exist
question
The power of a statistical procedure is the
answer
Probability that a statistical test will detect a significant difference if one exists
question
A researcher reports that a finding in a study comparing effectiveness of two interventions is statistically significant. Which of the following statements about this study is true?
answer
the level of significance of the statistical finding reveals nothing about the actual size of the difference
question
After entering data into a database, the researcher prints a copy of the data and cross-checks all of the data for accuracy. This process is referred to as
answer
Cleaning the data
question
Analyses performed in studies with more than two groups often indicate that the groups are significantly different but do not identify which groups are different. In such instances, a second analysis is then performed to identity significant differences between groups. These analyses are referred to as: Post hoc analyses
answer
...
question
Which of the following should be done before analyzing data designed to test the hypotheses or questions for a research study?
answer
Description of the sample, Establishing the reliability of measuring instruments, and Exploratory analysis of the data
question
Many decisions need to be made in selecting the appropriate statistical procedure for a study. Which of the following statements about selection of statistical procedures is true?: Specifying the purpose of the study and stating the hypotheses or research questions will narrow the options of statistical procedures considerably
answer
...
question
Which of the following statements about use of descriptive statistics is true?
answer
they are used in every research study, qualitative as well as quantitative, they are used to identify patterns in data, and they are used to address objectives of some studies
question
Which of the following is not a descriptive statistic?
answer
Correlation
question
The mean is the basic statistic that forms the base for many more advanced statistical procedures. Which of the following statements about the mean is true?
answer
It is the mathematical average of a set of scores
question
The best definition of outliers is that they are
answer
unusual scores that should be examined
question
Which of the following correlational procedures looks at the extent of a Relationship between two variables?
answer
Pearson Product Moment Correlation
question
The most common purpose for Pearson correlational is to examine
answer
Relationships between two variables
question
Which of the following hypotheses would be linked with a Pearson correlation coefficient analysis?
answer
X and Y occur together
Get an explanation on any task
Get unstuck with the help of our AI assistant in seconds
New