epic midterm – Flashcards

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Epidemiology can help solve a variety of today's health related problems, ranging from smoking to youth violence
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true
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Primary prevention involves the prevention of disease after it occurs
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false
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A population is defined as all of the inhabitants of a given country or area considered together
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true
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The history of epidemiology originated as early as 1900
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false
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Tertiary prevention is directed toward the later stages of pathogenesis and involves programs for restoring the patients optimal functioning
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true
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Specializations that contribute to epidemiology include
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All of the answers
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Variation in the occurrence of diseases and other health outcomes in populations relates most closely to
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distribution
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Any factor that brings about change in a health condition or other defined characteristic is known as
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determinant
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A method for providing quantitative measurements of risks to health is known as
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risk assessment
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The English anesthesiologist who linked cholera outbreaks to contaminated water and innovated serval of the key epidemiological methods that remain valid and in use today was
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John Snow
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Operations research illustrates which of the following uses of epidemiology
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health services use
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A stage that takes place during the early phases of pathogenesis and includes activities that limit the progression of disease
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secondary prevention
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the individual whose name is associated with a natural experiment during an outbreak of cholera in London was
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john snow
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Epidemiology searches for associations between exposures and
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pg 6
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Illness due to a specific disease or health condition is known as
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Morbidity
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Which of the following is considered a key characteristic of epidemiology
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all of the answers
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The probability that an event will occur an individual will become ill or die within a stated period of time or by a certain age is known as
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risk
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Which of the following is not considered a use of epidemiology
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to provide healthcare services to specific individuals
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Whether a contaminated food such as tomatoes caused an outbreak of gastrointestinal disease is a simple example of
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a causal association
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Epidemiological methods can be applied to which of the following public health related fields
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all of the answers
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Incidence and prevalence are interrelated concepts
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true
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Lifetime prevalence refers to all cases of a disease diagnosed only at the end of a persons lifetime
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false
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Rates can be expressed in terms of any unit size of population that is convenient
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true
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Adjusted rates pertain only to morality rates
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false
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In a ratio the numerator always have a specific relationship
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false
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Prevalence measures do not aid in
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pg 35
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Which factors can decrease an observed prevalence
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pg 36
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Those members of the population who are capable of developing a disease or condition are known as
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the population at risk
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If A equals the number of deaths in 2009 and B equals the population at the midpoint of 2009 and C equals the number of persons aged 15-24, then the crude death rate per 100000 population would be
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(A/B) x 100,000
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All of the following are considered ratios except
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time
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Use the following example to answer the question according to a national survey of asthma. on may 1 2010, the number of residents of Oklahoma who had been diagnosed with asthma at any time during their life was A, the population on June 30, 2010, was B during the same year the number of new cases of asthma was Cthe incidence rate of asthma )per 100000) would expressed as
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(c/b) x 100,000
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What is one the first steps in presenting data after they have been reviewed for accuracy and completeness
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count and tabulate cases
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When the incidence rate of a disease increases, the prevalence will
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increase
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Epidemiologists can plot data and present it graphically through
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all of the answers
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Epidemiological measures provide the following types of information
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all of the answers
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the general fortuity rate refers to the number of live births reported in an area during a given time interval divided by the number of women aged 15 to 44 years in the area
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true
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Representativeness, or external validity, refers to the generalizability of the findings to the population from which the data have been taken
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true
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Life expectancy refers to the number of years that a person is expected to live at any particular year
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true
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Registries cannot be used to select patients for case control studies
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false
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In the US mortality data do not have a high degree of completeness
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false
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The medical examiner or coroner completes and signs the death certificate only if the cause of death was a homicide
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false
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The maternal mortality rate encompasses maternal deaths that result from causes associated with pregnancy
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true
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The major deficiency of reportable and notifiable data for epidemiological research purposes is the possible incompleteness of population coverage
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true
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Epidemiology is a quantitative discipline that requires data for descriptive and analytical studies
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true
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Three factors that affect the quality of epidemiological data are availbity, completeness, and the haute of the data
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true
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A centralized database for collection of information about diseases such as cancer is known as
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registry
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The BRFSS
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all of the answers
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Which of the following sources could be used for determining life expectancy
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pg 58 and 59
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The number of late fetal deaths after 28 weeks or more gestation plus infant death within 7 days of birth divided by the number of live births plus late fetal deaths during a year is the
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perinatal mortality rate
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Examples of reportable and notifiable diseases include
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all of the answers
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Using health related data that precede diagnosis and signal a sufficient probability of a case or an outbreak to warrant further public health response is known as
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syndromic surveillance
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the systematic and continuous gathering of information about the occurrence of diseases and other health phenomena is known as
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public health surveillance
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At the top of the asthma surveillance pyramid is
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mortality
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All of the following are considered vital events except
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graduation
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Studies of the effects of exposure to teratogens have used data from
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pg 48
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The number of live births during a specified period such as a year per the resident population during the midpoint of the year is the
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crude birth rate
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Monitoring cancer trends in the US population over time is a major application of
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registries
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The death of a fetus when it is the uterus and before it has been delivered is known as
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fetal mortality
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The purpose of state cancer registries are
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all of the answers
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Examples of information collected by fetal death certificates include
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all of the answers
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Cross sectional studies measure relationships between diseases and other variables at a particular time
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true
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One objective of descriptive epidemiology is to monitor known diseases as well as identify emerging problems
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true
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Assignment of some individuals to a particular racial classification on the basis of observed characteristics is unproblematic
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false
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The behavioral risk factor surveillance system (BRFSS) is not an ongoing cross sectional study
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false
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The cause of morbidity and mortality do nit differ according to the stage of life a person is in
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false
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Increases and decreases in the frequency of a disease within a year or over a period of serval years is known as
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pg 81
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In epidemiology place variables include
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localized occurrence of disease
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Health events that are related in time reflect
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temporal clustering
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Urban diseases and causes of mortality are more likely to be those spread by
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1 &2
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Differences in the occurrence of diseases and adverse health conditions in the population are known as
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health disparities
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Gradual changes in the frequency of diseases over long periods refer to
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secular trends
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For both males and females what type of cancer is the leading cause of cancer mortality
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lung and bronchus cancer
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The term that indicates cases of disease that occur in a specific geographic region is
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spatial clustering
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Descriptive epidemiology provides information for
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all of the answers
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in epidemiology person variables include
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1 &2
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A variable is any quality that varies ,or any attribute, phenomenon, or event that can have different values
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true
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A single value chosen to represent the population parameter is not called a point estimate
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false
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The overriding question that epidemiologists ask is whether a particular exposure is causally associated with a given outcome
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true
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One to one causation is not unusual because many diseases have only one causal factor
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false
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A multimodal curve is one that has several peaks in the frequency of a condition
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true
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The time period between initial exposure and a measurable response is known as
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latency
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The web of causation model specifies a type of causal relationship that is
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multifactorial
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The cycle of epidemiological research includes which of the following categories
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all of the answers
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A graphic plotting of the distribution of cases by time of onset is an
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epidemic curve
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A range of values that with a certain degree of probability contain the population parameter is known as
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confidence interval estimate
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With respect to derivation of hypotheses a type of association in which the frequency of an outcome increases with the frequency of exposure to a factor is known as
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method of concomitant variation
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A type of variable that can have an infinite number of values within a specified range is
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continuous
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Hills criteria of causality include which of the following
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all of the answers
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The category in a frequency distribution that has the highest frequency of cases is known as the
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mode
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The lowest dose at which a particular response occurs is known as the
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threshold
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A type of correlative association between an exposure and effect is a
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dose response relationship
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The process of passing from observations and axioms to generalizations is known as
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inference
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When the value of one variable increases and the value of a second variable increases the association is
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positive
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The ability of a study to demonstrate an association if one exists is known as
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power
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When the value of one variable increases and the value of another variable decreases the association is
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negative
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