Bio Quiz Ch. 1 – Flashcards
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A hypothesis is a statement that can be:
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C. Tested and can be proven true or false
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If a paper published in a scientific journal stated that drinking coffee caused Parkinson's disease, this statement would most accurately be described as a ______?
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C. Hypothesis
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In a well designed experiment, the independent variable
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A. does not depend on another factor or condition
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In a study to investigate the health effects of drinking free tea: Group A is given green tea Group B is given water Group C is given nothing which is the experimental group?
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A. Group A
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Which of the above are the control groups?
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E. Both groups B & C (B. Group B given water C. Group C given nothing)
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In a study to investigate the health effects of drinking free tea, to rule out the possibility that caffeine was responsible for the health benefits in free tea, you would design the experiment to have:
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C. A control group that consumed decaffeinated green tea
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A significant result from a scientific study indicates:
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E. a non-random result
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A study is conducted to see if walking reduces joint stiffness in people suffering form arthritis of the knee. Half the participants are instructed to walk an additional 1 mile every day, while the other half are told to go about their normal daily routine with no additional exercise. In this study, the group that walks an extra mile every day is referred to as:
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B. the experimental group
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A study seeks to determine if fix oil is effective at preventing heart attacks. Scientists interview 200 people and ask about heart attacks in the past 3 years. 120 people take fish oil regularly, whereas the 80 who do not take fish oil are referred to as the "control group." The above is an example of _______
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C. An epidemiological study
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In a controlled experiment, the experimental group
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C. Tests the independent variable
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Which of the following would be required for a journal article to be peer reviewed?
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A. Independent scientific experts
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A hypothesis is testable if:
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B. It can be supported or rejected by carefully designed experiments
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A hypothesis is falsifiable if it:
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B. Can be ruled out by data that show that the hypothesis does not explain the observation
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A scientific theory is a:
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B. Hypothesis tat is supported by many years of rigorous testing and thousands of experiments
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A correlation is:
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D. a consistent relationship between two variables
