Before beginning a study on the health effects of obesity, a group of researchers agree that, for the purposes of their research, anyone with a Body Mass Index greater than 30 kg/m² will be considered obese. This is an example of _______________
A) a confounding variable
B) an operational definition
C) convenience sampling
D) an appeal to common sense
Answer: B
Rationale: Operational definitions are statements that describe the procedures (or operations) and specific measures that are used to record observations. By carefully defining the terms in a study, everyone can understand exactly how the variables are objectively measured.
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A. emotional lability B. hyperarousal C. anhedonia D. blunted affect
Any science that studies the __________ events that occur in nature is called a natural science
a. spiritual and religious b. physical and biological c. applied and practical d. developmental and static
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What will be an ideal response?
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a. ?review b. ?storage c. ?retrieval d. ?encoding