What Is One Possible Explanation for the Increase in Obesity

question 18

Multiple Choice

What is one possible explanation for the increase in obesity among Americans over the past 40 years?

• A) fewer meals eaten outside the home
• B) less time spent in sedentary work
• C) lower consumption of fast food
• D) increased portion sizes

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Definitions:

Group Equivalence

A condition in experimental research where the groups being compared are equal or similar in all relevant aspects except for the intervention being tested.

Repeated Testing

The process of conducting the same test multiple times to verify the reliability and consistency of its results.

Placebo Control Group

is a group in an experiment that receives a sham or inactive treatment, which is used to assess the psychological impact of receiving treatment rather than the treatment's actual efficacy.

Real Control Group

Represents a group in an experiment that does not receive the treatment or intervention, used as a benchmark to measure the effect of the treatment.