A Research Study Finds That 40-Year-Olds Are Better Able to Solve

question 14

Multiple Choice

A research study finds that 40-year-olds are better able to solve math problems than 80-year-olds. It is suspected that the differences in problem-solving ability result from the fact that 80-year-olds had fewer opportunities to study math and did not have access to calculators or computers. If true, the study has revealed ________.

• A) experimenter bias
• B) a placebo effect
• C) confirmation bias
• D) cohort differences

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Changed in form or character, typically in a way that improves or modifies the original.

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