Three Groups of Males Take a Timed Reaction Test

question 59

Multiple Choice

Three groups of males take a timed reaction test. All the males in Group 1 are aged 20. The males in Group 2 are all aged 40. The males in the last group (Group 3) are all aged 60. The statistic reported to describe the differences in reaction times between groups is each group's mean score. However, this mean score does NOT identify _______.

• A) which group has the fastest reaction times
• B) a trend for reaction times based on age
• C) any individual's reaction time
• D) the group that would include the best candidates for a job requiring excellent reaction times

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The capability of producing goods and services efficiently and effectively.

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Actions or operations carried out by the government in order to provide public goods and services, regulate the economy, and support societal welfare.