1-44. (applied-24) 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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