An investigator found strong evidence that elderly teachers and young teachers scored low on an aptitude test while middle-aged teachers scored high on this test.This is an example of

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The scenario describes a curvilinear relationship between age of teachers and their scores on an aptitude test, where both the elderly and young teachers score low and the middle-aged teachers score high. This is not a case of a positive or negative correlation between the variables, nor is there a lack of relationship between the variables.

An Investigator Found Strong Evidence That Elderly Teachers and Young