DrTrantham Obtains the Following Data from a Large Sample of Community

question 171

Multiple Choice

Dr.Trantham obtains the following data from a large sample of community dwelling older adults: 1) "mental exercise" scores -- the average time spent on crosswords,brainteasers,and other puzzles each week; 2) physical exercise scores -- the average time spent on aerobic exercise each week; and 3) scores on a measure of overall current cognitive functioning.She then computes two correlation coefficients: one between mental exercise scores and scores on the measure of cognitive functioning,and one between physical exercise scores and cognitive functioning.Based on your text's discussion,which of the following pairs of coefficient is she most likely to find?

• A) mental exercise and cognitive functioning: .15; physical exercise and cognitive functioning: .15
• B) mental exercise and cognitive functioning: .15; physical exercise and cognitive functioning: .35
• C) mental exercise and cognitive functioning: .35; physical exercise and cognitive functioning: .15
• D) mental exercise and cognitive functioning: .35; physical exercise and cognitive functioning: .35

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Definitions:

Obsession

Persistent and intrusive thoughts, images, or urges that cause significant anxiety or discomfort.

Checking Behaviour

A type of compulsive behavior characterized by the need to check things repeatedly.

Hallucination

A perception in the absence of external stimuli, manifesting in any of the five senses.

Hoarding Disorder

A mental health disorder characterized by persistent difficulty discarding or parting with possessions, regardless of their actual value, due to a perceived need to save them.