A Study Is Conducted to Determine Whether Sunshine Affects Depression

question 97

Multiple Choice

A study is conducted to determine whether sunshine affects depression. Eight individuals are given a questionnaire measuring depression immediately following a run of 10 consecutive days when the sun shone for over 80% of the daylight hours. The same individuals have their depression measured immediately following 10 consecutive days without any sunshine. The following data are collected. The higher the score the greater the depression. Using the Wilcoxon signed ranks test to evaluate the data, the value of T obt is _________.

• A) - 3
• B) 3
• C) 33
• D) 4

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Definitions:

Group Cohesiveness

The extent to which members of a group remain together and are united in the pursuit of common goals.

Social Loafing

The phenomenon where individuals exert less effort to achieve a goal when they work in a group than when they work alone.

Groupthink

A psychological phenomenon that occurs within a group of people, where the desire for harmony or conformity results in an irrational or dysfunctional decision-making outcome.

Critical Thinking

The process of actively and skillfully conceptualizing, applying, analyzing, synthesizing, and evaluating information to reach an answer or conclusion.