A Study Is Conducted to Determine Whether Sunshine Affects Depression

question 67

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 with a = 0.05 2 tail , what do you conclude? Assume for the purpose of this question, that sunshine was the only systematic difference between the conditions.

• A) reject H 0 ; sunshine appears to affect depression
• B) reject H 0 ; sunshine has no effect on depression
• C) retain H 0 ; we cannot conclude that sunshine affects depression
• D) accept H 0 ; sunshine affects depression

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Definitions:

Causal Identity Theory

A concept in social psychology that examines how individuals' identities are formed by the causal roles they perceive themselves occupying within the social world.

Cognition Theory

Cognition theory encompasses the psychological, neurological, and cognitive science theories that explain how the mind processes information, including perception, memory, thought, and problem-solving.

Categorisation Theory

A psychological theory that describes how individuals group objects, people, or events into categories based on common attributes or meanings.

Causal Language

Refers to the use of linguistic expressions that denote cause-and-effect relationships.