Dr Kang, a Cognitive Psychologist, Conducts an Experiment Examining the Effect

question 46

Multiple Choice

Dr. Kang, a cognitive psychologist, conducts an experiment examining the effect of emotion on memory. He provides lists of 15 words to two groups of participants at his university. He puts the names of all the participants in a hat. The first 20 names he assigns to Group A and the last 20 he assigns to Group B. Group A is given a list of words that are very emotional in content (e.g., passion, murder) . Group B is given a list of words that are neutral in content (e.g., houseplant, desk) . He then measures how many words each group is able to remember after being distracted for 5 minutes by watching a video about the history of the university. He finds that Group A remembers 15% more words than Group B.
Dr) Kang sends his study to a journal to be published. One of the peer reviewers questions the way Dr. Kang manipulated emotion, arguing that being exposed to emotional words does not make one emotional. The reviewer is questioning which of the following?

• A)the statistical validity of the study
• B)the internal validity of the study
• C)the construct validity of the study
• D)the external validity of the study

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Definitions:

Marginal Product

The increase in output that results from employing one more unit of a particular input, holding all other inputs constant.

Marginal Productivity Theory

An economic theory that explains the determination of wages in the labor market, suggesting that the wage of a worker is set at a level equal to their marginal contribution to the production process.

Income Disparities

The differences in income levels among individuals, households, or regions, indicating inequality in the distribution of wealth.

Compensating Differentials

Wage differentials that compensate workers for the job attributes, such as difficulty level or undesirable conditions, indicating the premium required to attract workers to these positions.