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

question 40

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.
If Dr. Kang decided against using random assignment, which of the following would be threatened?

Definitions:

Checklist

A list of items required, things to be done, or points to be considered, used as a reminder.

Selection Criterion

Criteria or standards used to make a decision or judgment, such as selecting candidates for a job based on their qualifications.

Performance Appraisal

A formal assessment process in which an employee's job performance is evaluated, typically by their manager, using established standards to guide improvements and professional development.

Rating Scales

Tools or instruments used to assign a value to a variable or to measure a subject's behavior, feelings, or perceptions along a continuum.