A Researcher Reports That the Mean Difference in Response Time

question 55

Multiple Choice

A researcher reports that the mean difference in response time to an auditory versus a visual cue is 0.83 s,with a pooled sample variance equal to 2.45.What is the effect size for this test using estimated Cohen's d?

• A) d = 0.53; medium effect size
• B) d = 0.53; large effect size
• C) d = 0.34; small effect size
• D) d = 0.34; medium effect size

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Definitions:

Social Distance

Bogardus’s concept of the relative distance people feel between themselves and other racial/ethnic groups.

Prejudice and Discrimination

Preconceived opinion that is not based on reason or actual experience; discrimination is the unjust or prejudicial treatment of different categories of people, especially on the grounds of race, age, or sex.

Theory

A statement that tries to explain how certain facts or variables are related in order to predict future events.

Racialization

The process of attributing complex characteristics (e.g., intelligence) to racial categories.