Questions Refer to the Following Research Study

question 165

Multiple Choice

Questions refer to the following research study:
Ronda would like to assess the effects of a reading comprehension course on the scores of students. She gives a group of remedial students a reading comprehension pretest and then randomly assigns them to either the treatment group or the control group. Shortly after the treatment, she measures their reading comprehension scores again.
-Suppose Ronda finds that more people dropped out of the treatment group than the control group. Ronda might be worried about which threat to internal validity?

• A) Instrumentation
• B) Experimental mortality
• C) Statistical regression
• D) Testing

---

Definitions:

Evolutionary Psychologists

Researchers who study how evolutionary principles explain human thoughts, feelings, and behaviors.

Sociobiology

The study of the biological basis of all social behavior.

Cultural Variations

Differences in cultural practices, beliefs, and values among various groups, influencing behaviors, perceptions, and social norms.

Heritability

A measure of how much of the variation in a trait among individuals within a population is due to genetic differences.