Assume That Latané and Darley Want to Demonstrate the External

question 44

Multiple Choice

Assume that Latané and Darley want to demonstrate the external validity of their 1968 experiment on bystander intervention. To do this, they conduct a study in which participants solve crossword puzzles alone, or in large or small groups. While the participants are working on the puzzles, they overhear a woman fall from a ladder and cry out, "Oh, my leg! I can't move it!" The researchers then observe and record the number of participants who attempt to help. The study described here represents a(n) __________ of the original "seizure" study.

• A) manipulation check
• B) replication
• C) needless duplication
• D) encore

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Definitions:

P-Value

A measure in statistical hypothesis testing that helps in determining the significance of the results.

Null Hypothesis

The hypothesis that there is no effect or no difference, serving as the default assumption in hypothesis testing.

Marginal Propensity

The fraction or portion of an additional amount of income that is spent on consumption, saving, or other economic activities.

Alternative Hypotheses

A statement in hypothesis testing that is accepted if the evidence suggests that the null hypothesis is false.