Assume That Latané and Darley Want to Demonstrate the External

question 161

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) needless duplication
• B) encore
• C) psychological copy
• D) internal validity check
• E) replication

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Definitions:

Orexin

Orexin, also known as hypocretin, is a neuropeptide that regulates arousal, wakefulness, and appetite, playing a significant role in sleep-wake cycles.

Blood Glucose

The concentration of glucose present in the blood, crucial for energy supply to cells and seen as a key marker in the diagnosis and management of diabetes.

Ghrelin

A hormone produced by the stomach that stimulates hunger and food intake, playing a significant role in body weight and metabolism.

Hunger-triggering

Prompting or causing a sensation of the need to eat.