When He Was Alone, Spencer Made Several Mistakes When Playing

question 16

Multiple Choice

When he was alone, Spencer made several mistakes when playing a very familiar piece on the piano. However, when asked to play the same selection for several of his relatives, Spencer did not make a single error. This difference in Spencer's performance is MOST likely explained by _____.

• A) social facilitation
• B) the bystander effect
• C) actor-observer bias
• D) groupthink

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Definitions:

Demographic Transition

Due to industrialization, a decline in the birthrate following a reduction in the death rate so that the population growth rate is lowered.

Birthrate

A measure of population growth or decline, calculated as the number of live births per 1,000 people per year.

Death Rate

The ratio of deaths in an area to the population of that area; usually expressed per 1000 individuals per year.

Carrying Capacity

The maximum population size of a biological species that can be sustained by a specific environment, given the food, habitat, water, and other necessities available in the environment.