Random Assignment to Conditions Works to Balance Participants' Individual Differences

question 53

Multiple Choice

Random assignment to conditions works to balance participants' individual differences across conditions of the experiment by

• A)matching individuals on key variables.
• B)generating groups of participants that are equivalent,on average.
• C)forming groups based on an individual differences variable the researcher selects.
• D)asking individuals to participate in each condition of the experiment.

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Definitions:

Concordance Rates

The probability that two individuals with shared genetics (typically twins) will both present a particular trait or disorder, used in studies of heritability.

Cocaine Abuse

The problematic use of the stimulant drug cocaine, leading to significant impairment or distress.

Reward Circuit

A dopamine-rich circuit in the brain that produces feelings of pleasure when activated.

Dopamine

A neurotransmitter involved in many functions, including mood, motivation, reward, and the coordination of movement, and implicated in several mental health disorders.