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According to Erikson, what is the central issue facing middle-aged adults?
Midbrain
A portion of the brainstem involved in vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation.
Hindbrain
The rear division of the brain, responsible for regulating basic life functions such as heart rate and respiration, and coordination of movement.
External Validity
The extent to which the results of a study can be generalized to other situations and to other people outside of the experimental conditions.
Internal Validity
The extent to which a study establishes a trustworthy cause-and-effect relationship between a treatment and an outcome, avoiding confounding variables.
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