Dr Herrin Was Lecturing to His Students About Random Assignment

question 83

Multiple Choice

Dr. Herrin was lecturing to his students about random assignment and noted that random assignment is integral to reduce _____ before a study begins.

• A) power
• B) random error
• C) systematic error
• D) regression to the mean

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Definitions:

Reflex Arcs

The neural pathway that mediates a reflex action, involving receptors, sensory neurons, sometimes an interneuron, motor neurons, and effectors.

Interneuron

A type of neuron that serves as a connection between sensory neurons and motor neurons, facilitating communication within the central nervous system.

Standard Deviation

A statistical measure that quantifies the variation or dispersion of a set of data points around their mean average.

Fixed-Interval

In the context of psychological reinforcement, it refers to a schedule where rewards are given after a fixed time period has elapsed, assuming a correct response is made.