In the Context of Experimental Research, the Logic of Random

question 98

Multiple Choice

In the context of experimental research, the logic of random assignment is

• A)if participants in an experiment are assigned to each group by stratification, the actual differences between the groups will sustain over the long run.
• B)if participants in an experiment are assigned to each group only by chance, the actual similarities between the groups will sustain over the long run.
• C)if participants in an experiment are assigned to each group by stratification, the potential differences between the groups on other characteristics will cancel out over the long run.
• D)if participants in an experiment are assigned to each group only by chance, the potential differences between the groups on other characteristics will cancel out over the long run.

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Definitions:

Marascuilo Procedure

The Marascuilo Procedure is a statistical method used to simultaneously compare proportions among multiple groups to identify significant differences.

Uniform Distribution

A distribution in which all outcomes are equally likely; a flat distribution where every value has the same probability.

Expected Frequency

The theoretical number of times an outcome is anticipated to occur in a statistical experiment based on the total number of observations and the probabilities of outcomes.

Uniformly Distributed

Describes a distribution where all outcomes are equally likely to occur.