Cronbach's Alpha Refers To

question 87

Multiple Choice

Cronbach's alpha refers to:

• A) the degree to which individual measurements of a variable differ from one another.
• B) a statistic used to indicate how much, on average, an individual score differs from the arithmetic mean of the scores.
• C) a statistic used to evaluate the internal consistency reliability of a scale.
• D) the conclusion a researcher makes when the probability is that one's hypothesis is unlikely to be incorrect given the data collected.

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Definitions:

Control Group

In experimental research, a group of subjects that does not receive the experimental treatment or intervention, used as a benchmark to measure the effect of the treatment.

Population

A group of individuals of the same species living in a particular geographic area, or the total number of individuals belonging to a particular category or groups.

Sample

A subset of a population selected for measurement, observation, or questioning to provide statistical information about the whole.

Biased Sample

A sample that does not accurately represent the population from which it was drawn, usually due to prejudiced selection methods.