If a Regression Equation Has Only One Explanatory Variable, Say

question 11

Multiple Choice

If a regression equation has only one explanatory variable, say x₁, its standardized coefficient must lie in the range:

• A)-2 to 0.
• B)-1 to 1.
• C)0 to 1.
• D)0 to 2.

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Definitions:

Floor Effect

Failure of a measure to detect a difference because it was too difficult.

Paper-and-pencil Questionnaire

A traditional survey method where participants respond to questions written on paper by physically marking their answers.

Functional MRI

A neuroimaging technique that measures brain activity by detecting changes associated with blood flow.

Double-blind Technique

An experimental procedure in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.