An L-Shaped Piece, Represented by the Shaded Area on the Figure

question 14

Multiple Choice

An L-shaped piece, represented by the shaded area on the figure, is cut from a metal plate of uniform thickness. The point that corresponds to the center of mass of the L-shaped piece is

• A) 1
• B) 2
• C) 3
• D) 4
• E) 5

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Definitions:

Discriminant Validity

The degree to which a measure does not associate too strongly with measures from which it is supposed to differ.

Correlation Coefficient

A statistical measure that quantifies the degree to which two variables vary together; it ranges from -1 to 1, indicating the strength and direction of the relationship.

Scale

A system of ordered marks at fixed intervals used as a reference standard in measurement; in research, it often refers to a set of numbers or descriptors that rate or categorize variables.

Construct Validity

Establishing the extent to which a test accurately represents the concept it's intended to measure, ensuring the theoretical construct is accurately operationalized.