Testing of a New Instrument Demonstrates That It Has a High

question 12

Multiple Choice

Testing of a new instrument demonstrates that it has a high degree of internal consistency.What does this mean?

• A) The instrument is appropriate to measure a single concept.
• B) The instrument has low measurement error and high error variance.
• C) More refinement of the instrument is needed before it can be applied.
• D) The instrument is valid, but the reliability has yet to be determined.

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Definitions:

Coefficient Of Determination

A statistical measure represented by the symbol R², indicating the proportion of the variance in the dependent variable predictable from the independent variable(s).

Degrees Of Freedom

The number of independent values in a statistical calculation that are free to vary, often related to the number of observations in a dataset minus the number of constraints.

Sample Size

The number of individuals or instances taken from a larger population for the purpose of statistical analysis.

Independent Variables

Variables in an experiment or model that are manipulated or classified to observe their effect on dependent variables.