Suppose That a Scale Had Rather High Reliability,but Very Low

question 21

Multiple Choice

Suppose that a scale had rather high reliability,but very low validity.Which of the following is most likely to be true of this scale?

• A)It doesn't measure anything at all;it's almost entirely error.
• B)It measures the right characteristic,but with much error of measurement.
• C)It measures some characteristic with little error,but it is the wrong characteristic.
• D)It could easily be improved by adding a few more items.
• E)It could easily be improved by removing a few items.

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Definitions:

Aptitude Test

A standardized test designed to measure an individual's ability or potential in a particular skill or field of knowledge.

IQ Test

A standardized test designed to measure human intelligence and cognitive abilities in various aspects, such as logical reasoning, verbal comprehension, and spatial visualization.

Manual Dexterity

The skill of using one's hands to perform tasks with speed and precision, often important in various trades and crafts.