Dr Feng Devises a Questionnaire to Measure Adults' Extraversion, a Stable

question 233

Multiple Choice

Dr. Feng devises a questionnaire to measure adults' extraversion, a stable personality trait. Dr. Feng computes the questionnaire scores of a large sample of adults. Six months later, he gives the same sample the same test. The correlation between the two sets of scores is .10. What can one conclude regarding Dr. Feng's test?

• A)It is not reliable.
• B)It is reasonably reliable.
• C)It is not valid.
• D)It is reasonably valid.

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Definitions:

Enthusiasm

A feeling of energetic interest in a particular subject or activity and an eagerness to be involved in it.

Complement Good

A product that adds value to another product when used in conjunction, such as cameras and memory cards.

Price of Eggs

The cost at which eggs are sold, often influenced by factors such as production costs, market demand, and supply conditions.

Demand for Bacon

The desire and willingness of consumers to purchase bacon at various prices.