If an Experimental Group Improves in Ability or Several Groups

question 9

Multiple Choice

If an experimental group improves in ability or several groups differ in ability, at the end of the experimental period, it is assumed to be due to the effect of the treatment. However, there are some other explanations. Which of the following is not one of the other explanations?

• A) Too short an experimental period.
• B) Treatment was new and stimulating.
• C) Maturation effect.
• D) Groups were unequal initially.
• E) Effect of being tested.

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Definitions:

Effectively Overcome

To successfully deal with or surmount a challenge, obstacle, or difficulty through efficient and strategic means.

Realistic Expectations

Achievable and sensible aspirations or beliefs about future events and outcomes, grounded in practicality.

Encounter

To meet or come across a person or situation, often unexpectedly.

Roommates

Roommates are persons who share a living space such as an apartment or dormitory, but are not related by family or romantic relationships.