Which of the Following Is a Weakness of a Posttest-Only

question 9

Multiple Choice

Which of the following is a weakness of a posttest-only control group design?

• A) Researchers have limited information available about group equivalence prior to treatment.
• B) It is expensive to the researcher in terms of time and effort.
• C) Confidentiality of the responses is compromised as the participants are unable to respond anonymously.
• D) Repeated testing may be occasionally bothersome to some participants.

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Death Rate

A statistical measure representing the number of deaths in a particular population, scaled to the size of that population, per unit of time.

Life Expectancy

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Health Expectancy

An estimate of the amount of time an individual is expected to live in good health, taking into account mortality and morbidity.

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