A Professor of Women's Studies Is Interested in Determining If

question 72

Multiple Choice

A professor of women's studies is interested in determining if stress affects the menstrual cycle. Ten women are randomly sampled for an experiment and randomly divided into two groups. One of the groups is subjected to high stress for two months while the other lives in a relatively stress-free environment. The professor measures the menstrual cycle (in days) of each woman during the second month. The following data are obtained. The obtained value of the appropriate statistic for evaluating H ₀ is _________.

• A) t obt = - 4.73
• B) t obt = - 4.71
• C) t obt = - 3.05
• D) t obt = - 0.47

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Definitions:

Clinical Psychologists

Mental health professionals with advanced degrees who diagnose and provide treatment for a wide range of psychological disorders and mental health issues.

Empirical Research

The collection of data through observation and experimentation to gain knowledge.

Anecdotal Evidence

Information derived from personal accounts, stories, or testimonials rather than from systematic scientific evaluations, often subject to bias.

Experimenter Bias

A process where the scientists performing the research influence the results, either intentionally or unintentionally, to achieve a certain outcome.