A Researcher Selects a Sample of 24 Participants and Has

question 26

Multiple Choice

A researcher selects a sample of 24 participants and has them complete a survey on dating preferences.In this example,what are the degrees of freedom for sample variance and what does this figure represent?

• A)df = 24;it represents the number of scores that are free to vary in a sample.
• B)df = 23;it represents the number of scores that are free to vary in a sample.
• C)df = 23;dividing SS by df makes the sample variance a biased estimator of the population variance.
• D)df = 24;dividing SS by df makes the sample variance an unbiased estimator of the population variance.

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Definitions:

Cognitive Growth

An increase in knowledge, understanding, and the ability to think critically and solve problems.

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Lev Vygotsky

A Russian psychologist known for his work on psychological development in children, emphasizing the role of social interaction and cultural tools in learning.

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