Professor Loman Is Interested in Conducting a Study Examining the Impact

question 148

Multiple Choice

Professor Loman is interested in conducting a study examining the impact of class discussions on students' overall understanding of course concepts. In his experiment he uses a convenience sample of college-aged students. Ultimately, this is not a problem, because:

• A) all psychology studies use college-aged samples.
• B) convenience samples measure nearly the entire population of interest.
• C) the impact of class discussion on course comprehension is believed to be a universal phenomenon.
• D) college students are the target population for this particular study.

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Definitions:

Central Limit Theorem

A statistical theory that states the distribution of the sample mean of a large enough number of independent, identically distributed variables will be approximately normal, regardless of the population's distribution.

Sample Means

The average value of a sample, which is a subset of a larger population, used to estimate the population mean.

Normally Distributed

A statistical distribution where data points are symmetrically distributed around the mean, forming a bell-shaped curve.

Standard Deviation

An indicator of the degree to which a dataset's values vary or are spread, showing the distance of the values from the average.