How to Determine Sample Size


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question 1 of 3

Which of the following best describes statistical error?

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1. In general, which type of sample has more error?

2. You want to study the effect of cookie consumption on weight. What would be the best sample for this study?

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About This Quiz & Worksheet

With this quiz/worksheet combo, you can test your understanding of sample size and error as they relate to research in the field of psychology. You'll need to answer questions about the factors that guide the choice of sample size in order to pass the quiz.

Quiz & Worksheet Goals

Ensure that you can answer questions on the following:

  • The definition of 'error' in terms of psychological research
  • The type of sample that has more error
  • The type of sample needing a larger sample size
  • What prevents researchers from having a large sample size
  • The practical considerations putting constraints on sample size

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the related lesson on determining sample size for psychological research
  • Making connections - understand why the type of sample dictates what size to use
  • Knowledge application - use your knowledge to answer questions about constraints on sample size

Additional Learning

Keep studying the associated lesson, How to Determine Sample Size, for further insight into psychological research. This lesson covers the following objectives:

  • Define 'sample' in this context
  • Know how to find the ideal sample size
  • Understand the real-world issues that hamper large sample sizes