Determining sample size PreviousNext
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 Peggy Clements posted on Tuesday, May 12, 2009 - 6:25 pm
Is there a reference (or other resource) that I can use to help me determine how large a sample size I need for a study that will use latent class analysis?

I know how many separate items/variables I will have and I have a hypothesis about how many classes that I expect to find, but have no idea about how large a sample size I am going to need.

This is for a grant proposal I am writing with some math education colleagues. They have sets of items that they present to students, and certain patterns of right and wrong answers should identify specific types of misunderstandings students have about fractions.

thanks much.
 Linda K. Muthen posted on Tuesday, May 12, 2009 - 10:12 pm
Please see the following paper which is available on the website:

Muthén, L.K. & Muthén, B.O. (2002). How to use a Monte Carlo study to decide on sample size and determine power. Structural Equation Modeling, 4, 599-620.
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