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4 years ago in Methodology , Questionnaire , Questionnaire Design , Sample Size By Vernica
How to determine the small sample size in EFA or PCA approach?
I am finding difficulty to feed sample data in EFA or PCA approach. Please suggest to me if there are any ways available to determine the small sample size data in EPA or PCA approach so it will be helpful for my future research?
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All Answers (5 Answers In All)
By Bob Answered 4 years ago
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If I am not wrong, I think the minimum sample size for Exploratory factor analysis (EFA) is 50. Usually, they use the rule of thumb method to feed the sample data, however sometimes, this method is unreliable. It is better to know the dataset well, and different data screening methods will help you understand the objective purpose well. But before reducing the sample size of your data, be careful with your data fields because sometimes, if you remove the required field, it will lead to improper solutions.Â
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And I am afraid that the sample data in EFA may not give you a feasible solution if any significant factor has been removed.Â
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Good Luck
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By Lisa Answered 4 years ago
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By Anita Bhatia Answered 4 years ago
https://www.tandfonline.com/doi/abs/10.1080/00273170902794206?journalCode=hmbr20
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By Larry Answered 4 years ago
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Compared to EFA and CFA, I always prefer to use sample datasets in the Confirmatory Factor Analysis (CFA) because the main job of the CFA is to test the measurement model. Here, I would like to clarify that I am not judging the models, as I give my personal opinion according to the external validity.
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All the Best
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By Rathi Answered 4 years ago
Hi,
The small sample data have a higher chance to provide inappropriate solutions. But still, you can try with 3-7 per factor.
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If you are still confused about the concept, you can look into research websites like Chanakya Research to know more. The experts will provide you with authentic and best possible solutions for your research-related queries.
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https://www.chanakya-research.com/
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All the Best!
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