Application: Replication of Marsh SDQ Data

This example demonstrates a replication analysis for EFA using Osborne & Fitzpatrick’s (2012) procedure. We use internal replicability analysis with the SDQ data, randomly subsampling two independent samples from the original sample that are then analyzed separately using specific extraction and rotation guidelines based on our previous analyses of the scale. We are using the SDQ data because it is sufficiently large enough (N=15,661) to permit us to draw two moderately sized subsamples from the data. Unfortunately, the engineering and GDS data sets are not large enough to allow us to subsample from the data. If we were to do so, this would result in sample sizes of less than 240 and subject to item ...

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