Hello!
I have done psychometric analysis using both SPSS and R, and the values are similar, but some are not the same, is this usual? Has it happened to anyone else even with same estimators?
Thank you for your feedback on this matter.
All the best,
Ana
It is not unusual to see slight differences in model estimates based on the software used. Grieder and Steiner (2022) authored an interesting paper comparing EFA models estimated with the psych package in R and the FACTOR algorithm in SPSS.
https://pubmed.ncbi.nlm.nih.gov/34100201/
These same authors also created the EFAtools R package as a means of creating replicable PAF estimated EFA models regardless of software.
Fairly normal. They will have different defaults, often use different algorithms, and use different random seeds. You need to provide more information about what you did in order for people to compare.
Exploratory factor analysis can be done with SPSS, but confirmatory analysis is not possible, you can do this with AMOS or Lisrel. The results will be similar, but there may be slight differences.
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