The file WAIS.sps (on the website) is an SPSS file containing a correlation matrix, reporting the inter-correlations of subtests of the Wechsler Adult Intelligence Scale (WAIS), as collected from a...

The file WAIS.sps (on the website) is an SPSS file containing a correlation matrix, reporting the inter-correlations of subtests of the Wechsler Adult Intelligence Scale (WAIS), as collected from a sample of 200 non-clinical adult participants. The subtests of WAIS are:

Conduct a factor analysis of the correlation matrix. Interpret your results. To run the analysis in SPSS, highlight the entire code section and click the green arrow (‘play’) button. To run the analysis in R, copy the data from the .sps file, paste it into a text file, and read it into R. Write the commands you need to run a PFA.