Saya mau tau . dari Analisis faktor. Jelaskan dalam bahasa melayu

J.Schmid and J. M. Leiman (1957). The development of hierarchical factor solutions. Psychometrika, 22(1), 53–61.

Hans-Georg Wolff, Katja Preising (2005)Exploring item and higher order factor structure with the schmid-leiman solution : Syntax codes for SPSS and SASBehavior research methods, instruments & computers, 37 (1), 48-58