I need your opinion on my research work.
I am going to Validating the SGRQ. I am planing to do EFA and CFA on 50 variable of SGRQ. I found some previous research done factor analysis on SGRQ.
When I analysed EFA, I got following results.
1. Assumptions
a. MISSING - LISTWISE
b. ROTATION - VARIMAX
c. CRITERIA FACTORS ITERATE(25)
d. FORMAT SORT BLANK(0.3)
e. EXTRACTION Principal Component Analysis
KMO and Bartlett's Test
Kaiser-Meyer-Olkin Measure of Sampling Adequacy. 0.476
Bartlett's Test of Sphericity
Approx. Chi-Square - 2089.212
df- 1225
Sig.- 0.000
communality - all 50 variables showed - more tham 0.5
15 factors identified with more than one EV
Some factors have two variables.
Can you help me to interpret ?