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Table 4 Factor loading of Igbo-MSPSS items from exploratory factor analysis using the Kaiser criterion and parallel analysis for determining dimensionality compared with original MSPSS and intercorrelations among the subscales of the Igbo-MSPSS for the three-factor and two factor structures

From: Adaptation and validation of the Nigerian Igbo Multidimensional Scale of Perceived Social Support in patients with chronic low back pain

  Factor 1 (friends) Factor 2 (significant other) Factor 3 (family)
Factor structures of the Igbo-MSPSS
 Igbo-MSPSS
  Igbo-MSPSS6 KC/PA = .84/.65 (MSPSS = .82)   
  Igbo-MSPSS9 KC/PA = .79/.71 (MSPSS = .86)   
  Igbo-MSPSS7 KC/PA = .77/.90 (MSPSS = .79)   
  Igbo-MSPSS12 KC/PA = .74/.78 (MSPSS = .86)   
  Igbo-MSPSS2   KC/PA = .92/.71 (MSPSS = .91)  
  Igbo-MSPSS1   KC/PA = .90/.77 (MSPSS = .74)  
  Igbo-MSPSS10   KC/PA = .75/.69 (MSPSS = .92)  
  Igbo-MSPSS5   KC/PA = .62/.74 (MSPSS = .91)  
  Igbo-MSPSS8    KC/PA = .83/.70 (MSPSS = .84)
  Igbo-MSPSS4    KC/PA = .78/.69 (MSPSS = .84)
  Igbo-MSPSS11    KC/PA = .74/.87 (MSPSS = .81)
  Igbo-MSPSS3    KC/PA = .70/.87 (MSPSS = .83)
 KMO = 0.88 (Kaiser criterion)
 Χ2 = 1415.25*** (Kaiser criterion)
Intercorrelations among Igbo-MSPSS subscales
Three-factor structure Factor 1 (friends) Factor 2 (significant other) Factor 3 (family)
  Factor 1 (friends) 1.00 0.64 0.63
  Factor 2 (significant other)   1.00 0.37
  Factor 3 (family)    1.00
Two-factor structure Factor 1 (family and significant other) Factor 2 (friends)  
  Factor 1 (family and significant other) 1.00 0.38  
  Factor 2 (friends)   1.00  
  1. KC Kaiser criterion and PA parallel analysis: both used for determining number of factors to be extracted. ***p < 0.001; Factor loadings ≥ 0.30 are presented; KMO Kaiser-Meyer-Olkin and is a measure of adequacy of sampling; χ2 = Bartlett’s sphericity test using chi-square; Principal axis factoring extraction; Promax with Kaiser normalization rotation; 5 iterations for rotation convergence; MSPSS = factor loadings from the original MSPSS study