Table 2.

Comparisons of fit indices of different AR-PAID factor solutions (N = 200).

Factor solution models	Factors (items included)	Goodness-of-Fit indices
		DF	X2	CMIN/DF	RMSEA	CFI	TLI	SRMR
One-Factor (13)	Problem areas in diabetes (items 1–20)	164	714.9**	4.36	0.127	0.972	0.969	0.078
Two-Factor (24)	• Diabetes distress (15 items): 1–14, 19 • Lack of support (5 items): 15–18, 20	164	678.4**	4.14	0.123	0.974	0.971	0.077
Three-Factor (22)	• Emotional problems (15 items): 3, 6–10, 12–14, 16, 19, 20 • Treatment problems (2 items): 1, 2 • Lack of support (3 items): 15, 17, 18	164	481.0**	2.93	0.097	0.984	0.982	0.059
Four-Factor (19)	• Emotional problems (12 items): 3, 6–10, 12–14, 16, 19-20 • Treatment problems (3 items): 1, 2, 15 • Food-related problems (3 items): 4, 5, 11 • Lack of support (2 items): 17, 18	164	391.1**	2.38	0.083	0.988	0.987	0.059
Revised four-factor (28)	• Emotional problems (12 items): 3, 6–10, 12-14, 16, 19–20 • Treatment problems (2 items): 1, 2 • Food problems (3 items): 4, 5, 11 • Lack of support (3 items): 15, 17, 18	164	371.2**	2.26	0.079	0.990	0.988	0.057

AR-PAID, Arabic version of the Problem Areas in Diabetes; CMIN/DF, ratio of chi-square [χ²] value to the degrees of freedom [df] (good if CMIN/DF <3); CFI, comparative fit index (good fit ≥0.90); TLI, Tucker Lewis Index (good if ≥ 0.90); SRMR, standardized root mean square residual (good fit ≤ 0.08); RMSEA, root mean square error of approximation (acceptable fit ≤ 0.08).

^**Statistically significant p (<0.001).