Psychometric Properties and Factor Analysis of Family Accommodation Scale For Obsessive Compulsive Disorder-Interviewer-Rated-Thai Version (FAS-T)

Figures & data

Table 1 Mean Score and Frequency of Each Item in FAS-T

Item	Mean±SD	Frequency of Endorsement N(%)					Endorsement with Score N(%)
		0	1	2	3	4
1. Providing reassurance	1.54±1.63	23 (46)	2 (4)	11 (22)	3 (6)	11 (22)	27 (54)
2. Watching the patient complete rituals	0.76±1.36	36 (72)	2 (4)	5 (10)	2 (4)	5 (10)	14 (28)
3. Waiting for the patient	0.84±1.36	34 (68)	2 (4)	6 (12)	4 (8)	4 (8)	16 (32)
4. Refraining from saying/doing things	0.96±1.53	33 (66)	3 (6)	5 (10)	1 (2)	8 (16)	17 (34)
5. Participating in compulsions	0.72±1.42	38 (67)	2 (4)	2 (4)	2 (4)	6 (12)	12 (24)
6. Facilitating compulsion	0.38±0.97	41 (82)	4 (8)	2 (4)	1 (2)	2 (4)	9 (18)
7. Facilitating avoidance	0.68±1.20	34 (68)	6 (12)	6 (12)	0 (0)	4 (8)	16 (32)
8. Tolerance of odd behaviors/household disruption	0.72±1.05	31 (62)	6 (12)	10 (20)	2 (4)	1 (2)	19 (38)
9. Helping the patient with tasks of daily living or simple decisions	0.56±1.22	39 (78)	3 (6)	3 (6)	1 (2)	4 (8)	11 (22)
10 Taking on patient’s responsibilities	0.32±0.77	40 (80)	6 (3)	3 (6)	0 (0)	1 (2)	10 (20)
11. Modifying your personal routine	0.42±0.79	36 (72)	9 (18)	3 (6)	2 (4)	0 (0)	14 (28)
12. Modifying the family routine	0.46±0.91	37 (74)	7 (14)	2 (4)	4 (2)	0 (0)	13 (26)

Table 2 The Cronbach’s Coefficient Alpha if Item Deleted of Items in Family Accommodation Scale

Item	Scale Mean if Item Deleted	Scale Variance if Item Deleted	Corrected Item-Total Correlation	Cronbach’s Alpha if Item Deleted
1. Providing reassurance	6.82	56.681	0.716	0.808
2. Watching the patient complete rituals	7.60	65.388	0.439	0.834
3. Waiting for the patient	7.52	66.989	0.363	0.840
4. Refraining from saying/doing things	7.40	59.184	0.657	0.814
5. Participating in compulsions	7.64	62.888	0.537	0.826
6. Facilitating compulsion	7.98	69.244	0.420	0.834
7. Facilitating avoidance	7.68	64.181	0.586	0.822
8. Tolerance of odd behaviors/household disruption	7.64	64.398	0.678	0.817
9.Helping the patient with tasks of daily living or simple decisions	7.80	66.408	0.457	0.831
10 Taking on patient’s responsibilities	8.04	73.590	0.209	0.844
11. Modifying your personal routine	7.94	69.486	0.522	0.830
12. Modifying the family routine	7.90	68.541	0.503	0.829

Table 3 Factor Loadings of Three-Factor Model Exploratory Factor Analysis with Oblique Rotations

Item	Factor 1	Factor 2	Factor 3
1. Providing reassurance	0.71	−0.59	0.18
2. Watching the patient complete rituals	0.65	−0.19	−0.31
3. Waiting for the patient	0.37	−0.47	−0.50
4. Refraining from saying/doing things	0.86	−0.28	0.07
5. Participating in compulsions	0.51	−0.54	0.35
6. Facilitating compulsion	0.56	−0.29	0.05
7. Facilitating avoidance	0.80	−0.29	−0.10
8. Tolerance of odd behaviors/household disruption	0.48	−0.83	0.14
9. Helping the patient with tasks of daily living or simple decisions	0.62	−0.17	0.48
10 Taking on patient’s responsibilities	0.10	−0.29	0.78
11. Modifying your personal routine	0.28	−0.84	0.18
12. Modifying the family routine	−0.22	−0.93	−0.04