The psychometric properties of perfectionism scale and its relation to depression and anxiety

Figures & data

Table 1. Results of exploratory analysis of the (RPNPS) scale

Items	PP factor	NP factor
30	.81
25	.80
6	.79
18	.78
21	.77
3	.75
29	.69
24	.65
35	.58
23	.57
37	.56
9	.56
19	.54
14	.52
28	.51
31		.79
20		.78
27		.77
38		.75
8		.68
5		.68
26		.59
11		.58
26		.57
22		.56
7		.54
12		.53
17		.52
4		.50
13		.50
Eigenvalue	4.891	4.750
% of variance explained	24.21%	23.90%

Note: PP, positive perfectionism, NP, negative perfectionism.

Table 2. Correlation between depression and anxiety with positive perfectionism and negative perfectionism variables

Variables	A	PP	NP
D	.908**	−.889-**	.914**
A		−.917-**	.863**
PP			−.926-**

Note: D, depression, A, anxiety; PP, positive perfectionism, NP, negative perfectionism. df, 484, ** P < 0.01.

Table 3. Means, standard deviations, and numbers of the gender and specialization variables over dependent variables

Variables		Depression	Anxiety	Positive perfectionism	Negative perfectionism
Males N = 254	Mean	11.46	10.21	37.92	38.33
	Std. deviation	5.987	5.435	30.513	29.730
Females N = 233	Mean	11.67	10.23	40.02	36.01
	Std. deviation	7.425	6.703	31.102	31.615
Total N = 487	Mean	11.56	10.22	38.93	37.22
	Std. deviation	6.707	6.068	30.782	30.636
Arts N = 212	Mean	11.10	9.71	43.25	32.30
	Std. deviation	6.871	5.948	29.147	29.687
Sciences N = 275	Mean	11.92	10.61	35.59	41.01
	Std. deviation	6.568	6.142	31.635	30.870
Total N = 487	Mean	11.56	10.22	38.93	37.22
	Std. deviation	6.707	6.068	30.782	30.636

Table 4. A multivariate analysis of variance results of gender and specialization on dependent variables

Source	Dependent variable	Type III sum of squares	df	Mean square	F	Sig.	Eta squared
Corrected model	PP	40,054.191^a	3	13,351.397	15.338	.000	.087
	NP	49,031.761^b	3	16,343.920	19.390	.000	.107
	D	596.803^c	3	198.934	4.518	.004	.027
	A	277.891^d	3	92.630	2.539	.056	.016
Intercept	PP	772,133.300	1	772,133.300	887.001	.000	.647
	NP	592,560.947	1	592,560.947	703.010	.000	.593
	D	61,004.229	1	61,004.229	1385.610	.000	.742
	A	47,885.342	1	47,885.342	1312.664	.000	.731
Gender	PP	97.510	1	97.510	.112	.738	.000
	NP	124.867	1	124.867	.148	.700	.000
	D	39.123	1	39.123	.889	.346	.002
	A	9.471	1	9.471	.260	.611	.001
Specialization	PP	6349.415	1	6349.415	7.294**	.007	.015
	NP	8232.855	1	8232.855	9.767**	.002	.020
	D	81.693	1	81.693	1.856	.174	.004
	A	97.819	1	97.819	2.681	.102	.006
Gender * specialization	PP	32,865.195	1	32,865.195	37.754**	.000	.072
	NP	39,765.934	1	39,765.934	47.178**	.000	.089
	D	505.313	1	505.313	11.477**	.001	.023
	A	177.287	1	177.287	4.860*	.028	.010

Note: a. R² = .087 (Adjusted R² = .081), b. R² = .107 (Adjusted R² = .102), c. R² = .027 (Adjusted R² = .021), d. R² = .016 (Adjusted R² = .009); D, depression, A, anxiety; PP, positive perfectionism, NP, negative perfectionism. df = 1; ** P < 0.01, * P < 0.05.

Figure 1. Interaction of gender and specialization with positive perfectionism

Figure 2. Interaction of gender and specialization with negative perfectionism

Figure 3. Interaction of gender and specialization with depression

Figure 4. Interaction of gender and specialization with anxiety