Psychometric Testing of the Japanese Version of the Daily Record of Severity of Problems Among Japanese Women

Figures & data

Table 1 Test–Retest Intraclass Correlation Coefficients of DRSP Total Scores and Items (N=324)*

	Mid-Follicular Phase Day 9 vs Day 10	Late Luteal Phase Day −2 vs Day −1	Change Late Luteal-Mid Follicular
Total score	0.87	0.89	0.84
Negative mood score	0.81	0.85	0.81
1a	0.69	0.76	0.65
1b	0.68	0.84	0.77
1c	0.71	0.78	0.70
2	0.79	0.73	0.66
3a	0.77	0.77	0.74
3b	0.75	0.80	0.74
4a	0.79	0.74	0.70
4b	0.68	0.76	0.67
5	0.72	0.78	0.68
6	0.80	0.74	0.67
7	0.71	0.72	0.58
8a	0.73	0.79	0.70
8b	0.74	0.82	0.73
9a	0.70	0.77	0.65
9b	0.76	0.75	0.63
10a	0.69	0.83	0.74
10b	0.58	0.73	0.63
11a	0.88	0.84	0.82
11b	0.85	0.81	0.79
11c	0.52	0.70	0.56
11d	0.75	0.84	0.70

Notes: 1a, depressed/sad/blue; 1b, hopeless; 1c, worthless/guilty; 2, anxious/tense/on edge; 3a, mood swings; 3b, sensitive to rejection; 4a, anger/irritability; 4b, conflict/problems; 5, less interest; 6, difficulty concentrating; 7, lethargic/tired/fatigued; 8a, increased appetite; 8b, crave specific foods; 9a, sleep more; 9b, trouble sleeping; 10a, overwhelmed, cannot cope; 10b, out of control; 11a, breast tenderness; 11b, breast swelling/“bloated;” 11c, headache; 11d, joint/muscle pain. *All P < 0.001.

Table 2 Internal Consistency (Cronbach’s Alpha) for the Summary Scores of DRSP (N=324)

	Luteal Phase Score	Follicular Phase Score	Luteal Phase Score Minus Follicular Phase Score
Total score	0.97	0.98	0.96
Negative mood score	0.97	0.97	0.97
Factor 1: Mood	0.98	0.98	0.98
Factor 2: Behavior/Physical	0.87	0.91	0.86

Abbreviation: DRSP, Daily Record of Severity of Problems.

Table 3 Factor Coefficients of DRSP After Promax Rotation (N=324)

	Factor 1 (Mood)	Factor 2 (Behavior/Physical)
1c	0.94	−0.03
3b	0.93	0.00
3a	0.93	0.00
1a	0.92	0.00
1b	0.92	−0.04
4b	0.91	−0.02
10a	0.90	0.02
2	0.88	0.03
10b	0.79	0.10
5	0.78	0.07
4a	0.78	0.17
7	0.69	0.28
6	0.68	0.28
11b	−0.10	0.91
11a	−0.17	0.84
8a	0.19	0.64
8b	0.26	0.54
9a	0.36	0.52
11d	0.18	0.51
9b	0.38	0.44
11c	0.28	0.38
Eigenvalue	13.01	1.66
% of variance explained	59.15	37.44
Correlation between factors
Factor 1	1.00
Factor 2	0.57	1.00

Notes: Value above 0.3 is expressed in bold. 1a, depressed/sad/blue; 1b, hopeless; 1c, worthless/guilty; 2, anxious/tense/on edge; 3a, mood swings; 3b, sensitive to rejection; 4a, anger/irritability; 4b, conflict/problems; 5, less interest; 6, difficulty concentrating; 7, lethargic/tired/fatigued; 8a, increased appetite; 8b, crave specific foods; 9a, sleep more; 9b, trouble sleeping; 10a, overwhelmed, cannot cope; 10b, out of control; 11a, breast tenderness; 11b, breast swelling/“bloated;” 11c, headache; 11d, joint/muscle pain.

Table 4 Goodness-of-Fit Summary of the DRSP (Two-Factor Model) (N=324)

Model	χ^2 (df)	χ^2/df	GFI	TLI	CFI	RMSEA (90% CI)	SRMR	AIC
Model 1	748.59 (175)	4.28	0.819	0.911	0.926	0.101 (0.093–0.108)	0.046	860.59
Model 2	603.41 (172)	3.51	0.850	0.932	0.944	0.088 (0.081–0.096)	0.048	721.41

Notes: Model 1, two-factor (8 items + 13 items + 13 error covariance); Model 2, two-factor (13 items + 8 items + 16 error covariance).

Abbreviations: DRSP, Daily Record of Severity of Problems; χ², chi-square; df, degrees of freedom; GFI, goodness-of-fit index; TLI, Tucker–Lewis index; CFI, comparative fit index; RMSEA, root mean square residual error of approximation; CI, confidence interval; SRMR, standardized root mean square residual; AIC, Akaike’s information.

Table 5 Correlation Coefficients for the DRSP and the PSQ (N=324)

	PSQ Total Score Spearman’s r
Total score	0.42*
Negative mood score	0.39*
Factor 1: Mood	0.41*
Factor 2: Behavior/Physical	0.35*

Note: *P < 0.0001.

Abbreviations: DRSP, Daily Record of Severity of Problems; PSQ, Premenstrual Symptoms Questionnaire.