Psychometric Evaluation of the Perceived Stress Scale in Multiple Sclerosis

Table 5

Convergent validity: correlations of PSS with PHQ9, PHQ-Anxiety, and SF8.

	PHQ9	PHQ-anxiety	SF8-physical	SF8-mental health
PSS14-Total	.371	.416	−.310	−.701
PSS14-Stress	.324	.461	−.246	−.654
PSS14-Coping	.351	.291	−.320	−.620
PSS10-Total	.378	.431	−.317	−.714
PSS10-Stress	.340	.460	−.268	−.672
PSS10-Coping	.369	.307	−.335	−.651
PSS4-Total	.368	.376	−.349	−.686
PSS4-Stress	.331	.413	−.328	−.633
PSS4-Coping	.351	.271	−.316	−.636

All correlations are significant at the P < .001 level. PSS: Perceived Stress Scale, PHQ: Patient Health Questionnaire, and SF: short form.