. Author manuscript; available in PMC: 2015 Nov 3.

Published in final edited form as: J Trauma Stress Disord Treat. 2014 Oct 28;4(1):10.4172/2324-8947.1000139. doi: 10.4172/2324-8947.1000139

Table 3.

Concurrent validity of MPSS-SR with CAPS at different cutoff scores across all follow-up time-points.

	26	27	28	29	30	Dichotomous Scoring
Sensitivity	91%	90%	89%	89%	88%	68%
Specificity	74%	75%	76%	77%	78%	92%
Positive Predictive Power	50%	51%	52%	53%	53%	71%
Negative Predictive Power	96%	96%	96%	96%	96%	91%
False Positive Rate	26%	25%	24%	23%	22%	8%
False Negative Rate	9%	10%	11%	11%	12%	32%
Overall Correct Classification	78%	78%	79%	80%	80%	86%
Kappa	0.504	0.509	0.525	0.528	0.531	0.608

Note: MPSS-SR : Modified Posttraumatic Symptom Scale - Self Report; CAPS : Clinician Administered PTSD Scale.