Table 3.

External validity with second-generation measures of negative symptoms.

	PANSS NSF-expressive composite score	PANSS NSF-experiential composite score
MAP-SR total	-0.248∗∗	-0.432∗∗∗
BNSS-expressive	0.670∗∗∗	0.560∗∗∗
BNSS-experiential	0.592∗∗∗	0.706∗∗∗
PANSS NSF-expressive composite	1	0.716∗∗∗
PANSS NSF-experiential composite	0.716∗∗∗	1
Cronbach’s alpha	0.847	0.860

MAP-SR, Motivation and Pleasure Scale—-Self report; BNSS-expressive, the expressive factor of the Brief Negative Symptom Scale. MAP-SR (n = 141), BNSS (n = 78). ^∗∗p < 0.01, ^∗∗∗p < 0.001.