Idiographic analyses of motivation and related processes in participants with schizophrenia following a therapeutic intervention for negative symptoms

Table 3 Pre, post and follow-up scores on the traditional assessment scales and effect size coefficients for the change in the composite scores

		Pre T0	Post T2	Follow-up T3	ES T0-T2	ES T0-T3
2i-1	BNSS-Mot^a	1.79		1.07
	LARS-i	−27		−32
	LARS-p	−23		−18
	Motivation/Apathy	1.35		0.99		0.73
	S-QoL	66.34		71.70
	FROGS	70		86
	QoL/Functioning	3.75		4.58		0.37
2i-2	BNSS-Mot^a	3.43	2.29	3.5
	LARS-i	−11	−15	−23
	LARS-p	−17	−21	− 16
	Motivation/Apathy	2.63	1.89	2.43	1.40	0.15
	S-QoL	62.93	61.46	65.37
	FROGS	64	72	77
	QoL/Functioning	3.39	3.65	3.99	2.37	1.54
2i-4	BNSS-Mot	4^a	3.14^b
	LARS-p	8	−14
	Motivation/Apathy	3.89	2.49		4.34
	S-QoL	35.12
	FROGS	46	60

Note: BNSS-Mot Brief Negative Symptom Scale – Motivation (mean score); LARS Lille Apathy Rating Scale informant (i) and patient (p) (total scores); FROGS Functional Remission of General Schizophrenia (total score); S-QoL Schizophrenia Quality of Life (total score); italics composite variables; bold large effect sizes; ES effect size; maximum likelihood estimator, using pooled standard deviation as the denominator
^a BNSS Motivation average score of the two blinded evaluators
^b Participant 2i-4 was not filmed at T2. The BNSS Motivation was scored by one independent evaluator unaware of her score at baseline