Development of a new occupational balance-questionnaire: incorporating the perspectives of patients and healthy people in the design of a self-reported occupational balance outcome instrument

Table 3 Overall fit, item and fit statistics of the Rasch analyses for the occupational balance-questionnaire

Overall fit statistics	Chi-square p ≤ 0.01 35.15		Chi-square^redp ≤ 0.01 11.20	ẍ item fit residual (± SD) 0.54 (± 1.71)	ẍ item fit residual^red(± SD) 1.69, (± 0.89)
Item and fit statistics	Item statistics^a		Fit statistics^a
Components of items	Location (Location^red)	SE (SE^red)	Residual (Residual^red)	Chi-Square (Chi-square^red)	F-statistic (F-statistic^red)
Challenging and relaxing activities	0.216	0.084	3.395	12.665*	12.784*
	--	--	--	--	--
Activities with acknowledgement by the individual and by the sociocultural context	0.025	0.077	0.340	2.248	2.719
	(0.101)	(0.080)	(2.801)**	(0.267)	(0.048)
Involvement in stressful activities and fewer stressing activities	-0.397	0.078	0.082	2.527	3.211
	(-0.302)	(0.082)	(1.584)	(2.324)	(2.183)
Impact of health condition on activities	-0.156	0.073	0.213	1.241	1.750
	(-0.055)	(0.075)	(0.519)	(6.352)	(8.439)
Rest and sleep	-0.230	0.073	1.522	0.181	0.103
	(-0.141)	(0.076)	(2.276)	(0.447)	(0.126)
Variety of activities	0.302	0.075	0.502	1.023	0.489
	(0.397)	(0.077)	(1.264)	(1.815)	(1.383)
Adaptation of activities according to changed living conditions	0.240	0.073	-2.284	15.264*	27.360*
	--	--	--	--	--

^arounded to three decimals.
Location = Expressed in linear log-odds units (logits). Mean item location is zero with positive values representing more limitations of occupational balance.
^redwithout items on the components challenging and relaxing activities and ability to adapt activities, after item deletion.
SE = Standard error.
Residuals = summarize the deviation of observed from expected responses. Deviation from the recommended range of -2.5 to +2.5 indicating misfit are bold.
Chi-square = Chi-square values summarize the deviation of observe from expected responses across the three class intervals of people. Higher values indicate larger deviations.
F-statistics = F-statistics from one-way Analysis of variance of deviations from model expectation across the three class intervals of people.
*Bonferroni corrected statistically significant deviations across class intervals, indicating misfit (bold, Bonferroni adjusted probability level = .001429).
**Bonferroni corrected statistically significant deviations across class intervals, indicating misfit (bold, Bonferroni adjusted probability level = .002000).

ISSN: 1477-7525