A Rasch analysis of the Person-Centred Climate Questionnaire – staff version

Table 3 Summary fit statistics (scales)

Analysis	# items	Chi square		Item residual		Person residual		Reliability		Unidimensional (% sig t-tests)
Analysis	# items	Value	p	Mean	s.d.	Mean	s.d.	PSI	α^a	Unidimensional (% sig t-tests)
Subscale 1: A Climate of Safety
Initial	5	52.99	< 0.001	0.068	2.483	−0.378	0.997	0.70	0.82	8.33%
Final	4	26.11	0.162	0.193	1.541	−0.408	0.994	0.60	0.76	2.90%
Validation	4	23.39	0.104	0.260	1.572	−0.307	0.920	0.52	0.78	2.32%
Subscale 2: A Climate of Everydayness
Initial	5	41.62	0.020	−0.303	2.041	−0.466	1.094	0.82	0.86	6.94%
Final	4	21.01	0.396	0.099	1.234	−0.396	0.998	0.76	0.81	3.18%
Validation	4	30.07	0.068	0.288	1.135	−0.404	1.008	0.74	0.81	2.04%
Subscale 3: A Climate of Community
Initial/Final	4	26.23	0.158	−0.139	1.260	−0.316	0.757	0.59	0.84	3.47%
Validation	4	25.61	0.060	0.027	1.168	−0.272	0.738	0.55	0.83	1.73%
Summary Scale
Initial	12	77.80	0.061	−0.155	1.540	−0.345	1.127	0.85	0.90	9.17%
Subtests	12	17.44	0.293	−0.302	0.728	−0.350	0.947	0.76	0.81	2.66%
Validation	12	21.56	0.120	−0.358	1.224	−0.408	0.880	0.71	0.79	1.61%
Ideal values	–	0	< 0.01	0	< 1.4	0	< 1.4	> 0.70	> 0.70	< 5%

sd standard deviation
^aCronbach alpha is only available for participants providing complete responses (and hence is for a smaller sample than the PSI)