Table 13: SF-36 mental health scale Rasch analysis item statistics for six waves of data collection.

Wave 1Wave 2Wave 3
SF36 ITEM MEASUREMODEL S.E. PTMEA CORR.MEASUREMODEL S.E. PTMEA CORR.MEASUREMODEL S.E. PTMEA CORR

17:Q5A1.350.010.311.380.010.301.490.020.27
18:Q5B1.570.010.311.620.020.291.750.020.27
19:Q5C1.380.010.301.410.010.281.500.020.26
20:Q61.510.01-0.091.780.02-0.021.410.01-0.02
23:Q9A-0.030.010.17-0.060.010.22-0.120.010.27
24:Q9B-1.280.010.46-1.470.010.43-1.540.010.41
25:Q9C-1.840.010.45-2.040.010.40-2.080.020.40
26:Q9D0.210.010.200.300.010.180.300.010.26
27:Q9E-0.160.010.22-0.240.010.26-0.290.010.30
28:Q9F-1.250.010.46-1.330.010.39-1.320.010.40
29:Q9G-0.900.010.44-0.930.010.39-0.880.010.39
30:Q9H0.630.010.270.720.010.250.740.010.28
31:Q9I-0.550.010.37-0.500.010.31-0.420.010.31
32:Q10-0.650.010.28-0.650.010.22-0.550.010.19

Wave 4 Wave 5Wave 6
SF36 ITEM MEASUREMODEL S.E. PTMEA CORRMEASUREMODEL S.E. PTMEA CORRMEASUREMODEL S.E. PTMEA CORR.

17:Q5A1.470.020.281.480.020.301.510.020.29
18:Q5B1.760.020.281.770.020.301.810.030.32
19:Q5C1.510.020.271.510.020.281.530.020.28
20:Q61.190.010.041.010.020.030.960.020.05
23:Q9A-0.140.010.23-0.210.010.24-0.290.010.26
24:Q9B-1.520.010.40-1.490.020.40-1.470.020.37
25:Q9C-2.070.020.35-1.920.020.39-1.910.020.35
26:Q9D0.300.010.230.310.010.190.290.010.22
27:Q9E-0.340.010.27-0.410.010.27-0.530.010.29
28:Q9F-1.300.010.40-1.250.010.42-1.220.020.41
29:Q9G-0.800.010.39-0.750.010.44-0.720.010.43
30:Q9H0.750.010.290.690.010.230.690.020.27
31:Q9I-0.340.010.33-0.300.010.35-0.270.010.32
32:Q10-0.480.010.17-0.440.010.17-0.390.010.17

Note: MODEL S.E. = Model Standard Error; PTMEA CORR = Point Measure Correlation.