Rasch component | Overall model fit | Item fit Mean (SD) | Person fit Mean (SD) | Internal consistency reliability (PSI) | Unidimensionality (% of significant t tests). CI shown where % of significant t tests >5% |
---|---|---|---|---|---|
Section one: scales of agreement (four response categories) | |||||
1) Feeling understood and supported by healthcare providers | χ2 = 27.80 | −2.26 | −0.92 | 0.78 | 2.31% |
p < 0.0125 | (0.94) | (1.16) | |||
2) Having sufficient information to manage my health | χ 2 = 58.10 | −2.20 | −0.81 | 0.75 | 3.70% |
p < 0.0125 | (2.51) | (1.13) | |||
3) Actively managing my health | χ 2 = 43.21 | −2.28 | −1.235 | 0.73 | 6.47% |
p < 0.01 | (1.99) | (1.81) | CI:0.04–0.09 | ||
4) Social support for health | χ 2 = 55.62 | −0.77 | −0.86 | 0.72 | 4.85% |
p < 0.01 | (2.51) | (1.69) | |||
5) Appraisal of health information | χ 2 = 22.16 | −0.80 | −0.81 | 0.79 | 6.00% |
p = 0.33 | (1.55) | (1.60) | CI:0.04–0.08 | ||
Section two: scales of capabilities (five response categories) | |||||
6) Ability to actively engage with healthcare providers | χ 2 = 27.77 | −2.20 | −1.00 | 0.74 | 3.46% |
p < 0.01 | (1.17) | (1.42) | |||
7) Navigating the healthcare system | χ 2 = 46.64 | −2.00 | −0.86 | 0.82 | 4.16% |
p < 0.0083 | (2.43) | (1.34) | |||
8) Ability to find good health information | χ 2 = 28.65 | −1.36 | −0.95 | 0.77 | 4.39% |
p = 0.02 | (0.80) | (1.42) | |||
9) Understanding health information well enough to know what to do | χ 2 = 18.58 | −2.03 | −0.94 | 0.72 | 5.31% |
p = 0.05 | (1.26) | (1.40) | CI:0.03–0.07 |