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Table 3 Model fit statistics for HLQ scales

From: Measurement properties of the Health Literacy Questionnaire (HLQ) among older adults who present to the emergency department after a fall: a Rasch analysis

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
  1. SD standard deviation, PSI person separation index, CI confidence interval
  2. Statistics beyond the pre-specified ideal values are noted in bold