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Table 9 Conversation table - Cognitive domain (3 items)—raw summed scores to predicted Rasch person scores for SF-HDQ cognitive domain

From: Developing a short-form version of the HIV Disability Questionnaire (SF-HDQ) for use in clinical practice: a Rasch analysis

Cognitive domain (3 items)
Raw summed score—total
Range: 0–12
Model predicted person score (location) Model predicted person score (0–100 scale)
0 − 5.086 0
1 − 4.038 11
2 − 3.069 20
3 − 2.175 28
4 − 1.367 35
5 − 0.675 42
6 − 0.036 48
7 0.601 54
8 1.286 61
9 2.083 68
10 3.013 77
11 4.156 87
12 5.560 100