1. Figures for Chapter 13 Assessing outcomes Dillon (2001) Hearing Aids

2. Figure 13.1. Data for one subject showing the aided speech performance (diamonds) and the aided performance that was predicted (solid line). Predictions were based on the insertion gain, the background noise present, and the unaided performance (dotted line). Source: Dillon (2001): Hearing Aids Predicting aided speech scores

3. Understanding my daughter on the telephone Talking with Bob and Ted in the bar at the club Hearing the news on television 1 2 3 4 5 3+ 4+ 4 3 = 3.7

4. Figure 13. 2 Proportion of patients who obtain less than, or equal to, (a) the COSI change score, and (b) the COSI final score. Almost always Half the time Most of the time Occasionally Hardly ever Much better Slightly better Better No better Worse Source: Dillon (2001): Hearing Aids COSI normative data