Chapter 3 86 Table 3. Correlations and prediction intervals comparing the correlations found in this study and the correlations found in the previous study by Van der Hoek-Snieders et al. (2020) Previous study Current study Correlation Prediction interval Correlation Hypothesis confirmed? Need for recovery Feeling something should change .48 .27 ; .68 .46 Yes Subjective listening effort .53 .34 ; .72 .54 Yes General health condition .45 .23 ; .66 .33 Yes Personal adjustments -.46 -.71 ; -.20 -.37 Yes Subjective listening effort Feeling something should change .39 .16 ; .62 .46 Yes Binaural hearing impairment .32 .07 ; .56 .07 Yes Auditory work demands .41 .18 ; .63 .58 Yes Personal adjustments -.44 -.69 ; -.18 -.56 Yes Table 4 shows the mean scores and standard deviations of the questionnaire scores before and after the aural rehabilitation. Based on a sample size of 60, the smallest detectable change in NFR is 5.77. NFR decreased on average by 6.86. A significant difference was found for the variables NFR, LE, personal adjustments, SSQ speech, and SSQ spatial. No significant differences were found regarding the variables communication strategies, auditory work demands, and SSQ quality. Table 4. Paired t-tests of questionnaire scores before and after receiving aural rehabilitation (n = 50) Baseline (T0) Follow up (T1) Difference T1 - T0 t p Need for recoverya 51.89 (20.47) 45.03 (21.62) -6.86 (14.09) -3.34 <.01 Subjective listening effortb 9.90 (3.33) 8.30 (3.72) -1.60 (3.03) -3.73 <.01 Personal adjustmentsc 51.59 (12.87) 56.37 (13.66) 4.78 (7.68) 3.27 <.01 Communication strategiesd 68.17 (9.23) 69.36 (10.00) 1.19 (7.77) 0.99 .33 Auditory work demandse 29.38 (6.81) 30.10 (6.81) 0.72 (4.31) 1.18 .24 SSQ speechf 5.51 (1.73) 6.16 (1.78) 0.65 (1.39) 2.76 <.01 SSQ spatialf 4.46 (2.19) 5.16 (2.28) 0.70 (1.66) 2.56 .02 SSQ qualityf 6.57 (1.86) 6.91 (1.68) 0.34 (1.40) 1.46 .15 SSQ indicates Speech, Spatial, and Qualities of hearing scale. a Higher score indicates higher level of need for recovery. b Higher score indicates higher level of subjective listening effort. c Higher score indicates more adequate personal adjustments. d Higher score indicates more adequate communication strategies. e Higher score indicates higher auditory work demands. f Higher score indicates greater self-reported hearing ability.
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