Chapter 2 64 Table 3. Results of the hierarchical multiple regression analysis of the factors associated with need for recovery and listening effort Block Predictors p Need for recovery 1 Gender ns Age ns Educational level .02 Health status .04 Pace/amount of work <.01 Job variety ns Work pleasure <.01 2 Hearing status ns 3 Hearing status ns Hearing status x perceived workplace noise ns Listening effort 1 Gender ns Age ns Educational level ns Health status ns Pace/amount of work ns Job variety ns Work pleasure ns 2 Hearing status .02 3 Hearing status .03 Hearing status x perceived workplace noise ns Gender, age, educational level, health status, pace/amount of work, job variety, and work pleasure were entered as predictors in Block 1 and as control variables in Block 2. The results of the hierarchical multiple regression analysis are presented in Table 3. It shows that hearing status nor the interaction between hearing status and the subjective noise level were significantly associated with NFR. Hearing status was significantly associated with LE, but the interaction between hearing status and the subjective noise level was not. Regarding the outcome NFR, the change in explained variance was significant for the first block (R square change = .314, p < .01), but not for the second block (R square change = .000, p = .96) nor the third block (R square change = .001, p = .69). The percentage explained variance for all three blocks was 27 percent. For the outcome LE, the change in explained variance was significant when the second blockwas included (R square change = .07, p >.01), but not for the first block (R square change = .031, p = .74) nor the third block (R square change = .015 p = .14).Themodel
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