.258, po.01; intrinsic valence: .408, po.01). A series of regressions were performed to further examine the sup-pressor effect ( Table 6). Darlington (1968) defined a negatively suppressed variable as a variable that has a positive correlation with the dependent variable but has negative beta weights in a regression equation. Extrinsic instrumentality was positively correlated with work moti-vation (.193, po.01), but it showed a negative beta weight (b ¼ _.064) in the regression equation (1). When extrinsic instrumentality was only the variable regressed to work motivation, regression equation (2) showed a positive beta weight (b ¼ .108). Regression equations (3)–(6) were then run with each independent variable with extrinsic instru-mentality to identify which was a suppressor ( Cohen and Cohen, 1983). In regression equation (3), extrinsic instru-mentality showed a negative beta weight (b ¼ _.001) with intrinsic instrumentality, which indicated that intrinsic instrumentality was a suppressor. Intrinsic instrumentality acted as a suppressor, suppressing the effect of extrinsic