Table 3 Regression Analysis step by step coefficients taking as a dependent variable the Teammates` perception of efficacy. Variable β R² t p Step1 .26 NR Task -.51 -4.76 .00 Step 2 .39 NR Task -.39 -3.80 .00 Valued Roles .38 3.73 .00 Step 3 .47 NR Task -.38 -3.89 .00 Valued Roles .32 3.21 .00 PR Social .29 3.10 .00 Step 4 .51 NR Task -.39 -4.18 .00 Valued Roles .28 2.93 .00 PR Social .25 2.65 .01 Self-efficacy .19 2.05 .04