If I wanted to identify which variable is the strongest predictor of an outcome, which statistic should I look at in my SPSS Coefficients table?p-valueB-weight (unstandardised coefficient)beta-weight (standardised coefficient)t-statistic

Model Summary" Adjusted R Std. Error of Model R R Square Square the Estimate 490 240 220 2.60297 a. Predictors: (Constant), Hours spent sleeping, Hours spent procrastinating, Female (M = 0, F = 1) b. Dependent Variable: Stress Experienced ANOVA Sum of Model Squares df Mean Square F Sig. 1 Regression 247.747 3 82.582 12.188 .000b Residual 785.953 116 6.775 Total 1033.700 119 a. Dependent Variable: Stress Experienced b. Predictors: (Constant), Hours spent sleeping, Hours spent procrastinating, Female (M = 0, F = 1) Coefficients Standardized Unstandardized Coefficients Coefficients Correlations Model B Std. Error Beta Sig. Zero-order Partial Part (Constant) 4.612 735 6.273 000 Female (M = 0, F = 1) -.498 484 -.084 -1.031 305 -.013 -.095 -.083 Hours spent .190 .037 .418 5.122 .000 .420 .430 .415 procrastinating Hours spent sleeping -.497 .165 -.245 -3.014 003 -.258 -.270 -.244 a. Dependent Variable: Stress Level