Table 1.

Collective benefit step-wise regression results

	Model 1	Model 2	Model 3	Model 4
Intercept	0.00	0.00	0.00	0.00
	(0.08)	(0.07)	(0.07)	(0.05)
Individual Scores	$-0.04$	$-0.02$	0.00	0.07
	(0.08)	(0.07)	(0.07)	(0.05)
Team Score	$0.{33}^{\ast \ast \ast }$	$0.{33}^{\ast \ast \ast }$	$0.{30}^{\ast \ast \ast }$	0.02
	(0.08)	(0.07)	(0.07)	(0.06)
Selections	$0.{36}^{\ast \ast \ast }$	$0.{35}^{\ast \ast \ast }$	$0.{38}^{\ast \ast \ast }$	$0.{13}^{\ast }$
	(0.08)	(0.07)	(0.07)	(0.06)
Performance Similarities		$-0.{39}^{\ast \ast \ast }$	$-0.{39}^{\ast \ast \ast }$	$-0.{32}^{\ast \ast \ast }$
		(0.07)	(0.07)	(0.05)
Empathic Concern (mean)			0.03	0.02
			(0.07)	(0.05)
Emphatic Concern (difference)			$-0.11$	$-0.02$
			(0.07)	(0.06)
Personal Distress (mean)			$-0.14$	$-0.08$
			(0.07)	(0.05)
Personal Distress (difference)			$-0.{20}^{\ast \ast }$	$-0.08$
			(0.07)	(0.06)
Overlap				$-0.{65}^{\ast \ast \ast }$
				(0.07)
R${}^2$	.24	.39	.47	.71
Adj. R${}^2$	.22	.37	.44	.68
Pairs	124	124	124	124

Standardized regression weights are shown for each predictor along with the standard errors in brackets, separately for each regression step

${}^{\ast \ast \ast }p<.001$, ${}^{\ast \ast }p<.01$, ${}^{\ast }p<.05$