Table 5.

Treatment effects of classroom project characteristics from simple slopes analysis

Outcome	Mean	SE	95% Confidence Interval		p-value
Future civic engagement
Generation citizen	0.273	.151	−0.022	0.569	.070
Context
School	0.030	.237	−0.434	0.494	.060
Outside of school	0.341	.181	−0.015	0.697	.898
Content
Safety	0.764	.195	0.381	1.147	<.001
School environment	−0.001	.229	−0.451	0.448	.995
Social issue	−0.233	.265	−0.752	0.286	.379
Contact with DM
Easy/Moderate	0.337	.248	−0.178	0.852	.174
Difficult	0.114	.302	−0.484	0.759	.114
Civic self-efficacy
Generation Citizen	0.318	.138	0.047	0.588	.021
Context
School	0.183	.225	−0.259	0.624	.019
Outside of School	0.395	.169	0.065	0.726	.418
Content
Safety	0.563	.192	0.186	0.940	.003
School environment	0.095	.230	−0.356	0.547	.680
Social issue	0.008	.277	−0.538	0.553	.978
Contact with DM
Easy/Moderate	0.394	.199	−0.002	0.790	.048
Difficult	0.168	.249	−0.327	0.663	.499
Action civics knowledge
Generation Citizen	0.522	.144	0.239	0.805	<.001
Context
School	0.746	.233	0.289	1.202	.001
Outside of School	0.385	.177	0.038	0.732	.029
Content
Safety	0.675	.204	0.275	1.075	<.001
School environment	0.685	.237	0.220	1.149	.004
Social issue	−0.015	.270	−0.545	0.516	.957
Contact with DM
Easy/Moderate	0.778	.177	0.431	1.125	<.001
Difficult	0.030	.234	−0.433	0.492	.899
Local political knowledge
Generation Citizen	0.356	.212	−0.059	0.771	.093
Context
School	0.751	.318	0.128	1.374	.018
Outside of School	−0.011	.256	−0.512	0.491	.967
Content
Safety	0.495	.324	−0.140	1.131	.127
School environment	0.624	.349	−0.060	1.309	.074
Social issue	−0.053	.408	−0.853	0.748	.898
Contact with DM
Easy/Moderate	0.512	.302	−0.086	1.111	.090
Difficult	0.112	.385	−0.659	0.883	.772