User experience and motivation with engineering design challenges in general chemistry laboratory

Table 5 Stepwise linear regression analyses predicting task value and self-confidence

Variable	B	SE	β	T	p	F	df	R² (adj.)
Task value
overall model						534.960	5	.524
(constant)	1.510	.310		4.868	.000
feel like an engineer	.936	.053	.334	17.792	.000
Satisfaction	.692	.047	.265	14.661	.000
collaboration	.631	.061	.199	10.287	.000
help from the teaching assistant	.345	.060	.088	5.739	.000
Difficulty	− .104	.036	− .042	− 2.864	.004
Self-confidence (base model)
overall model						154.861	8	.338
(constant)	2.364	.124		19.086	.000
Satisfaction	.128	.018	.150	7.026	.000
Difficulty	− .199	.015	− .244	− 13.306	.000
collaboration	.154	.024	.149	6.494	.000
help from the teaching assistant	.205	.023	.159	8.787	.000
feel like an engineer	.136	.020	.148	6.659	.000
Gender	− .168	.026	− .107	− 6.423	.000
URM status	− .118	.030	− .068	− 4.548	.000
Effort	− .034	.017	− .036	− 2.030	.042
Self-confidence (with moderators)
overall model						127.056	10	.344
(constant)	2.600	.140		18.614	.000
satisfaction	.127	.018	.148	6.956	.000
difficulty	− .199	.014	− .244	− 13.871	.000
collaboration	.122	.026	.118	4.701	.000
help from the teaching assistant	.206	.023	.160	8.889	.000
gender x effort	− .064	.025	− .135	− 2.564	.010
feel like an engineer	.085	.025	.092	3.409	.001
URM status	− .651	.162	− .369	− 4.030	.000
URM status x collaboration	.122	.038	.302	3.244	.001
gender x feel like an engineer	.109	.031	.288	3.539	.000
gender	− .405	.144	− .257	− 2.811	.005

The variables included are significant predictors. The variables task difficulty, effort, satisfaction, collaboration, help from teaching assistant and feel like and engineer were assessed in a continuous scale ranging from 1 to 5, with higher values indicative of more positive response. Binary codes were created for gender (Male = 0; Female = 1) and URM status (non-URM = 0; URM = 1). B = Unstandardized coefficient; SE = standard error; β = Standardized coefficient

ISSN: 2524-8502