Table 3.

Regression models for predicting study outcome (zOutcomeOverall): Effect of demographic factors, only students enrolled by entrance test^a

	beta	sig.	R	R change	p(F) change
Model 1Only PEA			.009	.009	.010
zEduAttain	.093	<.001
Model 2 HAM-Nat added to model 1
zEduAttain	.217	<.001	.051	.042	<.001
zHAMNat	.242
Model 3 Interaction added to model 2			.056	.014	.148
zEduAttain	.206	<.001
zHAMNat	.251	<.001
zHAMNat*zEduAttain	−.050	.163
MultipleAttempts1	−.054	.149
Model 4 Gender added to model 3			.059	.003	.331
zEduAttain	.211	<.001
zHAMNat	.279	<.001
zHAMNat*zEduAttain	−.060	.105
MultipleAttempts1	−.051	.170
MaleGender1	.043	.245
MaleGender1*zHAMNat	−.052	.309
Model 5 Demographic factors added to model 4			.084	.025	.003
zEduAttain	.232	<.001
zHAMNat	.306	<.001		.
zHAMNat*zEduAttain	−.061	.099
MultipleAttempts1	−.031	.409
MaleGender1	.042	.247
MaleGender1*zHAMNat	−.065	.196
AgeLow1	−.008	.835
NationalityGerman1	.017	.644
FirstLanguageGerman1	.092	.039
ParentsBothGermanBorn1	.067	.124
ParentsBothAcademic1	.024	.523
ParentIsMedicalProfess1	.032	.392
Model 6 Federal state added to model 3			.072	.016	.043
zEduAttain	.233	<.001
zHAMNat	.249	<.001
zHAMNat*zEduAttain	−.058	.105
MultipleAttempts1	−.046	.209
Abitur grade from Schleswig-Holsteinb	.071	.047
Abitur grade from Lower Saxonyb	.099	.008		.
Abitur grade from North Rhine-Westphaliab	.024	.518
Abitur grade from Baden-Württembergb	.043	.238

^aSample size for all models is n = 761 instead of n = 794 due to missing values in zOutcomeOverall, zEduAttain, and variables of the sociodemographic questionnaire

^bReference state is Hamburg