Student selection in higher education – the organisational performance dilemma

Figures & data

Table 1. Descriptive statistics of all selected variables.

Variable	Values	Arith. Mean	Min.	Max.	Std. dev.	No. of obs.	In %
DV: graduation
	graduation = 1					1,602	87.2
	dropout = 0					235	12.8
IV: group
	first selection = 1					1,596	86.9
	second selection = 0					241	13.1
IV: score procedure (centralised)	higher values indicate better testing performance	0	−8.04	14.41	4.52	1,837
IV: score recruitment test (centralised)	higher values indicate better testing performance	0	−18.33	24.67	7.65	1,837
IV: mathematics	15 points (“very good”) to 0 points (“insufficient”)	7.57	0	15	2.94	1,837
IV: English	15 points (“very good”) to 0 points (“insufficient”)	7.70	1	15	2.50	1,837
CV: gender
	female = 1					647	35.2
	male = 0					1,190	64.8
CV: age		23.30	18.72	40.02	3.57	1,837
CV: migration background
	yes = 1					209	11.4
	no = 0					1,628	88.6

Source: own dataset (DV = dependent variable, IV = independent variables, CV = control variable)

Table 2. Results of binary logistic regression.

Variables	Regression coeff.	Std. error	p-Value	Odds ratio, Exp(B)
group (0 = second selection)	0.012	0.243	.961	1.012
score overall procedure	0.046*	0.021	.031	1.047
group*recruitment testing score	0.043***	0.011	.001	1.044
grade mathematics	0.123***	0.027	.001	1.131
grade English	−0.015	0.031	.639	0.986
gender (0 = male)	0.316*	0.161	.050	1.372
age	−0.013	0.020	.521	0.987
migration background (0 = no)	−0.045	0.212	.831	0.956
constant	1.389*	0.608	.022	4.013
Nagelkerkes r-squared	0.065

Note: The dependent variable is student success (0 = dropout), and additional model statistics are: log likelihood = −670.041; AIC = 1358.083, BIC = 1407.726; omnibus-test chi-square = 64.946, df = 8, p < 0.001; Hosmer-Lemeshow-test chi-square = 5.353, df = 8, p = .719; * p < .05, ** p < .01, *** p < .001.

Table 3. Graduation and dropout rates in the first and second selection.

	1^st selection		2^nd selection		all
	n	in %	n	in %	n	in %
Graduation	1,401	88	201	83	1,602	87
Dropout	195	12	40	17	235	13
All	1,596	100	241	100	1,837	100

Source: own dataset