Statistical modelling and quantitative assessment of management reforms in higher education on the enhancement of student employability

Matching sample t test results of the control group

Test index	Test time	N	Mean	Standard deviation	t	p
Professional skills	Before the experiment	30	2.5	0.425	-2.675	0.012
	After the experiment	30	3.8	0.769
Core quality	Before the experiment	30	1.9	0.937	-1.324	0.000
	After the experiment	30	3.9	1.437
Occupational personality	Before the experiment	30	2.6	1.024	-3.861	0.010
	After the experiment	30	4.1	1.543
Occupational potential	Before the experiment	30	2.5	0.826	-2.963	0.008
	After the experiment	30	3.9	1.428
Leadership quality	Before the experiment	30	2.2	0.743	-4.125	0.000
	After the experiment	30	4.2	1.541
Team quality	Before the experiment	30	2.5	1.237	-4.358	0.002
	After the experiment	30	4.1	1.414

Correlation analysis results

	y	y1	y2	y3	y4	y5	y6
x	0.262**	0.268**	0.219**	0.246**	0.291**	0.257**	0.162**
x1	0.192**	0.259**	0.153**	0.249**	0.191**	0.277**	0.186**
x2	0.201**	0.236**	0.197**	0.313**	0.231**	0.162**	0.149**
x3	0.257**	0.181**	0.135**	0.215**	0.226**	0.264**	0.197**
x4	0.237**	0.346**	0.184**	0.165**	0.165**	0.179**	0.156**
x5	0.254**	0.157**	0.176**	0.144**	0.264**	0.235**	0.125**
x6	0.174**	0.226**	0.183**	0.129**	0.279**	0.202**	0.137**
x7	0.213**	0.246**	0.158**	0.145**	0.218**	0.206**	0.128**
x8	0.173**	0.218**	0.155**	0.166**	0.229**	0.111**	0.288**

Multiple step-up regression analysis results

	y1	y2	y3	y4	y5	y6
x1						0.201***
x2	0.132***	0.174***	0.196***	0.415***		0.083***
x3	0.261***	0.225*		0.473*	0.212***
x4		0.313*	1.135***			0.179**
x5				0.326*
x6	0.163*	0.284**			0.172**
x7	-0.165**			-0.668***	-0.121*	-0.171***
x8	0.167**			0.434*	0.271***	0.088**
Constants	42.357	55.247	56.761	114.275	36.241	20.437
Adjusted R2	0.081	0.064	0.124	0.066	0.062	0.074
Sample size	2735

Descriptive statistics of samples (N=2735)

Variable	Classification	Number	Percentage
Gender	Male	1083	39.6%
	Female	1652	60.4%
School level	Ordinary university	1841	67.3%
	“211” university	479	17.5%
	“985” university	415	15.2%
Hometown	City	1392	50.9%
	Countryside	1343	49.1%
School area	Northwest China	416	15.2%
	Northeast China	222	8.1%
	North China	353	12.9%
	Central China	678	24.8%
	East China	257	9.4%
	South China	429	15.7%
	Southwest China	380	13.9%
Majors	Polytechnic	358	13.1%
	Finance	351	12.8%
	Management	385	14.1%
	Literary history	307	11.2%
	Medicine	339	12.4%
	Agronomy	344	12.6%
	Art	322	11.8%
	Military	329	12.0%
Total		2735	100%

Independent sample t test results after the experiment

Test index	Group	N	Mean	Standard deviation	t	p
Professional skills	Experimental group	30	3.8	0.769	1.032	0.028
	Control group	30	2.9	0.647
Core quality	Experimental group	30	3.9	1.437	0.574	0.035
	Control group	30	3.1	1.246
Occupational personality	Experimental group	30	4.1	1.543	1.144	0.024
	Control group	30	3.2	1.462
Occupational potential	Experimental group	30	3.9	1.428	2.352	0.041
	Control group	30	3.4	1.573
Leadership quality	Experimental group	30	4.2	1.541	2.146	0.009
	Control group	30	2.9	1.461
Team quality	Experimental group	30	4.1	1.414	1.611	0.013
	Control group	30	3.1	1.824

Regression analysis results

	B	β	t	P	R	R2	F
Constants	28.359		40.813	0.000
x	0.019	0.077	2.641	0.014	0.077	0.006	7.645*

The results of the analysis of the factors of employment ability

Classification	Dimension	Cronbach’s α coefficient	Problem number
Influencing factor	Target strategy	0.778	3
	Professional setting	0.805	3
	Evaluation incentive	0.857	3
	Campus culture	0.814	3
	School cooperation	0.806	3
	Innovative entrepreneurship	0.829	3
	Teaching ability	0.874	3
	Career guidance	0.897	3

Independent sample t test results before the experiment

Test index	Group	N	Mean	Standard deviation	t	p
Professional skills	Experimental group	30	2.5	0.425	0.124	0.875
	Control group	30	2.4	0.431
Core quality	Experimental group	30	1.9	0.937	-0.132	0.881
	Control group	30	2.1	0.958
Occupational personality	Experimental group	30	2.6	1.024	0.758	0.614
	Control group	30	2.4	1.135
Occupational potential	Experimental group	30	2.5	0.826	1.526	0.208
	Control group	30	2.6	0.839
Leadership quality	Experimental group	30	2.2	0.743	0.094	0.957
	Control group	30	2.2	0.752
Team quality	Experimental group	30	2.5	1.237	-1.155	0.413
	Control group	30	2.3	1.305

The results of the analysis of the reliability of the employment ability self-rating scale

Classification	Dimension	Cronbach’s α coefficient	Problem number
Self-rating scale	Professional skills	0.912	6
	Core quality	0.863	6
	Occupational personality	0.807	5
	Occupational potential	0.793	6
	Leadership quality	0.826	5
	Team quality	0.738	5