Statistical method used

Instance by year

Row

total

N (%)

2001 & 2002

N (%)

2003 & 2004

N (%)

2005 & 2006

N (%)

2007 & 2008

N (%)

2009 & 2010

N (%)

2011 & 2012

N (%)

2013 & 2014

N (%)

Descriptive

7

(53.8)

11

(78.6)

22

(59.5)

34

(60.7)

27

(60.0)

30

(50.8)

24

(53.3)

155

(67.6)

Regression analysis

1

(7.7)

1

(7.1)

6

(16.2)

7

(12.5)

3

(6.7)

11

(18.6)

7

(15.6)

36

(13.4)

Correlations

4

(36.4)

1

(7.1)

6

(16.2)

6

(10.7)

1

(2.2)

5

(8.5)

1

(2.2)

24

(8.9)

ANOVA

-

-

3

(8.1)

1

(1.8)

4

(8.9)

4

(6.8)

2

(4.4)

14

(5.2)

Cluster Analysis

-

-

-

-

2

(4.4)

1

(1.7)

2

(4.4)

5

(1.9)

Factor analysis

-

-

-

2

(3.6)

1

(2.2)

1

(1.7)

-

4

(1.5)

Aggregate analysis

-

-

-

1

(1.8)

-

3

(5.1)

-

4

(1.5)

Pearson Chi-Square

-

1

(7.1)

-

2

(3.6)

-

-

-

3

(1.1)

Cross-sectional analysis

-

-

-

-

-

1

(1.7)

2

(4.4)

3

(1.1)

Path Analysis

-

-

-

2

(3.6)

-

-

-

2

(0.7)

t-tests

-

-

-

-

1

(2.2)

-

1

(2.2)

2

(0.7)

ANCOVA

-

-

-

-

1

(2.2)

1

(1.7)

-

2

(0.7)

Robustness Checks

-

-

-

-

-

1

(1.7)

1

(2.2)

2

(0.7)

Time series analysis

-

-

-

-

-

-

2

(4.4)

2

(0.7)

Date-envelopment Analysis

1

(7.7)

-

-

-

-

-

-

1

(0.4)

Reliabilities

-

-

-

1

(1.8)

-

-

-

1

(0.4)

Related analysis

-

-

-

-

1

(2.2)

-

-

1

(0.4)

Discriminant analysis

-

-

-

-

1

(2.2)

-

-

1

(0.4)

Parallel analysis

-

-

-

-

1

(2.2)

-

-

1

(0.4)

Longitudinal Analysis

-

-

-

-

1

(2.2)

-

-

1

(0.4)

Structural Equation Modeling

-

-

-

-

1

(2.2)

-

-

1

(0.4)

Kolmogorov-Smirnov test

-

-

-

-

-

1

(1.7)

-

1

(0.4)

Principal component analysis

-

-

-

-

-

-

1

(2.2)

1

(0.4)

Pareto analysis

-

-

-

-

-

-

1

(2.2)

1

(0.4)

Panel data methods

-

-

-

-

-

-

1

(2.2)

1

(0.4)

Column total

13

(100)

14

(100)

37

(100)

56

(100)

45

(100)

59

(100)

45

(100)

269

(100)