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) |