Statistical methods 106 Social sciences 104 Statistics 47 History 22 Methodology 19 Computer programs 17 Regression analysis 17 more ... Statistical services 14 Population 13 Sampling (Statistics) 12 Time-series analysis 11 Economic conditions 10 Economics 10 Census 8 Mathematical models 8 Periodicals 8 Research 8 Correlation (Statistics) 7 Social surveys 7 Commercial statistics 6 Econometrics 6 Graphic methods 6 Psychometrics 6 Social conditions 6 Experimental design 5 Probabilities 5 Census undercounts 4 Mortality 4 Analysis of variance 3 Biometry 3 less ...