The author compares three scales of social complexity (Naroll's Social Development Index, Freeman's Scale, and Marsh's Index of Differentiation) and determine whether they tend to measure the same developmental variable. The author's statistical comparisons illustrate that each scale applies the same standard in ranking societies

This study tests a broad hypothesis that alcohol is employed to relieve anxiety and feelings of powerlessness. Frequency of drunkenness and drunken brawling were associated with several variables, including supernatural beliefs, political systems, settlement patterns, and division of labor.

This study tests cross-cultural hypotheses that predict the variables that lead to drunkenness. Previous hypotheses are reviewed and retested and control tests attempt to ascertain the adequacy of the cross-cultural method.

This study investigates the relationship between agriculture and fixed settlement patterns. The authors intend to examine the effects of sampling strategies and Galton’s problem on empirical findings. Neither of these factors affected the statistical relationship between agriculture and mobility.

Authors explore the problem of data quality control, systematic error and spurious correlations possibly caused by systematic errors in global cross-cultural studies. They offer a solution (the use of control variables investigating potential sources of systematic error) and apply the technique to a cross-cultural study of the substantive correlates of societal organization and modes of marriage.