Introduction In his seminal work Effectiveness and Efficiency, Archie Cochrane asked why, despite their enormous potential, randomized trials were much less widely used that they should be. At the time that he was writing, their geographical distribution was very uneven. He wrote ‘If some such index as the number of RCTs per 1,000 doctors per year for all the countries of the world were worked ...

According to a "parasite stress" hypothesis, authoritarian governments are more likely to emerge in regions characterized by a high prevalence of disease-causing pathogens. Recent cross-national evidence is consistent with this hypothesis, but there are inferential limitations associated with that evidence. We report two studies that address some of these limitations, and provide further tests ...

This report presents findings for the Intrinsic (IR) and Extrinsic (ER) religiousness scales from the Minnesota Study of Twins Reared Apart. The scales were shown to be internally consistent, sufficiently distinct from the scales of the California Psychological Inventory and the Multidimensional Personality Questionnaire and unrelated to a number of measures of response style to justify treatin...

This paper investigates the extent to which differences in people’s socio-political attitudes and behaviours are underpinned by individual characteristics. Two groups of volunteers: (a) an Iranian sample that have been resident in UK for less than two years, and (b) a British sample, took part in this study. A series of validated scales was used to examine differences in levels of empathy, theo...

This paper asserts that an understudied question in war research is the possibility of a relationship between militarism and male dominance. Several hypotheses proposed to explain a possible connection were tested using cross-cultural research methodology and a sample of non-industrialized societies (n=186). The hypothesis that war leads to increased male political participation because of thei...