Replicating the majority finding from prior related studies of European countries, regional IQ estimates and suicide rates in Italy were positively correlated; the association was retained with application of controls for regional affluence. Directions for further inquiry into aggregate-level associations of cognitive-ability indicators and suicide risk within nations are discussed.
FeliceE. (2007) I divari regionale in Italia sulla base degli indicatori sociale (1871–2001). Revista di Politica Economico, 5, 359–405.
3.
KerkhofA., & KunstA. (1994) A European perspective on suicidal behaviour. In JenkinsR.GriffithsS.WylieI.HawtonK.MorganG., & TyleeA. (Eds.), The prevention of suicide: a conference organised by the Department of Health, Faculty of Public Health Medicine, Royal College of General Practitioners and the Royal College of Psychiatrists. London: Her Majesty's Stationery (HMSO). Pp. 22–33.
4.
LesterD. (1993) Intelligence and suicide in France: an ecological study. Psychological Reports, 73, 1226.
5.
LesterD. (1995) Intelligence and suicide in Ireland and the United Kingdom. Psychological Reports, 77, 122.
6.
LynnR. (in press) In Italy, north-south differences in IQ predict differences in income, education, infant mortality, stature, and literacy. Intelligence. DOI:10.1016/j.intell.2009.07.004.
7.
LynnR., & MikkJ. (2007) National differences in intelligence and educational attainment. Intelligence, 35, 115–121.
8.
Organisation for Economic Co-operation and Development. (2007) PISA 2006 competencies for tomorrow's world. Paris: Author.
9.
PretiA. (1998) The influence of climate on suicidal behaviour in Italy. Psychiatry Research, 78, 9–19.
10.
VoracekM. (2004) National intelligence and suicide rate: an ecological study of 85 countries. Personality and Individual Differences, 37, 543–553.
11.
VoracekM. (2005a) National intelligence, suicide rate in the elderly, and a threshold intelligence for suicidality: an ecological study of 48 Eurasian countries. Journal of Biosocial Science, 37, 721–740.
12.
VoracekM. (2005b) The social ecology of intelligence and suicide in Belarus. Journal of Social Psychology, 145, 613–617.
13.
VoracekM. (2006a) Educational attainment, intelligence, interstate migration, and suicide rates in the United States: rejoinder to Abel and Kruger (2005). Psychological Reports, 98, 608–610.
14.
VoracekM. (2006b) Regional intelligence and suicide rate in Denmark. Psychological Reports, 98, 671–674.
15.
VoracekM. (2006c) Regional intelligence and suicide rate in Germany. Perceptual and Motor Skills, 103, 639–642.
16.
VoracekM. (2006d) Smart and suicidal? The social ecology of intelligence and suicide in Austria. Death Studies, 30, 471–485.
17.
VoracekM. (2006e) Social ecology of intelligence and suicide in the United States. Perceptual and Motor Skills, 102, 767–775.
18.
VoracekM. (2007a) Early 20th century social ecology of U.S. state IQ and suicide rates: evidence from the Army Alpha and Beta Intelligence Test data of Yerkes (1921). Social Behavior and Personality, 35, 1027–1030.
19.
VoracekM. (2007b) Evidence for a positive ecological correlation of regional intelligence and suicide mortality in the United States during the early 20th century. Perceptual and Motor Skills, 105, 391–402.
20.
VoracekM. (2007c) Regional intelligence and suicide rate: new data for Australia and a synthesis of research. Perceptual and Motor Skills, 105, 191–196.
21.
VoracekM. (2007d) State IQ and suicide rates in the United States. Perceptual and Motor Skills, 105, 102–106.
22.
VoracekM. (2007e) The nexus of suicide prevalence, helping behavior, pace of life, affluence, and intelligence: contrary results from comparisons across nations and within the United States. Perceptual and Motor Skills, 105, 1119–1126.
23.
VoracekM. (2008) State IQ and elderly suicide rates in the United States. Psychological Reports, 102, 601–602.
24.
VoracekM.ManningJ. T., & DresslerS. G. (2007) Repeatability and interobserver error of digit ratio (2D:4D) measurements made by experts. American Journal of Human Biology, 19, 142–146.