|Psychologists per 1.000.000 (2)||Members of national organisations (1)||1990||Psychologists1_1990||42||Zimbardo 1995|
1) Members of International Union of PsYgologocal Science (IUPSYS) are national organizations of professional psychologists. These national organizations are often unions of different organizations, typically separate organizations of scientists and practicioners. This mix of national organizations differs much across nations and time. Still another problem is that the definition of what a 'psychologists' is differs across countries. These data are therefore not very precise.
2) Population in countries per year taken from other sources
Psychologists working in mental health; see topic Health care
Expenses for mental health in % total health budget: topic Health Expenditures
States of Nations is an inventory of country characteristics. It is part of the World Database of Happiness
Keywords added: Cross-national, Professionalisation, Employment, Psychology