Conservatism
According to Alan Ware, Belgium, Denmark, Finland, France, Greece, Iceland, Luxembourg, Netherlands, Norway, Sweden, Switzerland and the United Kingdom retained viable conservative parties into the 1980s. Ware said that Australia, Germany, Israel, Italy, Japan, Malta, New Zealand, Spain and the United States had no conservative parties, although they had either Christian democrats or liberals as major right-wing parties. Canada, Ireland and Portugal had right-wing political parties that defied categorization: the Progressive Conservative Party of Canada; Fianna Fáil, Fine Gael and Progressive Democrats in Ireland; and the Social Democratic Party of Portugal. Since then, the Swiss People's Party has moved to the extreme right and is no longer considered to be conservative.
Conservatism
According to psychologist Bob Altemeyer, individuals who are politically conservative tend to rank high in right-wing authoritarianism (RWA) on his RWA scale. This finding was echoed by Theodor Adorno. A study done on Israeli and Palestinian students in Israel found that RWA scores of right-wing party supporters were significantly higher than those of left-wing party supporters. However, a 2005 study by H. Michael Crowson and colleagues suggested a moderate gap between RWA and other conservative positions: "The results indicated that conservatism is not synonymous with RWA".