“…Some studies of ambiguity tolerance deal with the relationship between AT and ethnocentrism or authoritarianism (O'Conner, 1952;Levitt, 1953;Budner, 1962;Ehrlich, 1965;Chapelle, 1983); some refer to AT and learners' rigidity or receptivity of change (MacDonald, 1970;McLain, 1993); some mention about AT and other variables, such as Field Dependence/ Independence (Chapelle & Roberts, 1986), or strategy use (Ely, 1989); some focuse on AT and second/foreign language success (Pimsleur et al, 1966;Naiman, 1975;MacDonald,1970;Chapelle, 1983;Chapelle & Roberts, 1986;Chapelle & Jamison, 1986;Ely, 1986, Chen, 1989. Subjects of many studies are university students, with an exception in Levitt's (1953), in which subjects are elementary school students, and in Naiman et al's (1975), in which subjects are high school students.…”