1Arnold, J.Affect in Language Learning [M]. Cambridge : Cambridge University Press, 1999.
2Duffy, G.& Roberts.Ambiguity Tolerance and Field Independence as Predictors of Proficiency in English as a Second Language [J].Language Learning, 1986 ( 36 ) : 27-35.
3Ehrman, M.E.Understanding Second Language Learning Difficulties[M].Thousand Oaks: Sage Publications, 1996.
4Ellis, R.The Study of Second Language Acquisition[M]. Beijing: Foreign Language Teaching and Research Press, 2000.
5Frenkel-Brnnswik, E.Intolerance of Ambiguity as an Emotional and Perceptual Personality Variable [J].Journal of Personality, 1994 ( 18 ) : 108-143.
6Horwitz, E.K., Horwitz, M.B.&Cope J.Foreign Language Classroom Anxiety[J], The Modern Language Journal, 1986 ( 70 ) : 125-132.
7MacIntyre, P.D.& Gardner, R.C.Language Anxiety: Its Relation to Other Anxieties and to Processing in Native and Second Languages[J].Langnage Learning, 1991 (41) 41: 513-534.
8McLain, D.L.The MSTAT-1 : A New Measure of an Individual' s Tolerance for Ambiguity [J]. Educational and Psychological Measurement, 1993 ( 53 ) : 183-189.
9Norton, R.W.Measurement of Ambiguity Tolerance [J]. Jourtml of Personality Assessment, 1975 ( 39 ) : 607-619.
2Michel J. Dugas,Patrick Gosselin,Robert Ladouceur. Intolerance of Uncertainty and Worry: Investigating Specificity in a Nonclinical Sample[J] 2001,Cognitive Therapy and Research(5):551~558