1. A study in construct validity of the psychoanalytic concept of latent anxiety and a test of a projection distance hypothesis;Akutagawa,1956
2. The development of a scale to measure fear;Geer;Behav. Res. & Therapy,1965
3. The measurement of transitory anxiety;Krause;Psychol. Rev.,1961
4. Psychophysiological approaches to the evaluation of psychotherapeute process and outcome;Lacey,1959
5. Fear reduction and fear behavior: problems in treating a construct;Lang,1968