1. BLOCK, J. 1965. The challenge of response sets. New York: Appleton-Century-Crofts.
2. EDWARDS, A. L. 1957. The social disirability variable in personality assessment and research. New York: Dryden.
3. GOUGH, H. G. 1957. California Psychological Inventory: Manual. Palo Alto, California: Consulting Psychologists Press, Inc.
4. GUILFORD, J. P. 1954. Psychometric methods. New York: McGraw-Hill.
5. HAERTZEN, C. A. 1966. Changes in correlation between responses to items of the Addiction Research Center Inventory produced by LSD-25. J. of Psychopharmacology, 1, 27–36.