Abstract
References
1.
Barber T.X.
Pitfalls in Human Research. Oxford : Pergamon Press, 1976 .
2.
Coolican H.
Research Methods and Statistics in Psychology. London : Hodder & Stoughton, 1990 .
3.
Rotter J.B.
Generalized expectancies for internal versus external control of reinforcement. Psychol Monogr 1966 ; 80 : no. 609.
4.
Franklin R.D.
,
Allison D.B.
,
Gorman B.S.
Design and Analysis of Single Case Research. Mahwah, NJ : Lawrence Erlbaum, 1997 .
5.
Harrington A.
The Placebo Effect. Cambridge : Harvard University Press, 1997 .