Abstract

References
1.
Aitken
R C B
. (1969 ) Proc. roy. Soc. Med.
62 , 989 .
2.
Bandura
A
. (1969 ) Principles of Behaviour Modification . New York.
3.
Baum
M
. (1966 ) Psychol. Rep.
18 , 19 .
4.
Cooper
J
. (1970 ) Psychol. Med.
1 , 48 .
5.
Cooper
J E
Gelder
M G
Marks
I M
. (1965 ) Brit. med. J.
i , 1222 .
6.
Janet
P
. (1925 ) Psychological Healing . London & New York; Vol. 2.
7.
Kringlen
E
. (1965 ) Brit. J. Psychiat.
111 , 709 .
8.
Lewis
A
. (1936 ) Proc. roy. Soc. Med.
29 , 325 .
9.
Maier
N R F
. (1949 ) Frustration: The Study of Behaviour Without Goal . New York.
10.
Metzner
R
. (1963 ) Behaviour Res. Ther.
1 , 231 .
11.
Meyer
V
. (1966 ) Behaviour Res. Ther.
4 , 273 .
12.
Rachman
S
Hodgson
R
Marzillier
J
. (1970 ) Behaviour Res. Ther.
8 , 385 .
13.
Stampfl
T G
Levis
D J
. (1967 ) J. abnorm. Psychol.
72 , 496 .
14.
Stampfl
T G
Levis
D J
. (1968 ) Behaviour Res. Ther.
6 , 31 .
15.
Walker
V J
Beech
H R
. (1969 ) Brit. J. Psychiat.
115 , 1261 .
