AmselA.The role of frustrative nonreward in noncontinuous reward situations. Psychol. Bull., 1958, 55, 102–119.
2.
CapaldiE. J.WynnW. M.TurnerE.Decremental and facilitative effects in the straight alley runway under partial reinforcement.). comp. physiol. Psychol., in press.
3.
EdwardsA. L.Experimental design in psychological research. New York: Rhinehart, 1960.
4.
FergusonG. A.Statistical analysis in psychology and education. New York: McGraw-Hill, 1959.
5.
GoodrichK. P.Performance in different segments of an instrumental response chain as a function of reinforcement schedule. J. exp. Psychol., 1959, 57, 57–64.
6.
McCainG. M.Discrimination reversal under conditions of partial reinforcement overlearning and changed schedules of reinforcement. Unpublished doctoral dissertation, Univer. of Texas, 1960.
7.
SpenceK. W.Behavior theory and learning. Englewood Cliffs: Prentice-Hall, 1960.
8.
WelchB. L.The significance of the differences between two means when the population variances are unequal. Biometrika, 1938, 29, 350–362.
