Demand characteristics and the Velten mood induction procedure.

Suggests that previous studies of the role of demand characteristics in the E. Velten (1968) mood induction procedure have not provided equivalent information and demands to both the experimental and demand characteristics groups. When these differences were corrected, the authors were unable to reject the hypothesis that the apparent effects of the mood induction were entirely due to demand characteristics. It is concluded that use of the induction procedure to manipulate mood experimentally or to test the relationship between cognition and mood is unwarranted. (6 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)