Although responses are sometimes easy to predict, at other times responding seems highly
variable, unpredictable, or even random. The inability to predict is generally attributed to …

This study asked whether response sequences generated by moderately depressed
students are more repetitive than those generated by nondepressed students and whether …

Many recent nonlaboratory‐based quantitative analyses of behavior have relied on archival
competitive sporting data. However, the ratio‐based reinforcement schedules in most …

In two experiments, the behavioral effects of different response-feedback contingencies
were examined with a task requiring human subjects to repeatedly type three-key …

If high levels of variability are initially trained, responding remains variable even if the
criterion for variability is eliminated. This effect, reported in college students, could have …

Dois experimentos investigaram, com estudantes universitários, a variabilidade aprendida.
No Experimento 1, quatro grupos (n= 5) foram submetidos a dois esquemas de …

In 5 experiments, the author examined rats' sensitivity to the molar feedback function relating
response rate to reinforcement rate on schedules of reinforcement. These studies …

Four rats' choices between two levers were differentially reinforced using a runs‐test
algorithm. On each trial, a runs‐test score was calculated based on the last 20 choices. In …

Experimental studies in Behavior Analysis have consistently demonstrated the effect of
reinforcement contingencies on the increase in behavioral variability in nonhumans and …

O objetivo desse trabalho foi (1) comparar a variação comportamental controlada por duas
diferentes contingências de reforçamento positivo (LAG e RDF),(2) observar se a ordem de …