title: On distinguishing progressively increasing response requirements for reinforcement.
abstract: Several different arrangements have been described for increasing the response requirements for reinforcement using the label progressive-ratio schedule. Under the original progressive-ratio schedule, the response requirement is increased after each reinforcer. Subsequently, arrangements have been used in which the number of required responses increases following multiple reinforcers at a single response requirement or between sessions. Following an assessment of the different types of contingencies that result from such progressive response requirements and the labels used to describe them, a set of descriptive labels is suggested for these different types of progressively increasing response requirements.
authors.affiliation: West Virginia University.
authors.forename: David P
authors.initials: DP
authors.lastname: Jarmolowicz
authors.forename: Kennon A
authors.initials: KA
authors.lastname: Lattal