A stimulus that by its mere presence or absence changes the probability of a behavior. For example, a 50 percent off sign in a store window could be a discriminitive stimulus.

Operant conditioning. A stimulus that increases the probablity of a response.

Discriminative stimulus is a term used in classical conditioning as a part of the process known as operant conditioning. A discriminative stimulus is a type of stimulus that is used consistently to ga [..]

A stimulus in the presence of which a particular response will be reinforced or punished.

(1) In operant discrimination. a stimulus in the presence of which a response is reinforced and in the absence of which it goes unreinforced. (2) In respondent discrimination. a stimulus in the presen [..]

A discriminative stimulus is the particular occasion on which a performance is reinforced, in contrast to other occasions (stimuli) on which this performance is not reinforced. The term has the connot [..]

The events that precede operants and set the occasion for behavior.

(Sd, pronounced ess-dee, or S^, pronounced ess-delta) A stimulus in the presence of which a particular response is likely to be, or not to be, reinforced. It sets the occasion for the response. For ex [..]

(Sd) – An Sd is the instruction given to the client. It may be verbal or non-verbal.