There are three general categories of reinforcers - primary,secondary,and tertiary.

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There are two general categories of reinforcers: primary (or unconditioned) reinforcers, which are innately satisfying or necessary for survival, and secondary (or conditioned) reinforcers, which acquire their reinforcing properties through association with primary reinforcers. Tertiary reinforcers are not a widely recognized category in the study of reinforcement.

There Are Three General Categories of Reinforcers - Primary,secondary,and Tertiary