Words to Describe reinforcers

How reinforcers often is described ("________ reinforcers")

• operant
• secondary
• delayed
• negative
• contrived
• alternative
• material
• nonsocial
• select
• relevant
• potential
• potent
• nonverbal
• arbitrary
• environmental
• appetitive
• strong
• primary
• natural
• idiosyncratic
• sensory
• fewer
• conventional
• appropriate
• unconditioned
• artificial
• symbolic
• conditioned
• stronger
• intrinsic
• tangible
• visual
• meaningful
• immediate
• aversive
• strongest
• positive
• social
• functional
• behavioral
• consumable
• learned
• extrinsic
• available
• effective
• possible
• contingent
• powerful
• monetary
• weak
• concrete
• verbal
• edible
• external
• generalized
• nondrug
• preferred