Examlex
Which of these is a first-class lever?
Seligman
Martin E.P. Seligman, a psychologist known for his work on positive psychology, learned helplessness, and theories on happiness and well-being.
Symptoms
Physical or mental features that are regarded as indicating a condition or disease.
Token Economy
A behavior modification method that uses tokens as rewards for desired behaviors, which can be exchanged for privileges or goods.
Reinforcers
Stimuli that increase the likelihood of a behavior being repeated.
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