What percentage of U.S. students is diagnosed with learning disorders?

In order to get her 3rd-grade students to memorize the poem written on the chalkboard, Mrs. Thyberg gives the students stickers for each poem they can recite from memory. After earning 5 stickers, a student gets to pick a prize out of the goody box. Mrs. Thyberg is using (a) ________ to modify the children's behaviors.

a. token economy b. applied behavior analysis c. negative reinforcement d. classical conditioning. e. positive punishment

Key factors associated with everyday dissociation include all of the following EXCEPT:

a) Fatigue b) Stress c) Head injuries d) Binge drinking