Henry's mother always praises him when he practices the piano and denies him dessert when he doesn't. Henry's mother is apparently employing techniques based on ____ in order to encourage her son to practice more

Which memory system has an unlimited capacity and can keep information for minutes or decades?

a. Short-term memory b. Long-term memory c. The sensory register d. Working memory

What is the typical dependent variable used in studies of the operant conditioning of lever pressing in rats?

a. the number of responses per minute b. the cumulative record of lever presses c. the average intensity of lever presses d. none of the above