Larry, a 26-year-old man, often falls asleep suddenly. During these sleep attacks, he falls asleep for around 15 minutes and wakes up feeling refreshed. He also hallucinates that a person is sitting on his chest. In this scenario, Larry is likely suffering from__________

A scientist, conducting a research study on sleep and learning, questions her own objectivity and decides to let a third person, not associated with conducting the experiment, score the tests. The scientist is probably trying to eliminate ______ bias

a. experimenter b. sample c. control d. treatment

Which of the following has NOT been demonstrated through scientific research?

a. Rats raised in enriched environments have more synapses than rats raised in impoverished environments. b. Kittens deprived of visual stimulation in one eye early in life become permanently blind in that eye. c. After listening to classical music, college students show increased performance on some tasks. d. Young infants exposed to classical music show higher cognitive performance in preschool.