Which of the following types of research attempts to understand the most helpful parts of treatments that are known to work?

Sam is looking for a job to earn money and to put him near stimuli he uses to achieve sexual excitement. He gets the ideal job at a shoe store; however, he is fired when his interactions with customers provide evidence that he has which sexual disorder?

a. voyeurism. b. fetishism. c. klismaphilia. d. exhibitionism.

A child does well in some school subjects. However, the only way that he can read is slowly, one word at a time. He must direct his gaze with his index finger. Even with great effort, he makes many errors and has poor comprehension. This is a description of:

A) aphasia. B) dyslexia. C) echolalia. D) word blindness.