Elmer is attending speech therapy classes because he has a frontal lisp, that is, he mispronounces the "s" sound as a "th.". For example, he might say that "the thun thines in the morning.". Elmer is exhibiting a problem with

What was one of the major differences between low-income children who did and did not participate in the High Scope Preschool Project? At age 27 years, ____

a. those who participated were more likely to be married and to own their house b. there were no significant differences between the two groups c. they were just as likely to have dropped out of high school d. they were more likely to have been married and divorced at least twice

Acts that "must be done" are called

a. compulsions. b. obsessions. c. motor impulses. d. preservative impulses.