Studies exploring the efficacy of ECT have found that up to ___% of patients experience significant improvements in their symptoms of depression after six to 12 ECT sessions over two to four weeks

Barry walks up to his nine-month-old son and says (very slowly and with major fluctuations in his voice's pitch and loudness), "Ohhhhhhhhh, are you Daddy's little baaaaaaaby?" Barry is illustrating a. scaffolding

b. telegraphic speech. c. overextension. d. infant-directed speech.

To compare the means of two randomly assigned groups of individuals, the appropriate test is:

a. a t-test for dependent groups. b. a t-test for matched scores. c. a t-test for independent groups. d. any one of these