Children who watch a lot of TV have reduced levels of attention

Changes were made in the DSM-5 for which of the following:

a) schizoaffective disorder. b) delusional disorder. c) schizophreniform disorder. d) brief psychotic disorder.

In a ________ design, participants are randomly assigned to one of two or more groups

a. pretest-posttest b. repeated measures c. matched-participants d. randomized groups e. multi-level