Quasi experimental designs that involve two preexisting groups have as a problem that
a. The focus is entirely on individuals
b. Alternative hypotheses cannot ever be ruled out
c. Differences between the groups may have existed before the experiment started
d. They are by definition confounded
c
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Factorial designs must have:
a. more than one independent variable. b. more than one dependent variable. c. more than two levels of the independent variable. d. all of these
With respect to Autism Spectrum Disorder:
a. Approximately 80% of autistics also have an intellectual disability b. It accounts for the majority of children with IQ scores below 20 c. Regardless of type, individuals with autism have verbal abnormalities d. All of the above
Rahul is five years old. He wants to be with his parents at all times and follows them from room to room. He refuses to go out and play with other children of his age. He even clings to his father in the playground. Rahul is showing symptoms of _____
A) dissociative identity disorder B) separation anxiety disorder C) narcissistic personality disorder D) attention-deficit disorder
The most frequently prescribed antidepressant drugs with relatively low anticholinergic side effects are
a. selective serotonin reuptake inhibitors b. non-selective dopamine reuptake inhibitors c. non-selective noradrenergic inhibitors d. lithium