Tim's parents brought him to a psychological clinic when he was 5 years old. The clinician's
assessment shows that he currently meets diagnostic criteria for severe mental retardation and
autism.
However, Tim's parents report that he was a "normal little boy" until 6 months ago.
Then, over a period of a few weeks, many aspects of his behavior deteriorated very rapidly.
Which of the following diagnosis best fits this description of Tim's symptoms:
a. Autism
b. Asperger's disorder
c. Rett's syndrome
d. Childhood disintegrative disorder
e. Childhood-onset schizophrenia
D
You might also like to view...
Lielle is 5 years old and cannot sit still. She is almost always active and noisy and has difficulty maintaining sustained attention and following instructions in her kindergarten class. What condition might she have??
a. ?autism spectrum disorder b. ?somatic symptom disorder c. ?generalized anxiety disorder d. ?attention deficit hyperactivity disorder
The vernix protects the fetus against
a. chapping by movements in the amniotic liquid. b. temporary blinding by exposure to intense lights. c. becoming engorged by fluids received from the umbilical cord. d. annoying bites from mites that float in the womb.
Why do some instructors advise against using a laptop to take class notes?
a. The clicking of keys distracts others b. Students often record verbatim transcriptions of lectures c. Viewing another student’s laptop is distracting d. All of the above
Why do researchers not conduct several t-tests to analyze experiments that have more than two conditions?
a. the means will be invalid b. the sample size is too small c. Type I error is inflated d. the power of the analysis is low e. all of the above