Assume that of 55 persons who take a test, 10 of the 15 people falling in the upper group on total
test score and 5 of the 15 falling in the lower group on total test score pass a given item. What is
the item discrimination index?
A) 1.00 B) .33 C) .50 D) .17
B
Psychology
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What aspect of somatic symptom disorders make them different from medical disorders?
a. They make sense neurologically. b. They are due to an actual physical illness. c. They are unrelated to psychological factors. d. They cannot be explained by a known organic cause.
Psychology
Approximately 80% of children with __________ are male; 50% suffer from mental retardation; and 35% experience seizures
Fill in the blank with the appropriate word.
Psychology