What percentage of Down syndrome cases are due to an extra number 21 chromosome?
a. Very few (less than 1%) b. Few (10-15%)
c. A moderate amount (35-55%)
d. Almost all (95% or more)
d
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The site of ongoing cognitive processing is called ____
a. working memory b. active calibration c. the executive control system d. the visuospatial sketchpad
The developmental psychopathology approach to studying childhood disorders emphasizes the importance of developmental____
a. disruptions b. processes and tasks c. regressions d. obstacles
A major disadvantage of projective tests is that
a. they are unstructured. b. scoring is highly involved and overly objective. c. validity and objectivity are typically low. d. they are of little use to clinical psychologists.
The proportion of adolescents in the U.S. population _____ during the 1960s
A) stayed level B) dropped slightly C) rose slightly D) rose dramatically