Preschool and Primary Scale of Intelligence, 3rd. ed. (WPPSI-III).
David Wechsler, The
Psychological Corporation, 2002.
The WPPSI-III is an individual test that does
not require reading or writing. Verbal subtests are oral questions without time
limits. Performance subtests are nonverbal (both spatial and fluid reasoning)
problems, several of which are timed. Subtest scores, IQ scores, Processing
Speed Quotients, and the General Language Composite scores are based on the
scores of the 1700 children, ages 2 years 2 months to 7 years 3 months,
originally tested in a very carefully designed, nationwide sample, but still
must be interpreted very cautiously for any individual, especially one who may
have somewhat unusual patterns of strengths and weaknesses. As with any test,
influences such as anxiety, motivation, fatigue, rapport, and experience
may invalidate test scores.
oral, “trivia”-style general information questions. Scoring is pass/fail.
giving oral definitions of words. Scoring is 2-1-0, according to the quality of
deducing the meaning of a word from one, two, or
three clues. Scoring is pass/fail.
oral questions of social and practical understanding. Scoring is 2-1-0, based
explaining how two different things (e.g., horse and cow) or concepts (e.g.,
hope and fear) could be alike. Scoring is 2-1-0, according to the quality of
copying small geometric designs with two, three, or four plastic cubes while
viewing a constructed model or a picture within a specified time limit. Scoring
is 2-1-0 for items 1 through 6 and 2-0 for items 7 to 20.
completing logical arrangements of designs with missing parts; multiple-choice.
Scoring is pass/fail.
presented with two or three rows of pictures, choose the one picture from each
row based upon a common characteristic. Scoring is pass/fail.
identifying missing parts of pictures by either pointing to or naming the
missing part. Scoring is pass/fail.
assemble, within a specified time limit, puzzles of cut-apart silhouette objects
with no outline pieces. Scoring allows for scores from 5 to 0 depending upon the
deciding if a target symbol appears in a row of 3 symbols and marking YES
or ? accordingly.
*: copying symbols that are paired
with simple geometric designs as quickly as possible for 2 minutes
point to one of 4 pictures that represents the
word spoken by the examiner. Scoring is pass/fail.
Name pictures shown. Scoring is pass/fail.
is based on Information, Vocabulary, and
Word Reasoning. (Comprehension and Similarities are possible substitutes for the
other verbal subtests.)
IQ is based on Block Design,
Matrix Reasoning, and Picture Concepts. (Picture Completion and Object Assembly
are possible substitutes for the other Performance subtests.)
visual-motor, clerical speed and accuracy, includes Coding & Symbol Search.
Composite is based on Receptive
Vocabulary and Picture Naming
Full Scale IQ
is based on seven tests: 3 Verbal, 3
Performance (fluid), and 1 Processing Speed test.
* time limit