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PTI-2: Pictorial Test of Intelligence - Second Edition
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The PTI-2 is a revision of the Pictorial Test of Intelligence (French,
1964) and is
an objectively scored, individually administered test of
general intelligence for
both normal and disabled children ages 3-0
through 8-11 years. Administration time ranges from 15 to 30 minutes.
Administer three subtests and combine the scores to get the Pictorial
Intelligence Quotient,
a global index of performance
to provide a multidimensional measure of
g. The subtests
areas follows:
• Verbal Abstractions – requires the examinee to
identify pictures that (a) represent the
meaning of a spoken word, (b) represent the meaning of a
spoken
definition of a word,
and (c) that are different in form or function
from a set of pictures.
• Form Discrimination – requires the examinee to match
forms, differentiate between
similar shapes, identify unfinished pictures, find embedded shapes,
and
reason about
abstract shapes and patterns.
• Quantitative Concepts – samples an examinee's
recognition of size, comprehension of
number symbols, ability to count, and ability to solve simple arithmetic
problems.
Standardized on 972 persons from 17 states, the data are representative
of the current population of the U.S as reported in the Statistical
Abstract of the United States (U.S. Bureau
of the Census, 1997) for the entire school-age population. The PTI-2
provides three types of scores: percentiles, standard scores, and age
equivalents.
Reliability was demonstrated
using coefficient alpha, test¬ re-test, and inter
scorer procedures.
Coefficient alphas for Verbal Abstractions, Form Discrimination,
Quantitative Concepts, and Pictorial Intelligence Quotient are .89, .88,
.88,
and .94, respectively. Evidence of validity of the PTI-2 test
scores is proven for
content-description validity, criterion-prediction
validity, and construct-identification validity.
Finally, the PTI-2 items were developed to obtain fairness with diverse
groups. The items
were examined to ensure that little or no bias relative to gender, race,
or ethnicity existed. Differential item functioning techniques were used
to examine items for potential bias. The
PTI-2 will be especially helpful
when used with children who have
difficulty with fine motor
skills or a speech-¬language problem. The test has been normed so that
it can be used with
children with cortical disorders or other conditions
affecting speech or motor coordination. Respondents do not need to use
expressive language, but they
do need near normal vision
and hearing. None of the items are timed.
COMPLETE PTI–2 KIT (©2001) INCLUDES:
• Examiner's Manual
• Picture Book
• Profile/Examiner Record Booklets
• all in a sturdy storage box.
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