PUBLICATION DATA
Instrument name/abbreviation Individual Growth and Development Indicators of Early Literacy
(IGDIs-EL)
Version 2nd Edition – Universal Screening
Alias(es) ‘IGDIs 2.0’
Author(s) Scott McConnell, Ph.D.
Tracy Bradfield, Ph.D.
Alisha Wackerle-Hollman, Ph.D.
Michael Rodriguez, Ph.D.
Copyright Regents of the University of Minnesota, 2012
Publisher/address Early Learning Labs, Inc.
1450 Energy Park Drive, Suite 375, Saint Paul, MN 55108
PRODUCT DESCRIPTION
Brief description IGDIs-EL are a set of individually administered, early literacy
development to support the identification of children requiring
additional levels of intervention in oral language, phonological
awareness, alphabet knowledge and comprehension.
Primary use/purpose/approach Universal screening
Age/grade range covered Ages 4-0 to 4-11
Children who are attending preschool in the year before
kindergarten.
Administration time About 5-10 minutes
Individual vs. group Individually administered
User qualifications IGDIs-EL can be administered and scored by a professional or
paraprofessional who has been trained in the use of the test
materials.
The coordinator who oversees IGDIs-EL use and interpretation
should be a professional in special education, early childhood
education, psychology, speech and language, school nursing, or
another closely related area.
Technical Information Summary Sheet
Individual Growth & Development Indicators of Early Literacy (2nd Edition) – Universal Screening
Content
IGDIs-EL Domains Language & literacy
IGDIs-EL Subtest names Picture naming – oral language & vocabulary
Rhyming – phonological awareness
Alliteration – phonological awareness
Sound Identification – alphabet knowledge
‘Which One Doesn’t Belong?’ - comprehension
Forms IGDIs-EL consist of three seasonal sets, corresponding to typical
screening time points (fall, winter, and spring). Scoring is
developed separately for each set for each subtest.
Available in English only.
Materials included in the kit Administration Manual
Picture naming stimulus items
 Fall: 4 sample items, 15 test items
 Winter: 4 sample items, 15 test items
 Spring: 4 sample items, 15 test items
Rhyming stimulus items
 Fall: 4 sample items, 15 test items
 Winter: 4 sample items, 15 test items
 Spring: 4 sample items, 15 test items
Alliteration stimulus items
 Winter: 4 sample items, 15 test items
 Spring: 4 sample items, 15 test items
Sound identification stimulus items
 Fall: 4 sample items, 15 test items
 Winter: 4 sample items, 15 test items
 Spring: 4 sample items, 15 test items
‘Which one doesn’t belong’ stimulus items
 Fall: 4 sample items, 15 test items
 Winter: 4 sample items, 15 test items
 Spring: 4 sample items, 15 test items
* Record forms provided separately
Last revised: January 11, 2013
Page: 2
Technical Information Summary Sheet
Individual Growth & Development Indicators of Early Literacy (2nd Edition) – Universal Screening
SCORING INFORMATION
Items
Administration format Flash card stimuli
Administration always begins with a set of sample items for each
task. Continue to task items only if the child successfully completes
the sample items first - follow discontinuation criteria as described
in the instructions. For each seasonal set there are 15 task items.
Response format Only oral responses are accepted for Picture Naming and only
motor responses are accepted for Sound Identification. The child's
response could be oral or motor for Rhyming, Alliteration, and
‘Which One Doesn’t Belong’.
Item scoring Raw Score
Scoring processes are very basic. Items are scored as correct or
incorrect. Total score is number of correct responses (not including
sample items).
Composite score None
Scoring options By hand
Computerized scoring None
Growth standards Yes
Basis for acceptable None published
growth
Normative profile None published
Population demographics None published
Interpretive features Developmental benchmarks (RTI-oriented)
TECHNICAL INFORMATION
Standardization
Description All tasks must be administered using the stimuli and prompts
provided.
IGDIs-EL were standardized for English speakers.
Discontinue criteria Yes
Last revised: January 11, 2013
Page: 3
Technical Information Summary Sheet
Individual Growth & Development Indicators of Early Literacy (2nd Edition) – Universal Screening
Reliability
Internal consistency None reported
Test-retest .93-.97
Validity
35-69 months of age
Concurrent
Picture Naming:
Rhyming:
Alliteration:
Sound ID:
‘WODB’:
.66
.45
.52
.76
.61-.71
Criterion/Test
PPVT-4
TOPEL
TOPEL-PA
TOPEL-PK
CELF-Pre-2
Predictive None reported
Instruments used in Test of Preschool Early Literacy (TOPEL), Peabody Picture
correlation studies Vocabulary Test–Fourth Edition (PPVT-4), Clinical Evaluation of
Language Fundamentals – Preschool Second Edition (CELF-Pre-2)
Sensitivity & Specificity
Sensitivity .71-.77
Specificity .57-.69
OTHER
Developmental history
The first edition IGDIs-EL were first published by the University of
Minnesota in 1998 and made available through the Get it, Got it,
Go! website (ggg.umn.edu). These, the second edition, were also
developed at the University of Minnesota and published in 2013.
Special features
The IGDIs-EL items were selected based on concepts present in
regular/typical classroom settings and assess skills known to be
predictive of learning problems.
Sample items are used to give children the opportunity to
understand the requirements of each task before test administration.
Sensitivity to other cultures
Last revised: January 11, 2013
To the greatest extent possible, items were chosen to represent
objects or items present in a typical preschooler’s environment or
experiences. Although items were not specifically designed under a
framework of avoiding cultural bias, the diversity of the items
sampled within the timed administration period provides control for
any cultural bias that may be experienced by an individual children
or group of children.
Page: 4
Technical Information Summary Sheet
Individual Growth & Development Indicators of Early Literacy (2nd Edition) – Universal Screening
Training options available
Onsite or online trainings are available for IGDIs-EL. Training
topics include: (1) Administration, (2) Progress Monitoring/
Benchmarking, and (3) IGDIs-EL within the context of Decisionmaking Frameworks, such as RTI.
Minimum time required for
training tester
1 hour
Last revised: January 11, 2013
Page: 5