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Computer Based Assessment System for Early Reading
Ted Christ, Principal Investigator (funded by OSEP)
The purpose of this Phase I project is to develop an automated computer-based
assessment system (CBAS) to evaluate the level and rate of early reading
development. The CBAS will integrate the computer adaptive testing (CAT) and
Adaptive Self Referenced Assessment (ASRT) technology to facilitate efficient
and precise intervention-linked assessment system.
The CBAS for early reading development will integrate a
sub-skills analysis software program that will have applications to evaluate the
level and change of early reading profiles. The CBAS will guide early
intervention, prevention, and remediation of early reading skill deficits. The
application will have significant applications for students who are at risk or
diagnosed with reading disabilities. That automation and advanced psychometric
features of the CBAS will enhance the potential for educators to use data to
drive educational decisions and provide effective interventions.
The following objectives will be met in the course of CBAS
development: (a) develop a sub-skills hierarchy of early reading skills to
support CAT with a three parameter model in Item Response Theory (IRT); (b)
develop and summarize the item and test characteristics of the sub-skill
analysis application of the CBAS; (c) develop and summarize the item and test
characteristics for the progress monitoring application of the CBAS; (d)
evaluate the efficiency and utility of the CBAS for use within the classroom
setting; and (e) estimate the viability and relative advantages of CAT and IRT
within an educational setting.
General education teachers, special education teachers,
reading specialists, educational specialists (e.g., school psychologist, speech
and language pathologist), parents with children identified with reading
disabilities and/or deficits, and students with and without identified reading
disabilities will participate in the CBAS project. Project activities will
include, (a) the development and evaluation of a hierarchical organization of
early reading skills/sub-skills to guide the automated CAT procedures, (b)
development and calibration of a large item bank (N = 1000-1500) to isolate
deficits across foundational early reading skills, (c) data analysis and post
hoc simulations to estimate CAT parameters, (d) documentation of CBAS project
outcomes in a series of technical reports that will be summarized in a technical
manual, and (e) dissemination of the information and CBAS materials (including
product software) through manuscripts, national presentations, and the CBAS
Project Web site.
The CBAS project will result in the development of an
formative assessment tool of early reading development. The CBAS will be
developed specifically for use by teachers and educational diagnostician to help
develop and monitor intervention effects. The novel application and integration
of computer hardware, software, reading theory/research, CAT, and IRT will
contribute to an advanced early intervention instrument that will require
minimal teacher time and yield high quality data for use during intervention
design, implementation, and evaluation. The project is also likely to yield new
information on the benefits, procedures, and developments in CAT and IRT
applications for early academic assessment. The final product will be
disseminated to schools locally, regionally, and nationally through the CBAS Web
site.