Title: Partnership for Accessible Reading Assessment (PARA): Calibration
1Partnership for Accessible Reading Assessment
(PARA)Calibration Motivation
Studiespresentation to the Technical Advisory
Committee October 11, 2007Deborah Dillon
David OBrienUniversity of Minnesota
2 3Calibration Study
- The purpose of the study is to scale or
calibrate the measurement tools that will be used
in a large-scale accessible reading assessment
for students with disabilities. - This process allows investigators to empirically
determine the comparability of passages and items
used in the reading assessment study by placing
all passages and questions on a common IRT (item
response theory) -based equal-interval
measurement scale.
4 Research Questions
- 1. What is the difficulty of each reading
passage (based on a passage total score, which,
in turn, is based on performance on all passage
comprehension items/questions) and each
comprehension item/question? - How well can the reading passages be placed on a
common interval measurement scale to allow scores
from different passages (of equal or unequal
difficulty) to be compared and equated? - 3. Based on IRT item fit statistics, what
multiple choice items should be retained and
which should be eliminated? - 4. Which reading passages do students prefer to
read?
5Participants
- A representative total sample of 600 students
- 300 from grades 3-5 (100 3rd graders, 100 4th
graders, 100 5th graders) in 12-16 intact
classrooms - 300 students from grades 7-9 (100 7th graders,
100 8th graders, 100 9th graders) in 12-16 intact
classrooms. - Students representing the full range of reading
ability, including students with disabilities are
included in the study
6 Design Steps in the Calibration Process
- Selected 40 passages, including 10
literary-fiction and 10 informational-exposition
texts for each grade level (4th and 8th) the
passages were rated as easy, medium, and hard in
difficulty. - Commissioned the writing of 10 items for each
passage, using the 2009 NAEP Reading Framework
cognitive targets .
7 Visual Item Analysis Test Booklet Layout
- Criteria were developed to make decisions about
the inclusion or exclusion of visual items within
passages multiple raters judged all visual items - criteria were developed from studies of
readability and document analyses and universal
design applied to large-scale assessments to
inform test layout
8 Design
- Testing procedures were employed to assure
representation of passage text types while
removing order effects - Within classes students will be assigned to one
of 16 possible test forms (a form is a set of
passages with counterbalanced passage order) - The test includes 10 anchor passages (included in
all forms), and 10 non-anchor passages, from
which five are selected and included in each
form.
9Passage combinations Table 1 Distribution of 10
anchor passages
10Design-cont.
- After reading each passage, students will answer
10 multiple choice questions representing a range
of cognitive targets (NAEP 2009) based on each
passage. - As students work through the assessment, they
will be asked questions related to their
motivation to read (Situated Motivation
Questions). - The reading test will require 4 sessions of
approximately 60 minutes each. During each
session, students will read 3-4 passages and
respond to the accompanying items/questions.
11 Experimental Design and Analysis
- This preliminary item/passage psychometric
calibration study will allow for - the placement of all passages/questions on a
common equal-interval measurement scale, - the development of passage scoring tables by
which to assign subjects reading ability
scores, and - provision of a mechanism for equating scores
across different passages. - This item fit analysis will determine which
items will be retained and those that will be
eliminated.
12 13 Motivation Study
Purpose To examine whether improving the
motivational characteristics of a large-scale
reading assessment increases its accessibility
for students with disabilities, and in so doing
provides a more valid assessment of these
students reading proficiency due to their
increased engagement.
14 Research Questions
- Is there an interaction effect between choice,
type of text, and type of student? - Is there a correlation between students general
motivation to read (e.g., as measured by the
Motivation to Read Questionnaire MRQ) and their
performance on a large-scale reading assessment?
Are participants who are more motivated to read
(as measured by the MRQ), more likely to benefit
from the choice option on a large scale reading
assessment?
15 Research Questionscont.
- Does the option of exercising choice in the
selection of reading comprehension passages,
which is hypothesized to improve student
motivation and engagement on a large-scale
assessment, produce significantly higher measured
reading comprehension for all students? - Is there a significant difference in reading
scores of students with disabilities versus
general education students on large-scale reading
assessments? - Is there a significant difference in student
performance on text type (literary-fiction versus
informational-exposition passages) on large-scale
reading assessments?
16Participants
- 280 students who are fluent in English
- 140 students from 4th grade
- 140 students from 8th grade
- targeted samples of students representing a range
of disability groups are included - students will be placed in a treatment condition
based on stratified random assignment (i.e.,
students representing particular disabilities
will be randomly assigned to the experimental and
control conditions).
17 Design Components of the Test
- The motivation assessment includes 2
literary-fiction and 2 informational-expository
passages for both grade 4 grade 8 passage
order will be randomly assigned. - Each passage will be followed by 5-6 multiple
choice items. - The assessment is untimed and will be completed
on a computer-based platform.
18 Attending to Issues of Motivation
- General motivation will be measured prior to the
test to obtain information on students feelings
about self as reader (e.g., Motivation for
Reading Questionnaire-MRQ). - Situated motivation will be measured using
questions woven into the test booklets for the
choice and no-choice conditions (placed after the
comprehension items) specific questions will tap - students perceptions of the texts they read
- (e.g., difficulty interest), and
- students sense of self-efficacy in reading and
completing the items following the passage (the
task).
19Design
-
- A counterbalanced stratified random assignment
design will be used with experimental choice (C)
groups that select reading passages for the
assessment (design your own assessment) and
control no choice (NC) groups that do not select
passages
20 Design Procedures
- Students in the experimental group are given
choice (C) in selecting the passages they read in
comparison to students in a control group who are
not given choice in selecting passages (NC). - students in the (C) (NC) condition read short
descriptions for 6 informational-exposition and 6
literary-fiction passages - they rate the passages according to interest
- students in the (C) condition select 2 passages
from each genre to create their own personal
assessment.
21 Design Procedurescont.
- Post-assessment interviews will be conducted with
subsets of students from the control and
experimental groups at both grade levels. - Students from the various disabilities groups as
well as regular education students will be
selected for interviews (16 students from 4th
grade and 16 from 8th grade)
22 Analysis
- The dependent measure is comprehension
performance (Y) factors include choice condition
(choice/ no choice), disability status (youth
with disabilities/ youth without disabilities)
text type (literary-fiction/informational-expositi
on) - A split-plot design will be used with two
between-subjects factors (A passage choice B
disability status), one within-subjects factor
(C text type), one blocking variable (S
subject), one covariate (X motivation as
assessed on the MRQ) at the between-subject
level A, B, C, and X are fixed effects, and S is
a random effect
23Data structure
Note. Y reading score.
24Analysiscont.
- Analysis of variance will be used to evaluate
various effects correlations of students
performance on the comprehension test responses
on the MRQ and situated motivation questions will
be calculated - Various analytic deduction approaches will also
be used to analyze the post assessment interview
data and a mixed-design approach will be used to
integrate the overall quantitative and
qualitative findings.
25 Questions to Discuss
- The motivation study was designed to draw on
several powerful constructs of motivation
including choice of topic/selecting the passage
one wants to read. What more could we add to the
study design to increase the motivational aspects
of the assessment and yet still be able to
determine what impacts performance on a
comprehension assessment? - We are considering several options for passage
order for the Choice condition (vs. random
assignment). After students select passages
should we (a) order them from easiest to most
difficult, or (b) let students read their
selected passage in an order that appeals to
them. What are your thoughts about these
options? Are there other suggestions that might
increase the motivational aspects of the design?
26 Questionscont.
- We are still concerned about the placement of the
embedded situational motivation questions in the
assessment. Should they be placed immediately
after each passage? after 2 passages? at the end
of the test (after the 4th and final passage)? - It has been suggested that the Post-assessment
interview protocol could be improved with Likert
scales that lead to quantification of responses.
Is this a suggestion we should follow?