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Partnership for Accessible Reading Assessment (PARA): Calibration

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Title: Partnership for Accessible Reading Assessment (PARA): Calibration


1
Partnership for Accessible Reading Assessment
(PARA)Calibration Motivation
Studiespresentation to the Technical Advisory
Committee October 11, 2007Deborah Dillon
David OBrienUniversity of Minnesota
2
  • The Calibration Study

3
Calibration 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?

5
Participants
  • 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.

9
Passage combinations Table 1 Distribution of 10
anchor passages
10
Design-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
  • The Motivation Study

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?

16
Participants
  • 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).

19
Design
  • 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

23
Data structure
Note. Y reading score.
24
Analysiscont.
  • 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?
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