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Educational Psychology

Theses/Dissertations

2014

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Full-Text Articles in Education

Model Selection For Irt Equating Of Testlet-Based Tests In The Random Groups Design, Juan Chen Dec 2014

Model Selection For Irt Equating Of Testlet-Based Tests In The Random Groups Design, Juan Chen

Theses and Dissertations

The use of testlets in a test can cause multidimensionality and local item dependence (LID), which can result in inaccurate estimation of item parameters, and in turn compromise the quality of item response theory (IRT) true and observed score equating of testlet-based tests. Both unidimensional and multidimensional IRT models have been developed to control local item dependence caused by testlets. The purposes of the current study were to (1) investigate how different levels of LID can affect IRT true and observed score equating of testlet-based tests when the traditional three parameter logistic (3PL) IRT model was used for calibration, and ...


The Effects Of Value-Added Modeling Decisions On Estimates Of Teacher Effectiveness, Paula Lynn Cunningham Dec 2014

The Effects Of Value-Added Modeling Decisions On Estimates Of Teacher Effectiveness, Paula Lynn Cunningham

Theses and Dissertations

This study was undertaken to evaluate the impact of modeling decisions made by those charged with implementing teacher evaluation systems that incorporate student achievement data; such choices include how growth is to be modeled, whether student characteristics are to be controlled for, how many years of data are to be used, and which test subject is to be selected. Using a three-cohort longitudinal data set from a school district in which reading and mathematics test scores from a vertically-scaled assessment allowed determination of growth in grades three, four, and five, estimated teacher effects were derived from five value-added models, and ...


Growth And The College Readiness Of Iowa Students : A Longitudinal Study Linking Growth To College Outcomes, Anthony Fina Dec 2014

Growth And The College Readiness Of Iowa Students : A Longitudinal Study Linking Growth To College Outcomes, Anthony Fina

Theses and Dissertations

As current educational policies continue to emphasize the importance of college readiness and growth, it is essential to understand the degree to which test scores collected throughout middle school and high school can provide information to make valid inferences about students' college readiness. This thesis sought to summarize the college readiness of Iowa students, describe the nature of student growth, and clarify the relationship between student growth and college readiness. Together, the results support the validity argument that scores from a general achievement test can be used for measuring student growth and making on-track interpretations about college readiness.

Results of ...


An Evaluation Of The Impact Of The Dsm-Iv-Tr Diagnostic Group And Cognitive Ability On The Presentation Of Autism Spectrum Disorder Symptoms, Zachary Wroe Sussman Dec 2014

An Evaluation Of The Impact Of The Dsm-Iv-Tr Diagnostic Group And Cognitive Ability On The Presentation Of Autism Spectrum Disorder Symptoms, Zachary Wroe Sussman

Theses and Dissertations

Autism Spectrum Disorder (Autism Spectrum Disorder) is a neurodevelopmental syndrome characterized by impairment to social communication adjoined by the presence of rigidity, restricted interests, and/or repetitive behaviors. Diagnosis of Autism Spectrum Disorder recently shifted from a series of pervasive developmental disorders recognized in the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR; American Psychiatric Association, 2000) to a single, comprehensive diagnosis in the 5th edition of the same manual (DSM-5; APA, 2013). To evaluate the appropriateness in this shift in diagnostic practice, the current study evaluates the consistency in symptom presentation amongst the previous DSM-IV-TR ...


Teacher Attributions, Expectations, And Referrals For Students Involved In The Child Welfare And Juvenile Justice Systems, Stephanie Nichole Anthony Dec 2014

Teacher Attributions, Expectations, And Referrals For Students Involved In The Child Welfare And Juvenile Justice Systems, Stephanie Nichole Anthony

Theses and Dissertations

The primary purpose of this study was to examine differences in the attributions teachers make toward students in the child welfare and juvenile justice systems. The study utilized vignettes and asked teachers to attribute the responsibility for declines in behavior and academic performance to one of five sources (the student, the parents, the teacher, the court system, or the student's friends). The study further asked teachers to identify the extent to which the changes were due to the student's internal traits and external factors, the likelihood of changes in behavior and academic performance with and without intervention, the ...