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Full-Text Articles in Education
Dissecting The Impact Of Dif/Dbf On Ability Estimation And Person Fit, Kevin Cappaert
Dissecting The Impact Of Dif/Dbf On Ability Estimation And Person Fit, Kevin Cappaert
Theses and Dissertations
Prior research has shown that differential item functioning (DIF) and differential bundle functioning (DBF) can influence ability estimation in unidimensional item repose theory (IRT); however, the relationship between ability estimation and uniform and non-uniform DIF/DBF has not been thoroughly investigated. Therefore, a simulation study was conducted to more thoroughly investigate how DIF/DBF and other related factors influence ability estimation in IRT. The factors examined included bundle size, the sum of uniform DIF in a bundle, magnitude of non-uniform DIF in each item in a bundle, balance of reference and focal group examinees, test length, and impact. Results indicated that an …
Screening And Diagnostic Validity Of Affinity 2.5, Heather Lynn Stephenson
Screening And Diagnostic Validity Of Affinity 2.5, Heather Lynn Stephenson
Theses and Dissertations
Affinity 2.5 is a computer-based instrument designed to assess sexual interest using viewing-time measures. Viewing-time measures of sexual interest have been developed to identify individuals with deviant sexual interest. The purpose of this study is to examine the validity of Affinity 2.5 in screening and diagnosing individuals with sexually deviant interests. This study used viewing time profiles of known sexual offenders compared to norm-referenced profiles of an exclusively heterosexual, non-pedophilic college population. Participants were 155 males and 3 females who had sexually offended against children and 63 male and 84 female non-offender college students. Results show that 43.7% of offenders …
Validity And Rater Reliability Of Peer And Self Assessments For Urban Middle School Students, Lucas Jackson
Validity And Rater Reliability Of Peer And Self Assessments For Urban Middle School Students, Lucas Jackson
Theses and Dissertations
This project studied the validity and reliability of self and peer assessments used for group work. The targeted population is middle school students in urban schools. The sample includes 45 sixth graders selected from a public middle school in a large Midwestern metropolitan area. The students worked in groups to complete a classroom project. Self and peer assessment forms were used to rate each member's contribution to the group work. A Generalizability Theory design was used to evaluate the reliability of self and peer assessments. The validity of student ratings was assessed by comparing them to those assigned by the …