Drawing Sound Inferences Concerning the Effects of Treatment on Dispersion in Outcomes [electronic resource] : Bringing to Light Individual Differences in Response to Treatment. CSE Technical Report 710 / Michael Seltzer and Jinok Kim.
Individual differences in response to a given treatment have been a longstanding interest in education. While many evaluation studies focus on average treatment effects (i.e., the effects of treatments on the levels of outcomes of interest), this paper additionally considers estimating the effects o...
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| Format: | Electronic eBook |
| Language: | English |
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2007.
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| 100 | 1 | |a Seltzer, Michael. |0 http://id.loc.gov/authorities/names/nr2001017964 |1 http://isni.org/isni/0000000067908014. | |
| 245 | 1 | 0 | |a Drawing Sound Inferences Concerning the Effects of Treatment on Dispersion in Outcomes |h [electronic resource] : |b Bringing to Light Individual Differences in Response to Treatment. CSE Technical Report 710 / |c Michael Seltzer and Jinok Kim. |
| 260 | |a [Place of publication not identified] : |b Distributed by ERIC Clearinghouse, |c 2007. | ||
| 300 | |a 43 pages. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
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| 500 | |a Availability: National Center for Research on Evaluation, Standards, and Student Testing (CRESST). 300 Charles E Young Drive N, GSE&IS Building 3rd Floor, Mailbox 951522, Los Angeles, CA 90095-1522. Tel: 310-206-1532; Fax: 310-825-3883; Web site: http://www.cresst.org. |5 ericd. | ||
| 500 | |a Sponsoring Agency: National Center for Research on Evaluation, Standards, and Student Testing, Los Angeles, CA. |5 ericd. | ||
| 500 | |a Abstractor: Author. |5 ericd. | ||
| 500 | |a Educational level discussed: Elementary Education. | ||
| 500 | |a Educational level discussed: Elementary Secondary Education. | ||
| 516 | |a Text (Reports, Evaluative) | ||
| 520 | |a Individual differences in response to a given treatment have been a longstanding interest in education. While many evaluation studies focus on average treatment effects (i.e., the effects of treatments on the levels of outcomes of interest), this paper additionally considers estimating the effects of treatments on the dispersion in outcomes. Differences in dispersion can, under certain circumstances, signal individual differences in response to a given treatment, thereby helping us identify factors that magnify or dampen the effects of treatments that might otherwise go unnoticed. Much of this paper focuses on quasi-experiments in nested settings, which are commonly encountered in multi-site evaluation studies. In such settings, studying differences in dispersion as well as in means (e.g., differences in levels of outcomes for treatment and control group students) entails jointly modeling mean and dispersion structures in a hierarchical modeling (HM) framework. This paper shows how a well-elaborated dispersion structure based on substantive theories mitigate the problem of confounding by cluster characteristics, while a well-elaborated mean structure helps avoid confounding by individual characteristics, with regard to inferences concerning dispersion. We illustrate these ideas with analyses of the data from a study of the effectiveness of two innovative instructional programs relative to traditional instruction in elementary mathematics classrooms. We employ a fully Bayesian approach and discuss its advantages in modeling dispersion. We further discuss possible extensions of the methodology to other evaluation settings, including longitudinal evaluation settings. (Contains 3 figures and 4 tables.) | ||
| 524 | |a National Center for Research on Evaluation, Standards, and Student Testing (CRESST). |2 ericd. | ||
| 650 | 0 | 7 | |a Individual Characteristics. |2 ericd. |
| 650 | 0 | 7 | |a Mathematics Instruction. |2 ericd. |
| 650 | 0 | 7 | |a Inferences. |2 ericd. |
| 650 | 0 | 7 | |a Conventional Instruction. |2 ericd. |
| 650 | 0 | 7 | |a Control Groups. |2 ericd. |
| 650 | 0 | 7 | |a Program Evaluation. |2 ericd. |
| 650 | 0 | 7 | |a Quasiexperimental Design. |2 ericd. |
| 650 | 0 | 7 | |a Outcomes of Education. |2 ericd. |
| 650 | 0 | 7 | |a Individual Differences. |2 ericd. |
| 650 | 0 | 7 | |a Bayesian Statistics. |2 ericd. |
| 650 | 0 | 7 | |a Instructional Innovation. |2 ericd. |
| 650 | 0 | 7 | |a Elementary School Mathematics. |2 ericd. |
| 650 | 0 | 7 | |a Elementary Education. |2 ericd. |
| 650 | 0 | 7 | |a Models. |2 ericd. |
| 650 | 0 | 7 | |a Academic Standards. |2 ericd. |
| 650 | 0 | 7 | |a Professional Development. |2 ericd. |
| 700 | 1 | |a Kim, Jinok. | |
| 710 | 2 | |a University of California, Los Angeles. |b Center for Research on Evaluation, Standards, and Student Testing. |0 http://id.loc.gov/authorities/names/n88099210 |1 http://isni.org/isni/0000000121066955. | |
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