NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 10 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Karlson, Kristian Bernt; Popham, Frank; Holm, Anders – Sociological Methods & Research, 2023
This article presents two ways of quantifying confounding using logistic response models for binary outcomes. Drawing on the distinction between marginal and conditional odds ratios in statistics, we define two corresponding measures of confounding (marginal and conditional) that can be recovered from a simple standardization approach. We…
Descriptors: Statistical Analysis, Probability, Standards, Mediation Theory
Peer reviewed Peer reviewed
Direct linkDirect link
Leite, Walter L.; Aydin, Burak; Gurel, Sungur – Journal of Experimental Education, 2019
This Monte Carlo simulation study compares methods to estimate the effects of programs with multiple versions when assignment of individuals to program version is not random. These methods use generalized propensity scores, which are predicted probabilities of receiving a particular level of the treatment conditional on covariates, to remove…
Descriptors: Probability, Weighted Scores, Monte Carlo Methods, Statistical Bias
Peer reviewed Peer reviewed
Direct linkDirect link
Longford, Nicholas T. – Journal of Educational and Behavioral Statistics, 2015
An equating procedure for a testing program with evolving distribution of examinee profiles is developed. No anchor is available because the original scoring scheme was based on expert judgment of the item difficulties. Pairs of examinees from two administrations are formed by matching on coarsened propensity scores derived from a set of…
Descriptors: Equated Scores, Testing Programs, College Entrance Examinations, Scoring
Guanglei Hong; Jonah Deutsch; Heather D. Hill – Grantee Submission, 2015
Conventional methods for mediation analysis generate biased results when the mediator-outcome relationship depends on the treatment condition. This article shows how the ratio-of-mediator-probability weighting (RMPW) method can be used to decompose total effects into natural direct and indirect effects in the presence of treatment-by-mediator…
Descriptors: Weighted Scores, Probability, Statistical Analysis, Interaction
Peer reviewed Peer reviewed
Direct linkDirect link
Guanglei Hong; Jonah Deutsch; Heather D. Hill – Journal of Educational and Behavioral Statistics, 2015
Conventional methods for mediation analysis generate biased results when the mediator--outcome relationship depends on the treatment condition. This article shows how the ratio-of-mediator-probability weighting (RMPW) method can be used to decompose total effects into natural direct and indirect effects in the presence of treatment-by-mediator…
Descriptors: Weighted Scores, Probability, Statistical Analysis, Interaction
Medina, Mary Christine – ProQuest LLC, 2016
The purpose of this study was to determine the impact of a summer bridge program geared toward first-year students at a large public university located in the Southeastern United States. The research question guiding this study was, "Does participation in a summer bridge program increase academic success for first-year college students?"…
Descriptors: College Freshmen, Summer Programs, Transitional Programs, Program Effectiveness
Peer reviewed Peer reviewed
Direct linkDirect link
Manolov, Rumen; Solanas, Antonio – Psychological Methods, 2012
There is currently a considerable diversity of quantitative measures available for summarizing the results in single-case studies. Given that the interpretation of some of them is difficult due to the lack of established benchmarks, the current article proposes an approach for obtaining further numerical evidence on the importance of the results,…
Descriptors: Sampling, Probability, Statistical Significance, Case Studies
Peer reviewed Peer reviewed
PDF on ERIC Download full text
Qian, Jiahe – ETS Research Report Series, 2008
In survey research, sometimes the formation of groupings, or aggregations of cases on which to make an inference, are of importance. Of particular interest are the situations where the cases aggregated carry useful information that has been transferred from a sample employed in a previous study. For example, a school to be included in the sample…
Descriptors: Surveys, Models, High Schools, School Effectiveness
Peer reviewed Peer reviewed
PDF on ERIC Download full text
Qian, Jiahe – ETS Research Report Series, 2006
Weighting and variance estimation are two statistical issues involved in survey data analysis for large-scale assessment programs such as the Higher Education Information and Communication Technology (ICT) Literacy Assessment. Because survey data are always acquired by probability sampling, to draw unbiased or almost unbiased inferences for the…
Descriptors: Weighted Scores, Sampling, Statistical Analysis, Higher Education
Moore, R. Paul – 1975
The report traces the activities which led to the development of the adjusted weights--beginning with the basic National Longitudinal Study design, the base-year weight calculations, and the resurvey procedures. Next, the report describes the first follow-up weight calculations (including unadjusted student weights), nonresponse adjustment…
Descriptors: Attrition (Research Studies), Followup Studies, Graduate Surveys, High School Graduates