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Evaluating Pretest Effects in Pre-Post Studies
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Kim, Eun Sook; Willson, Victor L. – Educational and Psychological Measurement, 2010
This article presents a method to evaluate pretest effects on posttest scores in the absence of an un-pretested control group using published results of pretesting effects due to Willson and Putnam. Confidence intervals around the expected theoretical gain due to pretesting are computed, and observed gains or differential gains are compared with…
Descriptors: Control Groups, Intervals, Educational Research, Educational Psychology
Characterizing the Mathematics Anxiety Literature Using Confidence Intervals as a Literature Review Mechanism
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Zientek, Linda Reichwein; Yetkiner, Z. Ebrar; Thompson, Bruce – Journal of Educational Research, 2010
The authors report the contextualization of effect sizes within mathematics anxiety research, and more specifically within research using the Mathematics Anxiety Rating Scale (MARS) and the MARS for Adolescents (MARS-A). The effect sizes from 45 studies were characterized by graphing confidence intervals (CIs) across studies involving (a) adults…
Descriptors: Intervals, Rating Scales, Effect Size, Remedial Mathematics
Report on Action Research: An Analysis of the Effects of a Six Step Approach to Direct Vocabulary Instruction on Student Achievement at the Elementary School Level
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Haystead, Mark W. – Marzano Research Laboratory, 2009
This report describes the findings of an analysis of a series of action research projects conducted by Goshen Community Schools at the elementary school level. During the 2008-2009 school year, 26 teachers at 7 elementary schools participated in independent action research studies regarding the extent to which a six step approach to direct…
Descriptors: Action Research, Vocabulary, Vocabulary Development, Direct Instruction
Report on Action Research: An Analysis of the Effects of a Six Step Approach to Direct Vocabulary Instruction on Student Achievement at the Middle School Level
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Haystead, Mark W. – Marzano Research Laboratory, 2009
This report describes the findings of an analysis of a series of action research projects conducted by Goshen Community Schools at the middle school level. During the 2008-2009 school year, six teachers at Goshen Middle School participated in independent action research studies regarding the extent to which a six step approach to direct vocabulary…
Descriptors: Action Research, Vocabulary, Vocabulary Development, Direct Instruction
Report on Action Research: An Analysis of the Effects of a Six Step Approach to Direct Vocabulary Instruction on Student Achievement at the High School Level
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Haystead, Mark W. – Marzano Research Laboratory, 2009
This report describes the findings of an analysis of a series of action research projects conducted by Goshen Community Schools at the high school level. During the 2008-2009 school year, eight teachers at Goshen High School participated in independent action research studies regarding the extent to which a six step approach to direct vocabulary…
Descriptors: Action Research, Vocabulary, Vocabulary Development, Direct Instruction
Summary Report on Action Research: A Summary of Findings on a Series of Action Research Projects Conducted by Goshen Community Schools
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Haystead, Mark W. – Marzano Research Laboratory, 2009
This report summarizes the findings of an analysis of a series of action research projects conducted by Goshen Community Schools at the elementary, middle, and high school levels. During the 2008-2009 school year, 40 teachers participated in independent action research studies regarding the extent to which a six step approach to direct vocabulary…
Descriptors: Elementary School Students, Elementary School Teachers, Middle School Students, Middle School Teachers
Out-of-School-Time Programs: A Meta-Analysis of Effects for At-Risk Students
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Lauer, Patricia A.; Akiba, Motoko; Wilkerson, Stephanie B.; Apthorp, Helen S.; Snow, David; Martin-Glenn, Mya L. – Review of Educational Research, 2006
Schools and districts are adopting out-of-school-time (OST) programs such as after-school programs and summer schools to supplement the education of low-achieving students. However, research has painted a mixed picture of their effectiveness. To clarify OST impacts, this synthesis examined research on OST programs for assisting at-risk students in…
Descriptors: Program Effectiveness, High Risk Students, Summer Schools, Effect Size