Publication Date
| In 2026 | 0 |
| Since 2025 | 0 |
| Since 2022 (last 5 years) | 0 |
| Since 2017 (last 10 years) | 71 |
| Since 2007 (last 20 years) | 405 |
Descriptor
| Control Groups | 425 |
| Statistical Significance | 425 |
| Experimental Groups | 354 |
| Pretests Posttests | 206 |
| Statistical Analysis | 173 |
| Foreign Countries | 158 |
| Comparative Analysis | 156 |
| Teaching Methods | 120 |
| Quasiexperimental Design | 113 |
| Scores | 104 |
| Intervention | 87 |
| More ▼ | |
Source
Author
Publication Type
Education Level
Audience
| Researchers | 2 |
| Practitioners | 1 |
| Teachers | 1 |
Location
| Turkey | 39 |
| Jordan | 18 |
| Saudi Arabia | 10 |
| Texas | 8 |
| Nigeria | 6 |
| Australia | 5 |
| Florida | 5 |
| North Carolina | 5 |
| Spain | 5 |
| United States | 5 |
| California | 4 |
| More ▼ | |
Laws, Policies, & Programs
| No Child Left Behind Act 2001 | 4 |
| Elementary and Secondary… | 2 |
| Elementary and Secondary… | 1 |
| Individuals with Disabilities… | 1 |
| Temporary Assistance for… | 1 |
Assessments and Surveys
What Works Clearinghouse Rating
| Meets WWC Standards without Reservations | 8 |
| Meets WWC Standards with or without Reservations | 12 |
| Does not meet standards | 7 |
Download full textBernstein, Lawrence; Rappaport, Catherine Dun; Olsho, Lauren; Hunt, Dana; Levin, Marjorie – National Center for Education Evaluation and Regional Assistance, 2009
This report summarizes the findings from a national evaluation of mentoring programs funded under the U.S. Department of Education's Student Mentoring Program. The impact evaluation used an experimental design in which students were randomly assigned to a treatment or control group. Thirty-two purposively selected School Mentoring Programs and…
Descriptors: Control Groups, Research Design, School Schedules, Mentors
Tienken, Christopher H.; Maher, James A. – RMLE Online: Research in Middle Level Education, 2008
The issue of lower than expected mathematics achievement is a concern to education leaders and policymakers at all levels of the U.S. PK-12 education system. The purpose of this quantitative, quasi-experimental study was to determine if there was a measurable difference in achievement on the mathematics section of the state test for students (n =…
Descriptors: Control Groups, Mathematics Curriculum, Mathematics Achievement, Academic Achievement
Stebens, L. Duane; Belden, Bernard R. – J Reading, 1970
Descriptors: College Freshmen, Comprehension, Control Groups, Reading Instruction
Direct linkSaxena, Varun; Natarajan, Pradeep; O'Sullivan, Patricia S.; Jain, Sharad – Anatomical Sciences Education, 2008
Medical schools have reduced the time allotted to anatomy instruction. Consequently, schools engage students in more independent settings using information and communication technologies (ICT). There has been limited research in the use of video aids, a type of ICT, to enhance anatomy examination performance. The objective of this study is to…
Descriptors: Video Technology, Experimental Groups, Control Groups, Medical Students
Raffeld, Paul; Reynolds, William M. – 1977
The pretest-posttest design referred to as Design 2 by Campbell and Stanley (1963) is commonly used in educational research and evaluation. The tenability of the assumption of a zero population difference commonly used with this design is questioned. A nonzero population estimate based on the mean difference observed in test-retest reliability…
Descriptors: Control Groups, Correlation, Experimental Groups, Hypothesis Testing
Peer reviewedZupkis, Robert V. – Reading Teacher, 1970
Descriptors: Control Groups, Data Analysis, Experimental Groups, Hypothesis Testing
Hoffman, August; Wallach, Julie – Community College Enterprise, 2007
The purpose of the current study is to explore the effects of community service work and community involvement on perceptions of self-entitlement--expectations of others to do things for oneself--among undergraduate students. Over the course of a 16-week semester, 26 randomly selected subjects (20 community college psychology students and six…
Descriptors: Control Groups, Undergraduate Students, Community Involvement, Service Learning
Hunt, Thomas C.; Weber, Larry J. – 1969
Increased student demand for foundations courses, coupled with a lack of qualified staff, made it necessary to provide workable alternatives to traditional instruction. Substantial adjustments could not be made until the efficacy of the new methods could be documented. The study compared cognitive and attitudinal outcomes of two types of classes,…
Descriptors: Analysis of Covariance, Attitude Measures, Cognitive Tests, Comparative Analysis
Estes, Gary D.; Anderson, Judith I. – 1978
An empirical study was conducted in order to obtain treatment effect estimates with the Special Regression model for groups in which there was no treatment. General mathematics test scores were obtained from 730 ninth graders in city schools somewhat similar to Title I schools, but in which no special treatments were given. Hypothetical…
Descriptors: Achievement Gains, Arithmetic, Compensatory Education, Control Groups
Vermillion, James E. – 1980
The presence of artifactual bias in analysis of covariance (ANCOVA) and in matching nonequivalent control group (NECG) designs was empirically investigated. The data set was obtained from a study of the effects of a television program on children from three day care centers in Mexico in which the subjects had been randomly selected within centers.…
Descriptors: Analysis of Covariance, Control Groups, Error of Measurement, Experimental Groups
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
Puma, Michael; Tarkow, Allison; Puma, Anna – Grantee Submission, 2007
Background: This study evaluated the impact on student's writing ability of a structured writing program, called "Writing Wings," for 3rd, 4th, and 5th graders developed by the Success For All Foundation (SFAF). Writing is a critical skill for success in school. Purpose: The study was intended to answer one confirmatory question,…
Descriptors: Control Groups, Research Design, Childrens Writing, Writing Attitudes
Saari, Heikki – International Journal of Science Education, 2003
The purpose of this study was to construct and study the impact of a research-based sequence for teaching the concept of modelling to seventh-grade science students. We identified students' notions of models and the aspects of school science to be addressed regarding the model concept, which were then taken into account when we planned the…
Descriptors: Control Groups, Science Activities, Educational Research, Science Instruction
Schumacker, Randall E. – 1992
The regression-discontinuity approach to evaluating educational programs is reviewed, and regression-discontinuity post-program mean differences under various conditions are discussed. The regression-discontinuity design is used to determine whether post-program differences exist between an experimental program and a control group. The difference…
Descriptors: Comparative Analysis, Computer Simulation, Control Groups, Cutting Scores
Demirci, Neset – Turkish Online Journal of Educational Technology - TOJET, 2005
The aim of this study was to incorporate a web-assisted program to normal traditional classroom instruction and study about students' misconceptions in force and motion concepts in physics. The Web-based physics program was incorporated with the traditional lecture. Specifically, 30% of class time was allocated for using this tutorial program, and…
Descriptors: Misconceptions, Motion, Physics, Scientific Concepts
