This is a summary of 300 plus studies from Marzano Research Laboratory (MRL) on instructional strategies. This report synthesizes a series of action research projects conducted between the fall of 2004 and the spring of 2009. The data used for analysis can be found in MRL's Action Research Meta-Analysis Database. Appended are: (1) Instructions for…

The study investigated the effect of note-taking on comprehension of lectures by 44 undergraduate EFL students who are in the first year of their undergraduate level in the Department of Foreign Language Education in Middle East Technical University. The participants were divided into two groups, namely experimental and control groups. The…

Purpose: This study assessed the effectiveness of Active Start, a community-based behavior change and fitness program, designed to promote physical activity among sedentary community-dwelling older adults. Design and Methods: A quasi-experimental design was used. Data were analyzed using a within-group pretest-post-test design to calculate changes…

This study investigated the effect of metaconceptual teaching interventions on students' understanding of force and motion concepts. A multimethod research design including quasi-experimental design and case study designs was employed to compare the effect of the metaconceptual activities and traditional instruction and investigate students'…

This study is a third in a series of studies that examined students' information seeking and problem solving behaviors while interacting with one of two types of web-based representations of an ill-structured instructional design case: hierarchical (tree-like) and heterarchical (network-like). A Java program was used to track students' hypermedia…

Theory of distributed cognition unveils the answer to what constitute distributed cognition. However, how the distributed cognition in web-based learning environment spreads out still remains a black box. This study sought to deepen our understanding on how learners' knowledge disseminates online by examining the impacts of three kinds of…

The events of September 11, 2001, seemingly changed the way Americans viewed the world and their sense of vulnerability. What is not clear is the impact 9/11 had on different age groups shortly after the attacks. A quasi-experimental design was employed to study the effects of 9/11 on 298 older and younger adults. Drawing on the work of Leon…

The planning of adequate control groups is a central aspect of educational research. Didactical studies, however, are often field studies encountering many problems of everyday classroom teaching? Recent research has indicated that teachers and their beliefs have an enormous influence on learning and retention. Taking this line of evidence…

These two recipients of this year's Alan C. Purves Award reflect on their work (reported in "RTE" Vol. 41, No. 3, pp. 269-303) on "A Cognitive Strategies Approach to Reading and Writing Instruction for English Language Learners in Secondary School" and the lessons they learned from their original research study as they tried to…

Layoffs and employment changes caused by current economic conditions have significant effects on employee work behavior and emotions as well as organizational outcomes. We examined the relationships between measures of job insecurity, organizational commitment, turnover, absenteeism, and worker performance within a manufacturer in Chapter 11…

This study explored the effects of a cognitive intervention program, Cognitive Acceleration in Science at Key Stage 1 (CASE@KS1), on both the thinking skills and motivation of a rural population in the United Kingdom. It used a quasi-experimental design and measures of both near and far transfer in order to replicate the evaluation of this program…

This study aimed at experimentally investigating the moderating role of instructional conceptions on the effectiveness of powerful learning environments (PLE) designed in line with the four-component instructional design model (4C/ID-model). The study also investigated the influence of learning in a 4C/ID PLE on students' instructional…

This study is aimed at investigating students' annotation behaviors and their effects on learning achievement with pre-reading (reading before class) exercises and Web-based sharing mechanisms. An 8-week quasi-experiment was conducted with 125 sixth-grade elementary school students. The study shows the following results. First, a significant…

Objective: This study examines the impact of Children's Advocacy Centers (CAC) and other factors, such as the child's age, alleged penetration, and injury on the use of forensic medical examinations as part of the response to reported child sexual abuse. Methods: This analysis is part of a quasi-experimental study, the Multi-Site Evaluation of…

A community-based intervention study for suicide prevention was conducted in six towns (total population 43,964) in Akita Prefecture of Japan according to a quasi-experimental design to reduce suicide rates in rural towns. Public awareness raising activities using a health promotion approach emphasizing the empowerment of residents and civic…