Instructional designers need to understand the internal processes of learning, identify learners' cognitive difficulties with those processes, and create strategies to help learners overcome those difficulties. Generative learning theory, one conception of human learning about cognitive functioning and process, emphasizes that meaningful learning…

This research is an effort to best utilize the interactive anatomical images for instructional purposes based on cognitive load theory. Three studies explored the differential effects of three computer-based instructional strategies that use anatomical cross-sections to enhance the interpretation of radiological images. These strategies include:…

Among the different types of experimental design are two general categories: true experimental designs and quasi- experimental designs. True experimental designs include more than one purposively created group, common measured outcomes, and random assignment. Quasi-experimental designs are commonly used when random assignment is not practical or…

The concept of control is fundamental to comparative research. In research designs where randomization of observational units is not possible, control has been exercised statistically from a single covariate by a process of residualization. The alternative, known as subclassification on the propensity score, was developed primarily for…

An analytical procedure that uses fall kindergarten assessment data to retroactively create equivalent comparison groups for longitudinal research and evaluation studies was designed and tested, and then analytically and empirically compared with random assignment to treatment. Students entering kindergarten in Hawaii are administered the Peabody…

A meta-analysis was conducted on 44 educational studies that used either a (labelled) Hawthorne control group, a manipulation of Hawthorne effects, or a group designed to control for the Hawthorne effect. The sample included published journal articles, ERIC documents or unpublished papers, and dissertations. The studies were coded on 20 variables,…

Various methods have been suggested for the analysis of data collected in research settings where random assignment of subjects to groups has not occurred. For the purposes of this paper the set of allowable nonrandomized designs is made up of those research designs where data are collected for one or more groups of subjects at two or more time…

A solution is proposed for analysis of variance procedures with missing cells, such as may occur when a control group is not assigned to any of the rows or columns of the various experimental groups. Mathematical models for two-way design are presented which define several variables; as well as row effect, column effect, and row and column…

THE PURPOSE OF THIS STUDY WAS TO FIND THE BEST MEANS FOR FACILITATING THE ADJUSTMENT OF INDIANS AND NON-INDIANS IN THE PUBLIC ELEMENTARY SCHOOLS. TAKING INTO CONSIDERATION DIFFERENCES IN CULTURE, VALUE SYSTEMS, LANGUAGE, MOTIVATIONS, AND BEHAVIOR. A BASIC STATEMENT OF DEFINITION AND EXPLANATION OF CULTURAL DIFFERENCES WAS PREPARED FOR TEACHER USE…

THIS REPORT IS THE FOURTH PROGRESS REPORT OF A STUDY OF HOW A PUPIL'S ACADEMIC ACHIEVEMENT IS AFFECTED BY PARTICIPATING IN A PRESCHOOL HEADSTART PROGRAM. THE ACHIEVEMENT OF THE HEADSTART GROUP IS BEING COMPARED WITH THE ACHIEVEMENT OF PUPILS WHO RECEIVED NO PRESCHOOL PROGRAM. THE PRESCHOOL INVENTORY TEST WAS USED TO MEASURE PUPIL ACHIEVEMENT IN 5…

THE PURPOSE OF THIS STUDY WAS TO COMPARE TWO TEACHING METHODS FOR DEVELOPING PRODUCTION TYPEWRITING ABILITY. THE TRADITIONAL, SPEED-EMPHASIS METHOD AND THE EXPERIMENTAL, PRODUCTION-EMPHASIS METHOD, WERE USED DURING 50-MINUTE PERIODS FOR 61 SESSIONS EACH SEMESTER WITH STUDENTS ENROLLED IN INTERMEDIATE TYPEWRITING AT INDIANA UNIVERSITY DURING…

THIS REPORT DESCRIBES A STUDY TO DETERMINE WHETHER PROGRAMED INSTRUCTION COULD BE USED TO IMPROVE THE TEACHING OF THE MANAGEMENT OF PATIENTS WITH GYNECOLOGIC NEOPLASMS TO JUNIOR MEDICAL STUDENTS. TWO PROGRAMED TEXTS WERE PREPARED--(1) A "CONTENT" TEXT, AN 830-FRAME LINEARLY PROGRAMED TEXT DESIGNED TO REPLACE CONVENTIONAL CLASSROOM…

A meta-analysis of 29 separate studies investigating pretest effects was conducted. Outcomes of the studies (achievement gains or attitude improvements) were computed as standardized differences between pretested and non-pretested groups. Eleven other variables were coded for each outcome. Initial descriptive statistics were indicative of…

In an attempt to improve Head Start evaluations, several methodological techniques are proposed. Since programs vary in approach, evaluations must be made on the success of the individual programs. Formulation of research questions should provide information as to the process and outcome of the program. To avoid experimenter bias, experimenters…