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Lewis, Christine; Packman, Ann; Onslow, Mark; Simpson, Judy M.; Jones, Mark – American Journal of Speech-Language Pathology, 2008
Purpose: The aims of this study were to evaluate the efficacy of telehealth delivery of the Lidcombe Program of Early Stuttering Intervention, compared with a control group, and to determine the number of children who could be regarded as "responders." Method: A speech-language pathologist provided telehealth delivery of the Lidcombe…
Descriptors: Foreign Countries, Speech Language Pathology, Control Groups, Early Intervention
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
Dawson, Thomas E. – 1997
Counseling psychology is a relatively new field that is gaining autonomy and respect. Unfortunately, research efforts in the field may lack an appropriate research design. This paper considers some of the more common types of research design and the associated threats to their validity. An example of each design type is drawn from the counseling…
Descriptors: Case Studies, Cohort Analysis, Comparative Analysis, Control Groups
Dynarski, Mark – 1994
Since 1988 five evaluations of Federal demonstration programs in education have been implemented that had random-assignment designs to measure program impacts. The implementation of two of these evaluations, the evaluation of the School Dropout Demonstration Assistance Program and that of the Alternative Schools Random Assignment Program, are…
Descriptors: Control Groups, Demonstration Programs, Dropout Programs, Evaluation Methods
King, Irvin L.; Emesiochl, Masa-Aki – 1991
When the Trust Territory of the Pacific Islands gradually dissolved in the 1980s, the Republic of Palau assumed a greater responsibility for its own education system. In order to monitor the mathematical achievement of elementary school students during the transition from external to local control of educational procedures, basic skills…
Descriptors: Control Groups, Elementary Education, Elementary School Mathematics, Experimental Groups
Schwind, Hermann – Canadian Training Methods, 1975
Descriptors: Control Groups, Educational Programs, Educational Research, Evaluation Methods
Olejnik, Stephen F.; Algina, James – 1983
Parametric analysis of covariance was compared to analysis of covariance with data transformed using ranks. Using a computer simulation approach the two strategies were compared in terms of the proportion of Type I errors made and statistical power when the conditional distribution of errors were: (1) normal and homoscedastic, (2) normal and…
Descriptors: Analysis of Covariance, Control Groups, Data Collection, Error of Measurement
Danforth, Diana M.; And Others – 1978
Adult leaders from 14 counties, divided into matched participating (57) and control (54) groups, were surveyed to evaluate whether Cooperative Extension Service programs on land use planning in Arkansas resulted in increased knowledge and more favorable attitudes toward such planning. Participants filled out attitudinal questionnaires before…
Descriptors: Agriculture, Attitudes, Community Leaders, Conservation (Environment)
Banta, Trudy W.; Lawson, Sandra S. – 1980
In September 1978, the Lenoir City (Tennessee) school system initiated in two elementary schools a volunteer tutoring program called the Retirement Power in Education Project (RPIE). Fourteen volunteers, including twelve retirees, were trained to use Laubach reading materials in tutoring fourth and seventh graders. In evaluating the project one…
Descriptors: Control Groups, Elementary Education, Older Adults, Program Development
EDELMAN, LILY – 1967
THIS PROJECT TESTED WHETHER THE TELE-LECTURE AND ELECTROWRITER COULD (1) BE USED EFFECTIVELY FOR THE SIMULTANEOUS INSTRUCTION OF ADULTS IN MULTIPLE REMOTE AREAS, AND (2) USED BY A MASTER TEACHER TO PROVIDE LEARNING EXPERIENCE FOR ADULTS WHICH IS AT LEAST AS EFFECTIVE AS FACE-TO-FACE INSTRUCTION. UTILIZING AMPLIFICATION AND MICROPHONE TRANSMISSION…
Descriptors: Adult Education, Comparative Analysis, Control Groups, Educational Experiments
Jenkins, John David – 1969
This study compared teacher demonstrations with a slide-tape methods of presenting demonstrations in graphic arts. It involved 134 eighth grade students and four teachers in four schools. Random assignment to treatments was made by classes. Four demonstrations randomly selected from a group were (1) composing a line of type, (2) locking-up a type…
Descriptors: Comparative Analysis, Control Groups, Demonstrations (Educational), Doctoral Dissertations
Sullivan, Dorothy D.; Cardozier, V.R. – 1966
An experiment was conducted to determine whether special reading instruction integrated with agricultural instruction would result in improved reading ability and increased achievement in subject matter. random assignment was made of vocational agriculture classes in 12 Maryland schools to experimental and control groups. Units on soil sampling…
Descriptors: Academic Achievement, Agricultural Education, Comparative Analysis, Control Groups
Bartlett, Dale L. – 1969
This study, conducted over a period of three weeks at the University of Kansas, attempted to determine whether knowledge of musical structure would effect greater understanding and, eventually, enjoyment of music. Experimental and control groups comprising freshmen who were not enrolled in a music course listened repeatedly to excerpts of…
Descriptors: Affective Behavior, Auditory Training, Cognitive Development, Control Groups
Bohac, Joseph J.; Frank, Peter R. – 1969
The aims of this study were to: (1) investigate the effectiveness of teaching machines in teaching vocabulary, (2) examine the relationships between various anxiety levels and the effectiveness of the teaching machine and the relationships between extroversion and introversion and the effectiveness of the machine, and (3) examine the possible…
Descriptors: Anxiety, Control Groups, English Instruction, Experimental Groups
Elardo, Richard – 1971
This study assessed the effectiveness of five hours of distributed training on three-year-old children's comprehension and production of the passive, negative, possessive and negative passive syntactic structures. A comprehension test identified 20 children who did not evidence understanding of these structures. Subject were randomly assigned to…
Descriptors: Comprehension, Control Groups, Experimental Groups, Experimental Programs

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