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Download full textTindal, Gerald; And Others – 1983
The focus of this study was on the visual analysis of time series data for evaluating educational programs. Two characteristics of the data--changes in slope and variability--and two characteristics of evaluation--training in data utilization and the use of aimlines/decision rules--were manipulated. A total of 51 students and/or teachers in…
Descriptors: Data Analysis, Evaluation Methods, Evaluation Utilization, Program Effectiveness
Peer reviewedOttenbacher, Kenneth J. – Journal of Special Education, 1990
The agreement between visual analysis and the results of the split-middle method of trend estimation was examined using a set of 24 stimulus graphs and 30 raters. Results revealed poor agreement between the two methods, and low sensitivity, specificity, and predictive ability for visual analysis in relation to statistical inferences. (JDD)
Descriptors: Elementary Secondary Education, Estimation (Mathematics), Evaluation Methods, Graphs
Dwyer, Daniel J. – 1985
Designed to assess the effect of alternative display (CRT) screen sizes and resolution levels on user ability to identify and locate printed circuit (PC) board points, this study is the first in a protracted research program on the legibility of graphics in computer-based job aids. Air Force maintenance training pipeline students (35 male and 1…
Descriptors: Comparative Analysis, Computer Assisted Instruction, Computer Graphics, Evaluation Methods
