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Myint, Leslie; Hadavand, Aboozar; Jager, Leah; Leek, Jeffrey – Journal of Statistics Education, 2020
We performed an empirical study of the perceived quality of scientific graphics produced by beginning R users in two plotting systems: the base graphics package ("base R") and the ggplot2 add-on package. In our experiment, students taking a data science course on the Coursera platform were randomized to complete identical plotting…
Descriptors: Statistics, Randomized Controlled Trials, Teaching Methods, Courseware
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Cosgun Ögeyik, Muhlise – Innovations in Education and Teaching International, 2017
In English language teaching settings, the type of lecture is important since students should be exposed to instantly recognisable linguistic features in the target language through interaction. This quasi-experimental study was designed to compare the effectiveness of PowerPoint presentations (PPP) and conventional lecture/discussion sessions on…
Descriptors: Pedagogical Content Knowledge, Conventional Instruction, Lecture Method, Instructional Effectiveness
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Carole R. Beal; Rena Walles; Ivon Arroyo; Beverly P. Woolf – Journal of Interactive Online Learning, 2007
We report the results of a controlled evaluation of an interactive on-line tutoring system for high school math achievement test problem solving. High school students (N = 202) completed a math pre-test and were then assigned by teachers to receive interactive on-line multimedia tutoring or their regular classroom instruction. The on-line tutored…
Descriptors: Mathematics Achievement, Tutoring, Online Courses, Electronic Learning