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…

When designing a chemistry education research study it is important that the researcher select or create assessment instruments and methodologies that are valid. This ensures that correct interpretations can be made from the data collected using the instrument or methodology. The two studies described here introduce a novel method for…

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…

This study intends to solve the problem that schools in Taiwan lack of the equipment for color management and inspection instruction and seek ways to improve learning results and reduce cognitive load. The researchers developed 3D courseware for color management and inspection through a research and development process. To further scrutinize the…

The main purpose of this research was to compare the communication media according to effective teaching. For this purpose, in the research, the mixed method, including quantitative and qualitative data collecting techniques, was applied. For the quantitative part of the research, the static group comparison design was implemented as one of the…

One of the major features of a computer based instruction (CBI) is its non-linear structure allowing learners the opportunity of flexible navigation to accommodate their own needs. However, this non-linear structure may cause problems such as inefficient navigation, being lost or cognitive overhead for some learners. The aim of this study is to…

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…

Describes a study of students at Buffalo State College that was conducted to compare achievement results between a class taught with computer-assisted instruction (CAI) and one taught without CAI. Computer attitudes are examined, sex differences are discussed, and pretest and posttest scores are analyzed. (17 references) (LRW)

Describes the use of a simulated learning environment (SLE) as an instructional aid in teaching multivariate statistics, particularly inferential statistics. A prototype microcomputer-based SLE called MVWORLD developed at Drexel University for upper level statistics courses is explained, and implementing a statistics laboratory for multivariate…

Analyzes the relative advantages of using text versus voice to convey verbal information in multimedia courseware and reports results of a study of undergraduates that investigated the effects of presentation method on learning and student preferences. Topics include realism, dual modality, controllability, content characteristics, learner…

Describes a study of 61 undergraduates that investigated the effects of hypermedia content-structure focusing on learner's structural knowledge acquisition, retention, and disorientation. Use of a Completely Randomized Multivariate Analysis of Variance design for hypothesis testing is explained and implications for hypermedia design are discussed.…

Describes study that examined the relationship between computer anxiety and the use of psychology courseware in an undergraduate abnormal psychology class using four computerized case simulations. Comparisons of pretest and posttest computer anxiety measures are described, and the relationship between computer anxiety/attitudes and computer use is…

Discussion of menu design strategies for computer-assisted instruction (CAI) focuses on a study that investigated whether menu design would affect undergraduate learners' usage patterns during a CAI lesson. Sequential versus random selection of options is discussed, and new measures for describing usage patterns in CAI are explained. (eight…

The effects of microcomputer use on preschoolers' knowledge of pre-reading concepts and attitudes toward microcomputers were investigated. Seventy-seven preschoolers were randomly assigned to three treatment conditions: (1) adult-assisted microcomputer instruction; (2) unassisted microcomputer use; and (3) no computer use. Analysis of pretest…

Discusses knowledge base development as a pedagogical activity and describes a study of eighth graders that compared three instructional conditions: (1) expert system development work; (2) problem-solving activities using computer-assisted instruction; and (3) a control group that used traditional noncomputer methods. Pretest and posttest scores…