This study aimed to observe whether the learning environment created by digital classroom technologies has any effect on the academic success and online technologies self-efficacy of 7th grade students. In this study, an experimental design with a pre-test/post-test control group was used. The research was conducted with 58 students in a secondary school of Ankara. At the beginning of the study...

The existing literature acknowledges that a mismatch between the experimenter’s and the subjects’ models of an experimental task can adversely affect the interpretation of data from laboratory experiments. We discuss why the two common experimental designs (between-subjects and within-subjects) used to conduct experiments may fail to sufficiently account for this concern. An alternative design ...

The purpose of this study was to explore the impact of Digital storytelling (DST) on the academic achievement, critical thinking, and learning motivation of senior high school students learning English as a foreign language. The one-year study adopted a pretest and posttest quasi-experimental design involving 110 10th grade students in two English classes. The independent variable was informati...

Some branches of phonetics prefer experiments that feature a large number of repetitions and only few unique items. This paper discusses this relatively common experiment design choice, arguing that repetitions do not always help for drawing sound conclusions from phonetic data. It is recommended that phonetic experiments should be designed with less repetitions and more distinct items.

Goodness-of-fit tests are proposed for the assumption of normality of random errors in experimental designs where the variance of the response may vary with the levels of the covariates. The exact distribution of standardized residuals is used to make the probability integral transform for use in tests based on the empirical distribution function. A different mean and variance is estimated for ...

This paper discusses our preliminary analysis of how designer and non-designer participants discussed and engaged in design activity. For this research, we employed two design study experiments that included a total of forty-eight participants. In our preliminary findings we found differences between designers and nondesigners in how a design activity is analyzed. The more significant prelimina...

Although experimentation is a frequent activity of engineers, they usually use primitive strategies to carry on their experiments. A survey identifies the needs of using an efficient and practical technique for the experimentation. Although Six Sigma improvement initiative emphasized the use of Design of Experiments (DoE) for experimentation, engineers still consider it a difficult technique to...

A new wind tunnel testing process under development at NASA Langley Research Center, called Modern Design of Experiments (MDOE), differs from conventional wind tunnel testing techniques on a number of levels. Chief among these is that MDOE focuses on the generation of adequate prediction models rather than high-volume data collection. Some cultural issues attached to this and other distinctions...

This paper analyzes experimentally how the interaction of task meaning and peer presence affects work effort. We build on the experimental designs of Falk and Ichino (2006) and Ariely et al. (2008). Confirming previous results from the literature, we find positive peer effects and negative effects of low task meaning. In addition, we find that peer effects are even stronger if task meaning is l...