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Ozturk, Elif – Online Submission, 2012
The present paper aims to review two motivations to conduct "what if" analyses using Excel and "R" to understand the statistical significance tests through the sample size context. "What if" analyses can be used to teach students what statistical significance tests really do and in applied research either prospectively to estimate what sample size…
Descriptors: Sample Size, Statistical Significance, Spreadsheets, Research Methodology
Lane, Forrest C.; Henson, Robin K. – Online Submission, 2010
Education research rarely lends itself to large scale experimental research and true randomization, leaving the researcher to quasi-experimental designs. The problem with quasi-experimental research is that underlying factors may impact group selection and lead to potentially biased results. One way to minimize the impact of non-randomization is…
Descriptors: Quasiexperimental Design, Research Methodology, Educational Research, Scores
Toiviainen, Hanna; Hoynalanmaa, Mikko; Lallimo, Jiri; Moen, Anne; Smordal, Ole; Morch, Anders; Toikka, Seppo – Online Submission, 2006
This deliverable has been produced in the context of the Knowledge-Practice Laboratory (KP-Lab) project, which is aimed at facilitating innovative practices of working with knowledge in higher education, teacher training, and professional networks. This deliverable is a synopsis of the first experiences encountered during the first 6 months of the…
Descriptors: Foreign Countries, Research and Development, Computer Mediated Communication, Research Methodology