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Download full textDayton, C. Mitchell – 2002
This Digest, intended as an instructional aid for beginning research students and a refresher for researchers in the field, identifies key factors that play a critical role in determining the credibility that should be given to a specific research study. The needs for empirical research, randomization and control, and significance testing are…
Descriptors: Credibility, Data Analysis, Reliability, Research
Helberg, Clay – 1996
Abuses and misuses of statistics are frequent. This digest attempts to warn against these in three broad classes of pitfalls: sources of bias, errors of methodology, and misinterpretation of results. Sources of bias are conditions or circumstances that affect the external validity of statistical results. In order for a researcher to make…
Descriptors: Causal Models, Comparative Analysis, Data Analysis, Error of Measurement
