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Rhemtulla, Mijke; Little, Todd D. – Journal of Cognition and Development, 2012
Data collection can be the most time- and cost-intensive part of developmental research. This article describes some long-proposed but little-used research designs that have the potential to maximize data quality (reliability and validity) while minimizing research cost. In "planned missing data designs", missing data are used…
Descriptors: Data Collection, Reliability, Validity, Measures (Individuals)
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Kelcey, Ben; Carlisle, Joanne F. – Reading Research Quarterly, 2013
The purpose of this study is to contribute to efforts to improve methods for gathering and analyzing data from classroom observations in early literacy. The methodological approach addresses current problems of reliability and validity of classroom observations by taking into account differences in teachers' uses of instructional actions (e.g.,…
Descriptors: Data Collection, Data Analysis, Emergent Literacy, Reliability
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Barfield, J. P.; Rowe, David A.; Michael, Timothy J. – Measurement in Physical Education and Exercise Science, 2004
A pedometer is a practical, inexpensive tool used to measure physical activity. Bassett et al. (1996) found that interinstrument consistency of the Yamax Digi-Walker was higher than four other pedometers when measuring distance walked in adults. The purpose of this study was to investigate the interinstrument consistency of the Yamax pedometer in…
Descriptors: Physical Education, Physical Activities, Correlation, Grade 3