Statistics in Psychology and Education

By S. Mangal. 2004

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Rethinking Convenience Sampling: Defining Quality Criteria (2012, background): “Mangal (2002) points out that it is quite impractical and inessential to approach every person fitting our research design.”
Ten-Year Effects of the ACTIVE Cognitive Training Trial on Cognition and Everyday Functioning in Older Adults (2014, background): “66 SEM of the baseline score.(33) For the purposes of this study, this was considered maintenance of performance.”
Prospective impact of Corona virus disease (COVID-19) related lockdown on shrimp aquaculture sector in India – a sectoral assessment (2020, unknown): “It was calculated as percentage score and the scale value was obtained by applying Scale Conversion Table given by Garret and Woodworth (1969).”
On the validity of useless tests (2016, background): “One described validity as the degree to which a test ‘measures what it purports to measure’ (e.g. Garrett, 1937; Smith & Wright, 1928); the other referred to validity in correlational terms, such as Guilford (1946) who succinctly stated, ‘a test is valid for anything with which it correlates’ (p.…”
Statistical Risk Assessment: Old Problems and New Applications (2006, background): “However, the marginal distributions of a table with only 1 degree of freedom place constraints on the phi coefficient by imposing an upper limit on the possible relation observed in the table (Guilford, 1965).”