Meeting a crucial need for graduate students and newly minted researchers, this innovative text provides hands-on tools for generating ideas and translating them into formal theories. It is illustrated with numerous practical examples drawn from …
AutoResearch (autoresearch.me) provides a separate, free Research Plan Builder with no account required. The full AutoResearch system is in administrator-approved private beta, subject to compute, data and research-scope limits. This public …
Methods for planning sample size (SS) for the standardized mean difference so that a narrow confidence interval (CI) can be obtained via the accuracy in parameter estimation (AIPE) approach are developed. One method plans SS so that the expected …
ShareStats is the world’s largest public repository of open-source statistics assessment items, developed to support high-quality, data-informed education. This collaborative initiative brings together multiple Dutch universities and universities of …
ggplot2, as I’ve already made clear, is one of my favourite packages for R. And since that original post about ggplot2 remains one of my most frequently visited, I thought I would proceed with starting a series of posts called “Make It Pretty”, all …
A free reference guide to 25 Canadian immigration records on the Government of Canada's Open Government Portal (open.canada.ca): datasets published by IRCC, ESDC, the Immigration and Refugee Board, Statistics Canada and CBSA, and one Canada Gazette …
A free, self-guided spreadsheet exercise using an archived, official IRCC invited-candidate data release (2015 to July 31, 2026). Ten calculation questions and three interpretation prompts teach reproducible aggregation, rounded and suppressed data …
“… there's this desert prison, see, with an old prisoner, resigned to his life, and a young one just arrived. The young one talks constantly of escape, and, after a few months, he makes a break. He's gone a week, and then he's brought back by the …
We estimated the statistical power of the first and last statistical test presented in 697 papers from 10 behavioral journals. First tests had significantly greater statistical power and reported more significant results (smaller p values) than did …
Statistical power is an inherent part of empirical studies that employ significance testing and is essential for the planning of studies, for the interpretation of study results, and for the validity of study conclusions. This paper reports a …