Extensions of Differences in Differences (statistics) 1985 – 2011

The Difference-in-Differences (DiD) statistical method has now been in use for almost 30 years. see: ‘Using the Longitudinal Structure of Earnings to Estimate the Effect of Training Programs‘ by Orley Ashenfelter; David Card, The Review of Economics and Statistics, Vol. 67, No. 4. (Nov., 1985), pp. 648-660. (page 5 in the .pdf). And the Difference-in-Differences […]

Personifications of Death and Death Anxiety Survey

A look back at yet another presumably surprising discovery: “Personifications of Death and Death Anxiety,” Richard Lonetto, Journal of Personality Assessment, vol. 46, no. 4, 1982. The author, at the University of Guelph, explains: “University students, graduate nursing students, and funeral service students completed Templer’s Death Anxiety Scale (DAS) and a Death Personification Exercise (DPE). […]

From the mouths of babes: An existential statistic [British]

The UK’s Quarterly Labour Force Survey includes a variable called “resbby — Whether respondent is baby“. The July-September 2011 survey reports that the value of this variable is YES for 228 of the 105488 respondents. Here is the pertinent detail from that report: Here is that same detail, this time including the full graph: A year later, […]

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