Oscar L. Olvera Astivia

Heteroskedasticity in Multiple Regression Analysis: What it is, How to Detect it and How to Solve it with Applications in R and SPSS

Oscar L. Olvera Astivia, Bruno D. Zumbo · Scholarworks (University of Massachusetts Amherst) · 2020 · 138 citations · Full text

The impact of workplace violence on medical-surgical nurses’ health outcome: A moderated mediation model of work environment conditions and burnout using secondary data

Farinaz Havaei, Oscar L. Olvera Astivia, Maura MacPhee · International Journal of Nursing Studies · 2020 · 133 citations · Full text

The relationship between statistical power and predictor distribution in multilevel logistic regression: a simulation-based approach

Oscar L. Olvera Astivia, Anne Gadermann, Martin Guhn · BMC Medical Research Methodology · 2019 · 111 citations · Full text

Population models and simulation methods: The case of the Spearman rank correlation

Oscar L. Olvera Astivia, Bruno D. Zumbo · British Journal of Mathematical and Statistical Psychology · 2017 · 74 citations

A Methodology for Zumbo’s Third Generation DIF Analyses and the Ecology of Item Responding

Bruno D. Zumbo, Yan Liu, Amery D. Wu et al. · Language Assessment Quarterly · 2015 · 72 citations