Generalized linear mixed models (GLMMs) estimate fixed and random effects and are
especially useful when the dependent variable is binary, ordinal, count or quantitative but …

Many conspiracy theories appeared along with the COVID-19 pandemic. Since it is
documented that conspiracy theories negatively affect vaccination intentions, these beliefs …

Background: Repeated measures designs are commonly used in health and social sciences
research. Although there are other, more advanced, statistical analyses, the F-statistic of …

Highlights•Supervised machine learning is frequently used in psychology
research.•Machine learning offers advantages over traditional statistical analyses.•Theory …

Introduction One-way repeated measures ANOVA requires sphericity. Research indicates
that violation of this assumption has an important impact on Type I error. Although more …

Arguments that machine learning (ML) is facing a reproducibility and replication crisis
suggest that some published claims in research cannot be taken at face value. Concerns …

Updated with new chapters on multiple regression and high-level research methods, this 4th
edition of Research Methods and Statistics in Psychology delivers all you need to develop a …

The replicability crisis has drawn attention to numerous weaknesses in psychology and
social science research practice. In this work we focus on three issues that cannot be …

Observational studies comparing child outcomes in early care and education classrooms of
differing quality are often confounded by between‐child differences. A within‐child design …

The incorporation of sex and gender (S/G) related factors is commonly acknowledged as a
necessary step to advance towards more personalized diagnoses and treatments for …