Shaheed Azaad, Ph.D.

Postdoctoral Researcher. University of Muenster, Germany.

Joint action, perception, social cognition

Email
sazaad@uni-muenster.de
Website
shaheedazaad.com
Office
217d, Fliednerstrasse 21, Muenster 48149

Broadly, I am interested in the perceptual processes that enable us to coordinate with others. For example, how we understand actions, or how social contexts might modulate our perception of our surroundings.

Most of my work is experimental, but I also use meta-analysis to test theoretical accounts of widely studied phenomena.

A priori power analysis for ANOVA interaction effects with the anovapowersim R package: a short introduction

Preprint | 2026

Although power analysis has become increasingly accessible over time, researchers still find it challenging to compute power for complex ANOVA interactions. anovapowersim is an R package that enables users to easily specify between, within, and mixed interactions of varying complexity and simulate power based on a target effect size.

Empirically derived effect size guidelines for social, individual differences, and cognitive psychology

Preprint | 2026

It is common and recommended practice in psychology to report standardised effect sizes alongside significance tests. As Cohen (1988) notes, the interpretation of these effect sizes as either small, medium, or large should depend on the field of research.

A test of seasonal effects on cognition in tournament chess players

Preprint | 2026

Research has revealed considerable seasonal variation in human behaviour and emotion. However, whether cognitive performance is similarly seasonal remains an open question.