This OSF repository contains the experimental materials, raw data and statistical data for the study "The impact of semantic matching on the additive effects of object-based attentional selection". The repository contains three folders. One folder is used to store the experimental materials files for two experiments (Experiment 1; Experiment 2). One folder is used to store the raw data files for two experiments (Experiment 1; Experiment 2) and two statistical data for each experiment (Experiment 1; Experiment 2).