This dataset is designed for learning to use Bayesian Inference, specifically in the context of an Independent Samples t test. The dataset is a subset of data derived from the 2016-2017 National Child Measurement Programme (Year 6), and the example will examine whether there is a significant difference in mean BMI between boys and girls in their final year of primary school. The dataset file is accompanied by a Teaching Guide, a Student Guide, and a How-to Guide for IBM® SPSS®