Study title

This data collection contains data from two large experimental studies with 450 (experiment 1) and 370 (experiment 2) participants aged between 18 and 30 years. The data consist of accuracy and reaction time data from a two alternative forced choice multiplication task and either an animal or number Stroop task. The multiplication and Stroop tasks were interleaved on a trial-by-trial basis to examine the transfer of the congruency sequence effect (experiment 1) and the list-wide proportion congruency effect (experiment 2).Good mathematical skills are important for success in modern life, but many children leave school without learning the mathematics they need. Understanding the skills involved in learning mathematics can help provide the right support to improve mathematics learning for all children. In particular, many children struggle to learn number facts, such as multiplication tables. Good recall of number facts helps individuals to be able to focus on other aspects of mathematical problem solving, such as understanding the conceptual relationships involved, or selecting an appropriate solution strategy. It is therefore unsurprising that individuals with good overall mathematics achievement tend to have good number fact knowledge. The importance of good recall of multiplication tables has been recognised by the UK Government, who have recently introduced a new national multiplication tables test to be taken by all children aged 8- to 9-years old from 2020. There are a variety of approaches that can be used successfully to learn multiplication tables. To help children, many teachers and parents have increasingly turned to paper-based or computerised games and activities. However, at present we don't understand enough about the process of learning multiplication facts to know how to design these activities to be most effective in supporting learning. In particular, we don't know how features of these activities, such as whether children have to produce...