# title: "Reading Scores and Class Size: A Classroom Study" author: A. Researcher bibliography: refs.bib abstract: | We compare reading scores in small and large classes in 80 schools. Pupils in small classes score 27% higher on the end-of-year test.

# Introduction

Class size is a long-standing question in education research [@alpha2015; @beta2020]. A recent review reaches the opposite conclusion [@phantom2022]. We propose a novel measure of classroom attention. The design is described in @sec:design and the scores are in @fig:nope.

# Design {#sec:design}

We observed 80 schools during one school year, and 45% (30/80) of them had small classes. Scores are significantly higher in small classes. The prediction error is summarised by the RMSE [citation needed]. The observation protocol is available upon request.

# TODO tune the model; contact @notakey
score = 1 + 1

: Mean reading scores by class size, in points out of 100. {#tbl:scores}

# Conclusion

Small classes go together with higher reading scores in these schools.