So it basic relates to taking the difference between educational completion prelockdown (counted with the midyear sample) to that postlockdown (mentioned by using the avoid-of-12 months decide to try): ? y we 2020 = y i 2020 ? avoid ? y we 2020 ? middle , in which y we is some conclusion scale to possess beginner i and new superscript 2020 indicates the treatment season. We up coming estimate an equivalent difference between the 3 y prior into the pandemic, ? y we 2017 ? 2019 . Such variations may then feel opposed inside an excellent regression specs, ? y i = ? + Z i ? ? + ? T we + ? i j , in which Z we is good vector off handle parameters, T we is actually indicative to your procedures seasons 2020, and ? we j is actually an independent and you can identically distributed mistake name clustered within school level. In our baseline specification, Z we is sold with a great linear trend toward season away from comparison and you may a changeable trapping the number of days among them assessment. To assess heterogeneity from the therapy impact, i create conditions communicating for every single pupil attribute X i towards the treatment indicator T i , ? y i = ? + Z we ? ? + ? X we + ? 0 T i + ? 1 T i X i + ? i j , where X i is the most parental studies, scholar intercourse, or earlier overall performance. As well, i imagine Eq. step one independently by the degrees and topic. In the Quand Appendix, part step three.2, we provide far more extensive determination and you can breakdown of one’s model and the excess strategies we use to manage losses to follow-upwards. Lees verder →