Social and psychological effects of the COVID-19 pandemic on middle-school students: Attendance options and changes over time.

= .06). A second set of analyses employed a longitudinal design and compared 174 children who completed the test battery in November 2019, 3 months before the start of the pandemic, and then again in November 2020, 9 months after the start of the pandemic. Three out of nine outcomes displayed significant change: A small reduction in parental support and modest increments in neutralization beliefs and cognitive impulsivity. Although there were no statistically significant differences between the three instructional conditions and only a handful of relatively small and predictable longitudinal changes between November 2019 and November 2020, there were a fair number of individual students who experienced moderate (≥ 50%) increases in depression (17.6%), cognitive impulsivity (15.8%), and bullying victimization (11.7%). (PsycInfo Database Record (c) 2021 APA, all rights reserved).