Moderators of the Effects of a Digital Parenting Intervention on Child Conduct and Emotional Problems Implemented During the COVID-19 Pandemic: Results From a Secondary Analysis of Data From the Supporting Parents and Kids Through Lockdown Experiences (SPARKLE) Randomized Controlled Trial - Nikola Pokorna; Melanie Palmer; Oliver Pearson; Nicholas Beckley-Hoelscher; James Shearer; Katarzyna Kostyrka-Allchorne; Olly Robertson; Marta Koch; Petr Slovak; Crispin Day; Sarah Byford; Polly Waite; et al. (JMIR Pediatrics and Parenting, 2024)