This fortnight’s Mind Matters column of Shyamanta Das, the Editor-in-Chief of the Open Journal of Psychiatry & Allied Sciences (OJPAS®) in Horizon, the Friday supplement with The Assam Tribune, titled “Behavioural problems” highlights the original article, “Content validity of a structured tool: knowledge questionnaire on behavioural problems” by Nabanita Barman and Mridula Saikia Khanikor, and published in the July-December 2020, Volume 10 Issue 2 of OJPAS®.