Six items were reverse scored. This is a newly developed measure and as yet no psychometric papers have been published on its reliability and validity; however, the psychometric properties of the younger age versions of this questionnaire (i.e., 4 months, 1 year and 2.5 years), have been found to be good (Majdandžić et al., 2015). The Cron- bach's alpha for the total Challenging Parenting Behaviour score was good (α1⁄4.86).