• Managing behaviour is a complex component of the teaching process and one that teachers consistently identify as an area of great concern. This study aimed to examine teachers' perceptions regarding their competence for managing the challenging behaviour of young children and to identify the factors that affect these beliefs. A total of 204 preschool teachers working in Kindergarten Rijeka, Croatia participated. Teachers completed an exploratory survey of self-perceptions of competence in managing the challenging behaviours encountered in their classrooms. Factor analysis revealed a one-factor structure for self-perceived competence, and all scales showed good psychometric properties. Preschool teachers' assessment of their own competence in managing challenging behaviour was explained by the level of support they received from other professionals when faced with children's challenging behaviour and prior coursework in classroom management. Participants with higher levels of professional support and more coursework in classroom management estimated themselves to be more competent in managing challenging behaviour. The results suggest that Croatian preschool teachers need training in classroom management and greater access to professional support personnel when working with students with challenging behaviours.Keywords: classroom management, preschool teachers, self-perceived competence, behaviour management • Obvladovanje vedenja je kompleksna komponenta procesa poučevanja in eno izmed področij, ki ga vzgojitelji označujejo kot enega izmed področij skrbi. Namen raziskave je bil ugotoviti, kako vzgojitelji samoocenjujejo svoje kompetence pri obvladovanju neželenega vedenja predšolskih otrok, in ugotoviti dejavnike, ki vplivajo na ta prepričanja. V okviru raziskave so sodelovali 204 vzgojitelji iz Vrtca Reka, Hrvaška. Vzgojitelji so izpolnili vprašalnik o samooceni njihovih kompetenc pri obvladovanju neželenega vedenja, ki so ga zaznali v svoji vrtčevski skupini. Faktorska analiza je pokazala enofaktorsko strukturo za samooceno kompetenc, pri čemer so lestvice pokazale dobre psihometrične značilnosti. Ocena vzgojiteljev glede lastnih kompetenc pri obvladovanju neželenega vedenja otrok je pojasnjena z ravnjo podpore, ki jo dobijo od drugih strokovnjakov, ko so soočeni z neželenim vedenjem, in s predhodnim delom pri vodenju skupine. Udeleženci z višjo ravnjo strokovne podpore in več predhodnega dela pri vodenju skupine so se samoocenili kot kompetentnejši pri obvladovanju neželenega vedenja otrok. Rezultati kažejo, da hrvaški vzgojitelji potrebujejo usposabljanja za vodenje razreda/skupine in večji dostop do strokovnega podpornega osebja, ko delajo z učenci z neželenimi vedenji.Ključne besede: vodenje razreda, vzgojitelji, samoocena kompetenc, obvladovanje vedenja c e p s