“…Researchers have used numerous scales and items/questions for measuring children’s participation or their influence in parental purchase decisions. Dikcius et al (2017) identified more than 80 research instruments in use; however, the majority of the scales have been developed ad hoc and tested deploying only relatively simple procedures of reliability tests (exploratory factor analysis [EFA], Cronbach’s alpha) or even measured participation/influence with only one item. The range of used measures starts from the direct statements evaluated on a Likert-type scale or listed options, for example, “When my child uses this (pestering technique), I tend to yield (purchase)” (Shoham & Dalakas, 2006) or “Teen played a role in your decision to get him or her vaccinated or not to get him or her (vaccinated)” (Dorell, Yankey, Kennedy, & Stokley, 2013).…”