“…In support of the measure's validity, a clinical sample of children diagnosed with various types of anxiety disorders was found to score high on particular sub-scales corresponding to their specific anxiety disorder (Nauta et al, 2004). The full version of the SCAS has demonstrated high internal consistency and its psychometric properties have been established across various populations, for instance, Australian (Spence, 1998), Dutch (Muris, Schmidt, & Merckelbach, 2000), Spanish (Tortella-Feliu, Balle, Servera, & Garc ıa De La Banda, 2005), Hellenic (Mellon & Moutavelis, 2007), German and Japanese (Essau, Sakano, Ishikawa, & Sasagawa, 2004), including a few developing countries, for example, Iran (Essau, Olaya, Pasha, O'Callaghan, & Bray, 2012) and South Africa (Muris, Schmidt, Engelbrecht, & Perold, 2002). Factor analyses across different studies replicated the six factors in the full measure.…”