Schematic representation of measured variables in the current study: exogenous and endogenous variables. Nokuthula SacoloHlengiwe ChungMin-Huey ChuHsin LiaoYuan-Mei ChenChiung-Hua OuKeng-Liang ChangLu-I ChouKuei-Ru 2013 <p>Schematic representation of measured variables in the current study: exogenous and endogenous variables.</p>