only the relationships between the measures and these first-order sub dimensions but also about the relationships between the first-order sub dimensions and the second-order construct they measure. My colleagues and I (Jarvis et al. forthcoming) provide several examples of marketing constructs conceptualized at this level of abstraction (e.g.,market orientation,trust,helping behaviour, perceived risk,etc.) and call attention to the fact that the measurement model relating the first-order sub dimensions to the measures need not be the same as the measurement model relating the second-order construct to its first-order sub dimensions. Although one could reasonably argue that all constructs should be unidimensional,our review suggests that such a view is often inconsistent with the way constructs are defined in the marketing literature. So as a practical matter, this is something authors should think about carefully