Service quality
We refined prior ServQ measures [54] and [55] to represent the quality of the support that system users receive from the IS department and IT support staff. In line with prior studies, a 22-item scale was used to capture the five dimensions of ServQ: tangibility, reliability, responsiveness, assurance, and empathy. Researchers suggest that ServQ should be a formative, higher-order construct (e.g., [64], [65] and [66]) because the dimensions generate the overall perception of ServQ. Thus, we modeled ServQ as a second-order formative construct composed of the five first-order dimensions, whereas the first-order dimensions are operationalized as reflective constructs.