I am doing a master's thesis on the roles played by Perceived Bank Image, Perceived Service Quality and Perceived Satisfaction in predicting Customer Loyalty. My questionnaire consists of several questions for each of these constructs. A 5-point Likert scale is used to measure responses for each question.
I would like to conduct correlation and regression analyses to determine the strength of these relationships in SPSS. The process is pretty straightforward for constructs with a single question. With multiple questions however, I do not know how to properly proceed. Should I compute a composite variable, or should I simply analyze all the sub-items together?