hello, could you somebody help me to understand a difference between 'theory' and 'construct'? I cannot understand exactly what 'construct' means...

Need a little context?

I am reading articles on case study method for theory building. They emphasize the need of having a "prior view of the general construct or categories" before going to the field...

Sounds like they mean just having an idea of the layout or how things are generally done before doing research yourself to ensure that you use the most relevant methodology.