Complex sentence: Like all hypotheses, a working hypothesis is constructed as a statement of expectations, which can be linked to the exploratory research purpose in empirical investigation and are often used as a conceptual framework in qualitative research.
Split into simpler sentences: Like all hypotheses, a working hypothesis can be constructed as a statement of expectations. They can be linked to the exploratory research purpose in empirical investigation, and are also often used as a conceptual framework in qualitative research.