open-minded, literature review and GT

Christina Pikas wrote "Random observation: true grounded theory vs. foreshadowed problems" on her blog to talk about the "pre-knowledge" issue.

Actually, I had a similar question before. Should a researcher be Tabula rasa? Applying Grounded Theory approach is not to say we go into the field what we research about without pre-knowledge or views. It's about, as a researcher, we need to recognise this issue and interpret data by exploring its meaning in that researched context. We can wrote down what we had known and what views we have, we also can compare some existent literatures or opinions, but it shouldn't affect the data analysis. 

As May (1986: 149) noted:

The literature review in a grounded theory project neither provides key concepts nor suggests hypotheses as it does in hypothetico-deductive research. A lengthy or uncritical literature review in a grounded theory  study can, in fact, reflect overdependence on existing knowledge. However, a review of existing literature can show gaps or systematic bias in existing knowledge, thus provide the rationale for launching a grounded theory study.

May, K.A. (1986). "Writing and evaluating the grounded theory research report". In: Chenitz, W.C. & Swanson, J.M. (eds.), From practice to grounded theory: Qualitative research in nursing, pp. 146-154. Menlo Park, CA: Addison-Wesley.