Qualitative Research - an approach for exploring and understanding the meaning individuals or groups ascribe to a social or human problem. Most common designs: Narrative, Ethnography, Case studies, Grounded theory, Phenomenological. Quantitative Research - an approach for testing objective theories by examining the relationship among variables. Most common Designs: Correlational, Descriptive, Experimental, Descriptive Correlational. Mixed Approach - inquiry involving collecting both quantitative and qualitative data, and integrating the two forms of data. Types Of Mixed Approach: Convergent Parallel, Explanatory Sequential, Exploratory Sequential