WGU C224 - STUDY GUIDE Latest 2022 Graded A

Characteristics of Quantitative Research numerical data (quantity); hypothesis & research procedure are stated BEFORE data collection; large sample size; rely on statistical procedure; low interaction with subjects; rely on controlling, measuring, and generalizing; objective by nature Quantitative Methods/Designs survey research; correlational research; causal comparative; experimental; single subject experimental Sampling techniques for quantitative research simple random; stratified; cluster; systematic; Simple random (quant) selection using table of random numbers Stratified (quant) selection based on dividing up into subgroups which have roughly equal representation Cluster (quant) intact groups are selected as by classroom, efficient but less representative Systematic (quant) take a population and select every Kth invidual i.e. sample population = 100 and you select every 5th person on list. Qualitative Research *emphasis on words and feelings; *research problems/methods evolve as understanding of topic increases; *smaller sample sizes; *relies on categorizing & organizing data into themes or patterns to describe & synthesize the data; *high level interaction with subjects; *many possible contexts & meanings for different people; *subjective by nature Qualitative Research Methods observation/field notes; interviews: face-to-face, phone, focus group; questionnaires; archival documents; journals; audio/video