WGU C207 Modules 1 – 6 Exam Prep Questions And Answers (Answered)

WGU C207 Modules 1 – 6 Exam Prep Questions And Answers (Answered) Frame the Problem, Solving the Problem and Communicating Results are part of which decision making model? Davenport-Kim three-stage model In which stage of the Davenport-Kim model is problem recognition? Framing the problem In which stage of the Davenport-Kim model is data collection? Solving the problem What is a key reason we study statistics? To make informed decisions Visually presenting the data assists in which stage of the Davenport-Kim model? Communicating the results When does research fail to produce reliable results? Poor research validity What are the two major issues surrounding research standards? Best practices and ethics In order to be a statistically valid sample, the sample must be: The appropriate size and random Not selecting a random sample is what type of bias? Measurement Not selecting a right sized sample is what type of bias? Measurement Research best practices eliminate... Bias Outliers create this type of error Out-of Range Unpredictable error Random Error - No correlation Error may occur from missing data. (Example: Space not filled in) Omission Error - Distorted results This error repeats itself Systematic Error - Skewed results Observation points that are distant from other observations. Outliers Note: Can be included or excluded in analysis (causes skewness) Types of Bias: Bias that occurs fro