C-207 Data Driven Decision Making 120 Correctly Answered Questions Latest Update

3 Steps of Davenport-Kim Three-Stage Model {Ans: 1. framing the problem 2. solving the problem 3. communicating results}parametric test* {Ans: A test that assumes there is a structure (maybe a normal distribution) to the population, often appearing when mean or standard deviation are important}Common Misuse of Statistics: Faulty Operationalization {Ans: Operationalization refers to the development of specific research procedures that allow for observation and measurement of abstract concepts. For example, if a researcher wants to study how new parents feel about their financial security, he can operationalize this objective by determining a testable hypothesis; developing a mechanism for collecting observations (for example, a survey); identifying a representative sample (200 randomly selected parents of newborns in suburban towns); asking relevant questions; and interpreting the data received. Each of these research decisions (hypothesis, method, sampling, questions, interpretation) is an example of operationalization. A key aspect of operationalization is defining variables and attributes that adequately represent the concept of the study. For example, to assess attitudes about financial security, researchers might ask respondents to characterize their feelings regarding their financial security as "anxious" "confident" and so forth. These responses can be coded as "1" "2" "3" etc., for analysis. Or