Briefly review the meaning of a correlation coefficient and describe how the correlation coefficient can be used as a descriptive statistic and how it can be used in inferential statistics

14.11 An educational research center of a state university has a contract to do a statewide ethnographic study of the nature of compensatory reading programs for first-graders deficient in reading performance. Basically, there are three different compensatory reading programs found throughout the 453 school districts of the state. The districts range in size from small rural districts to large city districts. The study has resources for including 50 sites for periodic observation, interviewing, and so on on a regular basis during one school year, describe how a purposeful sample of sites would be selected for this study. (150 words) After the study is under way, describe how intermittent sampling might be used 14.14 Use Research Navigator to locate a research study that uses purposeful sampling. Are there descriptions of the site selection (if applicable) and the unit selection? Are the descriptions for selection adequate? Is the sample size given? Does the author address generalizability or external validity and, if so, does the case seem adequate? (150 words) 15.6 Construct five items for a rating scale that might be used with high school teachers to measure faculty perceptions of the central administration of the school system (150 words) 6.X Findtwo correlational analysis research and summarize the results (minimum 300 words) 17.11 Briefly review the meaning of a correlation coefficient and describe how the correlation coefficient can be used as a descriptive statistic and how it can be used in inferential statistics. (150 words)

17.14 Locate a research report that includes inferential statistics for the analysis of the data. Identify the hypotheses tested and the statistical procedures for testing the hypotheses. Were those procedures appropriate? Were the conclusions from the statistical analyses appropriate? Is the author’s chain of reasoning in using inferential statistics apparent and correct? (150 words)