Assignment 2 Example | Topics and Well Written Essays - 1500 words - 1

2 - Assignment Example 7. The researchers excluded persons from the study who had a history of psychiatric illness. Provide a rationale for excluding these persons. Basically, the experiment was aimed at finding the best treatment for depression. Therefore, having an earlier treatment for psychiatry may affect the results of the experiment. 2. What statistics were used to describe the demographic variable Estimated Yearly Family Income in this study? Were these appropriate? Employment and the socioeconomic status were used for measuring the yearly family income in this study. However, these were not the appropriate measures. Non parametric statistical analysis techniques are the best fit for education. Parametric tests are done for data whose variances are homogeneous. However, this is not the case for education and therefore, non-parametric tests are best for education. 9. Are there significant differences between the intervention and the control groups for any of the variables in Table I? Provide a rationale for your answer. From the table, there are no significant differences between the intervention and the control groups. This is because there are no significant differences in the percentages of the control groups and the intervention group. 6. Explain why the number of total subjects’ data in Table 2 is for 859 subjects when the total sample for the study was 869 subjects. The people who had a history of cardiac attacks earlier were excluded from the experiment. This study and its results cannot be generalized for the United States. This is because the sample was not representative. The sample was only selected in the rural areas and the sample size was not sufficient, therefore does not reflect the condition in the United States. 1. The following list represents the number of nursing students enrolled in a particular nursing program between the years of 2001 and 2007, respectively: 563, 593, 606, 520, 563, 610, and 577. Determine the mean,