Dr. Smith is examining the development of moral reasoning in children.  Seven children (11-years old) are assessed three times over the year.  The children are given moral reasoning scenarios.  Higher scores indicate higher levels of moral reasoning.   Time 1 Time 2 Time 3 5 6 10 4 7 9 8 8 9 7 9 7 6 5 10 3 5 7 2 2 4   Identify and calculate the appropriate test statistic.Make sure to report the degrees of freedom for the statistical test (if appropriate).   State your conclusions (use a two-tailed test with a = .05 for all tests). Compute an effect size.

Bullying,” according to noted expert Dan Olweus, “poisons the educational environment and affects the learning of every child.” Bullying and victimization are evident as early as preschool, with the problem peaking in middle school. Suppose you are interested in the emotional well-being of not only the victims but also bystanders, bullies, and those who bully but who are also victims (bully-victims). You decide to measure anxiety in a group of bullies and a group of victims using an 18-item, 5-point anxiety scale. Assume scores on the anxiety scale are normally distributed and that the variances of the anxiety scores are the same among bullies and victims. The group of 23 bullies scored an average of 40.1 with a sample standard deviation of 10 on the anxiety scale. The group of 28 victims scored an average of 46.8 with a sample standard deviation of 11 on the same scale. You do not have any presupposed assumptions about whether bullies or victims will be more anxious, so you formulate…

The table to the right contains observed values and expected values in parentheses for two categorical variables, X and Y, where variable X has three categories and variable Y has two categories. Use the table to complete parts (a) and (b) below. EQuestion Help X, X2 32 44 51 (35.39)(44.42)(47.19 19 20 17 (15.61)(19.58)(20.81) O B. H,: The Y category and X category have equal proportions. H,: The proportions are not equal. OC. Hn: The Y category andX category are dependent. H,: The Y category and X category are independent. OD. Ho: H -E, and Hy =E, H: H #E, or H, 7E, What is the P-value? P-value = (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer. port

We predict that children exhibit more aggressive act after watching a violent television show. The scores for ten children were recorded before they watched a violent show and then after they watched a violent show. Aggression was measured in terms of number of aggressive acts (e.g. hitting, yelling, kicking etc).   Sample 1 (after TV show): 5,6,4,4,7,3,2,1,4,1 Sample 2 (before TV show): 4,6,3,2,4,1,0,0,5,2   What is the critical value?