omar has developed an intervention to improve the relationship between parents and their preschool-aged children. to evaluate the effectiveness of his intervention, omar video-records parents interacting with their children and has two research assistants score the level of warmth in each interaction. omar then compares the two sets of scores to examine – reliability. he finds a high positive correlation of – between the two raters’ scores. if the observers were rating a categorical variable, omar could have also looked at the – statistic.

Marcus wants to overcome his internalized racism. which action will him do so?

Which common characteristic of renaissance buildings does this image show

Dr. redbull conducts a study to determine whether her new energy drink children perform better on spelling tests. she randomly assigns children to one of two groups: group 1 receives her energy drink and group 2 receives water. she then gives both groups a spelling test and compares the results. which of the following is true about this study? a. group 1 is the dependent variable and group 2 is the independent variable. b. this is a correlational study. c. group 2 is the experimental group. d. the independent variable is the type of drink the children receive.