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Dr. Roper and Dr. Hart used the Social Skills rating scale to rate 10 children’s aggression in Headstart Class #1 in December. Cohen’s kappa was calculated for the observations and was .90. Based on this information, we can say that

The best measure of central tendency to use when the data includes extreme scores (outliers) is the mean.

Dr. I. Que is studying the influence of developmentally appropriate practices on children’s cognitive development. He goes to the preschool classroom every day and makes field notes on what is going on and talks to the children and teachers about how they like developmentally appropriate activities.

Correlational research is useful because it shows how changes in one variable cause changes in another variable.

This measurement is

Which of the following statements is NOT true about the OSPF DR/BDR election process?  

A level of significance of .05 means there is a 5% chance of the finding being due to random chance.

You read in a journal article that in a study boys were significantly stronger than girls (t= 6.2; p

In qualitative research if you are able to generate a theory from your data, then you have used theoretical sampling.

Dr. Hawkins examined class absenteeism and score on the Research Methods final. He found that students who missed class fewer times scored higher on the final exam. The independent variable was class absenteeism.