Deprivation and Aggression A social psychologist wants to know if perceived deprivation increases aggression. She first measures the number of aggressive acts committed by children who were playing with worn, broken toys. Next, these same children watched other children playing with new. shiny toys. Finally, the first group of children then resumed playing with their worn, broken toys and the researcher again measured aggressive acts. 1) Is this a one-tailed or two-tailed test? Why? 2) What are the null and alternative hypotheses? Ho: Ha: Perform a t-test on the following data to see if perceived deprivation does indeed increase aggression. Before After Deprivati Deprivation 16 18 10 17 10 14 3) What are the degrees of freedom? What is the critical value based on the type of test (1- or 2- tailed) for a - .05? Critical value - 4) Conduct at-test. What are the results? Is there a difference at a = .(S? 5) Calculate Cohen's d. What do the results suggest about the difference in aggression after perceived deprivation