Sharon Seidman Ph D Review Exercises CAS 301 Developmental Inquiry and Methodology 1 Review Exercises Meir decided to do a study on gender differences in children s reaction to video games He included both boys and girls and was careful to make sure that he had the 2 girls and 2 boys from each year in elementary school He then created a lending library of video games He put each pair of children with the same gender and age into a hat and pulled out one name The person whose name was chosen was allowed to borrow 6 video games each week from the library and play them as often as they liked The person whose name was not chosen was only allowed to borrow library books but not video games At the end of a month Meir watched each child play a brand new gender neutral video game and coded their interest and engagement with the game on scale from 1 not at all engaged to 10 very engaged Conceptual Definition Operational Definition Independent Variable Is Variable Manipulated Within Subjects Repeated Measures Between Subjects Predictor Variable Is Variable Manipulated Within Subjects Repeated Measures Between Subjects Dependent Variable Describe a potential confound and its solution What kind of sampling did Meir use What kind of assignment did Meir use Sharon Seidman Ph D Review Exercises CAS 301 Developmental Inquiry and Methodology 2 Meir found the following results Video Game Experience Gender Lots Little Male 8 4 6 Female 5 1 3 6 5 2 5 Graph Meir s findings using a line graph Put the Independent Variable on the X axis and the Dependent Variable on the Y axis Draw one line representing the findings for each level of the predictor variable Based on this picture and table which findings would you expect to be significant Main effect for gender Main effect for video access Interaction effect Summarize Meir s findings Sharon Seidman Ph D Review Exercises CAS 301 Developmental Inquiry and Methodology 3 Meir s wife thinks that his study is artificial She goes around their neighborhood and asks each child to rate how much they use video games from 1 almost never to 10 all the time She also asks them to rate how much they are interested in video games from 1 not at all to 10 more than anything else She finds the following Interest 10 6 6 7 5 6 9 5 6 5 8 3 6 2 2 5 4 1 10 9 8 7 Interes Use 10 10 8 8 9 7 7 6 6 5 5 4 4 3 3 1 1 1 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10 Use What are the variables in this study Conceptual Definition Operational Definition Variable 1 Variable 2 Draw the line of best fit Based on this the correlation is most probably 35 68 35 68 Summarize her findings Based on these studies Meir and his wife conclude that using video games causes an increase in interest in video games The more kids use them the more they like them Is this conclusion supported by the research Why why not