Question

"Dr. Wakefield is interested in the effect of watching cartoons on 5- and 6-year-olds' aggressive behavior. He recruits 50 children to participate in his study. When a child comes to his laboratory, he randomly assigns them to one of two groups. For one group, Dr. Wakefield plays a mildly violent clip of ""Tom and Jerry"", for another group, he plays or a non-violent clip ""Dora the Explorer"". Next, he brings every child, regardless of their group, them to a room with a punching (Bobo) doll. He leaves them alone for 5 minutes, watching them through a two-way mirror. He counts the number of aggressive acts (e.g., punching, kicking, etc) that they exhibit. He then compares the average number of aggressive acts between children in the ""Tom and Jerry"" and ""Dora the Explorer"" groups.

What type of study design did Dr. Wakefield utilize?"

A) Cross-sectional
B) Longitudinal
C) Experimental
D) Case study

Answer 1

Dr. Wakefield utilized an experimental study design to investigate the effect of watching cartoons on 5- and 6-year-olds' aggressive behavior. By randomly assigning children to different groups and comparing their aggressive acts, he can establish a cause-and-effect relationship.

Step-by-step explanation:

Dr. Wakefield utilized an experimental study design. In this study design, he randomly assigned the children to either the group watching the mildly violent cartoon, 'Tom and Jerry', or the group watching the non-violent cartoon, 'Dora the Explorer'. He then compared the average number of aggressive acts exhibited by the children in each group. By randomly assigning the children to different groups, Dr. Wakefield can establish a cause-and-effect relationship between watching violent cartoons and aggressive behavior.