*113'. A classic study by Bandura, Blanchard, and Ritter (1969) compared ways to treat phobias. Participants with an intense fear of snakes received one of four treatments. Some worked with a model who handled a 4foot king snake and encouraged others to imitate her. Others watched a lm of adults and children who enjoyed progressively closer contact with a king snake. A third group received desensitization therapy, and a fourth group served as a control, receiving no treatment. The numbers of snakeapproach responses after treatment are listed in the table. Name the independent variable and its levels. Name the dependent variable. Compute SSW, 55m, and 55m. Model Film Desensitization Control 29 22 21 13 27 18 1 7 12 27 17 1 5 9 21 15 14 6