Exercise 7.1 The Acme Company produces Monster Spray, a pleasant fragrance parents can use to help relax children who are afraid of nighttime monsters. A group of parents who use the spray has been recruited to find out how effective the spray is in calming monster-anxious children at bedtime. Prior to spraying, the parent will ask the child to rate his or her anxiety on a 1 to 10 scale (1 = not afraid at all, 10 =

very afraid); the parent will ask the same anxiety scale question after spraying. The parent will record both the before and after (spraying)

numbers.

Data set: Ch 07 - Exercise 01A.sav Codebook Variable: ID Definition: Participant’s first name Type: Alphanumeric Variable: pretest