If you analyzed the difference scores then whichever group had a larger mean had the greatest decrease in anxiety since you hve subtracted posttest from pretest.
Paul R. Swank, Ph.D. Professor, Developmental Pediatrics Medical School UT Health Science Center at Houston -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joanna Sent: Wednesday, May 05, 2004 11:46 PM To: [EMAIL PROTECTED] Subject: [edstat] Please help! SPSS version 11. Hi everyone, i was wondering if there is anyone out there who can help me. I have a pretty simple task, but i am new to spss and i need help and quickly. I have three groups of participants each group went through a different type of therapy for anxiety. The groups have unequal numbers (12, 14, and 10). Phobioa scores were taken before and after treatment. I am using a general linear model procedure to test the change in the scores, equal variences are assumed and the assumption of normality was met. I found that there is a significant difference between two of the groups (EMDR and SD) using a post hoc test (bonferroni), however i need to know which group is the best at reducing anxiety? how do i do this? if you know, can you tell me exactly how to do it on spss version 11?? please help ASAP!!! i will include my data incase it helps. Participant, Gender, Age, Therapy technique, Score before therapy, Score after therapy, change in score. 1.00 male 22.00 EMDR 29.00 25.00 4.00 2.00 female 26.00 EMDR 36.00 26.00 10.00 3.00 female 25.00 EMDR 35.00 28.00 7.00 4.00 female 29.00 EMDR 30.00 29.00 1.00 5.00 female 34.00 EMDR 35.00 28.00 7.00 6.00 female 30.00 EMDR 29.00 26.00 3.00 7.00 male 21.00 EMDR 36.00 31.00 5.00 8.00 female 26.00 EMDR 38.00 30.00 8.00 9.00 female 30.00 EMDR 25.00 27.00 -2.00 10.00 female 29.00 EMDR 31.00 25.00 6.00 11.00 female 29.00 EMDR 32.00 25.00 7.00 12.00 male 22.00 EMDR 34.00 26.00 8.00 13.00 female 25.00 Flooding 25.00 24.00 1.00 14.00 male 35.00 Flooding 26.00 22.00 4.00 15.00 male 29.00 Flooding 28.00 27.00 1.00 16.00 male 31.00 Flooding 29.00 20.00 7.00 17.00 male 29.00 Flooding 18.00 18.00 .00 18.00 female 38.00 Flooding 26.00 24.00 2.00 19.00 male 42.00 Flooding 31.00 29.00 2.00 20.00 male 46.00 Flooding 36.00 35.00 1.00 21.00 female 58.00 Flooding 29.00 25.00 4.00 22.00 female 59.00 Flooding 25.00 23.00 2.00 23.00 male 31.00 Flooding 25.00 22.00 3.00 24.00 male 40.00 Flooding 26.00 20.00 6.00 25.00 male 40.00 Flooding 24.00 20.00 4.00 26.00 male 44.00 Flooding 28.00 24.00 4.00 27.00 male 18.00 SD 10.00 8.00 2.00 28.00 female 19.00 SD 4.00 4.00 .00 29.00 female 34.00 SD 5.00 4.00 1.00 30.00 male 35.00 SD 6.00 5.00 1.00 31.00 male 33.00 SD 7.00 7.00 .00 32.00 female 59.00 SD 5.00 4.00 1.00 33.00 female 57.00 SD 4.00 4.00 .00 34.00 female 64.00 SD 8.00 5.00 3.00 35.00 male 65.00 SD 12.00 8.00 4.00 36.00 male 24.00 SD 6.00 4.00 2.00 . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . ================================================================= . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
