Martin,
I assume the DV is at the person level, the fire-person, rather than the station house. True? Suppose so, the persons are nested with in firehouses within battalions. Was the intervention at the person or station-house level? Does battalions matter? How many battalions were there? 1, 5, 20?
Gene Maguin
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Martin Sherman
Sent: Monday, April 16, 2012 9:24 PM
To: [hidden email]
Subject: Nested design help
Dear list: I have a student conducting a study for a thesis where he is looking at firemen/women’s’ intentions to use safety devices. He has a pre measure and a post measure (intervention between pre and post)-a repeated measure (within group design). However, the firemen/women are nested within battalions. Each battalion is made up of 4-6 station houses. The firemen/women work out of station houses- so it seems that should be the level of analysis. I haven’t used a nested design in many years and would appreciate any direction in regard to texts or articles that would help me figure out the design so that we can then analyze the data within spss. Advice appreciated. mfs
Martin F. Sherman, Ph.D.
Professor of Psychology
Director of Masters Education in Psychology: Thesis Track
Loyola University Maryland
Department of Psychology
222 B Beatty Hall
4501 North Charles Street
Baltimore, MD 21210
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