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Unformatted text preview: Flouride to Water Supply: Independent variable. Number of cavities: Dependent variable. HOV Lanes will reduce the amount of commuting time Pre-test and a Post-test=together these make a longitudinal study Control Group stays constant throughout the longitudinal study Trolley Study: VMT. Vehicle Miles Travelled. Brown and Werner: One group pretest and posttest No control group...
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This note was uploaded on 04/18/2011 for the course PLAN 305 taught by Professor Mcdonald,n during the Spring '08 term at UVA.
- Spring '08