2-Factor ANOVA Impact on Lacrosse Helmets

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2-Factor ANOVAImpact on Lacrosse Helmets

• S.V. Caswell, R.G. Deivert (2002). Lacrosse
  Helmet Designs and the Effects of Impact Forces,
  Journal of Athletic Training, 37(2)164-171.

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Data Description

• Response Gadd Severity Index (Higher scores
  more severe)
• Factor A Model (a4 Levels)
• Sports Helmets Cascade (i1)
• Sports Helmets Cascade Air Fit (i2)
• Sports Helmets Ultralte (i3)
• Bacharach Ultralte (i4)
• Factor B Side (b2 Levels)
• Front (j1)
• Back (j2)
• Replicates n10 per Treatment
• Model

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Data - Mean (SD)
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Data - Factor Level (Interaction) Plot
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ANOVA
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Post Hoc Comparisons (Model w/in Side)

• MSE25374, df72 n10, 4 Brands, 6 Pairs/Side

Front 3 2 1 4
Back 1 2 3 4