Greater Sciatic Notch Variation Lindsay Kiefer

1.Forensic Anthropological Theory The change of theory since the 1977. American Board of Forensic Anthropology Biological Profile Major theoretical shift Six key developments http://fac.utk.edu/images/FAC_logo.gif

2.Experimental Design and Methodology I. Primary Methodology Pelvic Cranial Morphological Scoring Femoral Sacral Skeletal Measurements 1-2: Female 3: Ambiguous 4-5: Male Sexing

I. Hypothesis #1 Methodology Each Innominate Greater Sciatic Notch Photos Analyzing Digital Images Software 1 cm2 Scale Area Calculation Statistical Package for the Social Sciences Data Documentation

I. Hypothesis #2 Methodology 1 3 3 Rays Angles 1, 2, and 3 Angle determination Standard protractor Data documentation Angle measurement 2

t-test for Equality of Means 3. Experimental Testing and Results I. Hypothesis #1 Sample Frequencies Sex N Area of left GSN cm2 Female Male 18 30 Area of right GSN cm2 Female 16 28 Total Right Left 48 44 Table 1  t-test for Equality of Means   Sig. (2-tailed) Area of left GSN cm2 E. V. Assumed .894 E. V. Not Assumed .890 Area of right GSN cm2 E. V. Assumed .423 .443 E.V. Not Assumed Table 2 Figure 1

t-test for Equality of Means 3. Experimental Testing and Results I. Hypothesis #2   Cases Included Excluded Total N Left Angle 1 * Sex 52 48 46 13 17 19 65 Left Angle 2 * Sex Left Angle 3 * Sex Right Angle 1 * Sex Right Angle 2 * Sex Right Angle 3 * Sex Table 1  t-test for Equality of Means  Sig. (2-tailed) Left Angle 1 .000 Left Angle 2 .852 Left Angle 3 Right Angle 1 Right Angle 2 .010 Right Angle 3 Table 3 Figure 1

3. Experimental Testing and Results I. Hypothesis #2 Angle Sex Estimation Males ≤40º Females ≥40º Kappa Statistic Angle Sex Determination & UW Database .697 Mean of Angle 1 Males 36º Females 55º Table 2 Table 1 Table 3

Experimental Methodology Conclusion Theory Experimental Methodology Testing Results