Judy Myers Suchey's research while affiliated with California State University, Fullerton and other places

Publications (13)

Article
A sample of 1284 well-documented pubic bones was studied for sex determination methods. This sample included many adolescents and could be used to expand Phenice's 1969 study, which was largely based on mature adults. In the present study, focus was placed on the ventral arc which, when used alone, provided 96% accuracy in sex determination. This p...
Article
After reviewing various systems of age determination based on analysis of the pubic bone, the discussion concentrates on the collection and preparation of an extensive autopsy sample (n=1225) of pubic bones from modern individuals with legal documentation of age at death (death and/or birth certificates). TheSuchey-Brooks method derived from this s...
Article
The radiocarbon (14C) method is a well-known isotopic dating technique by which age can be assigned to organic materials, including human bone. Natural and anthropogenic anomalies in 14C activity in the biosphere over the last few centuries, including the presence of artificial or 'bomb' 14C after 1950, can be used as an isotopic tracer to assign h...
Article
A well-documented multiracial sample of 704 male pubic bones allows for rigorous testing for racial differences in pubic symphyseal metamorphosis. The relationship between estimated age (using a modified Todd six-stage system) and age is examined as a function of race (White, Black, Mexican). One set of analyses incorporates linear regression model...
Article
A large sample (n = 370) of Central California prehistoric skeletal remains was analyzed for sexual dimorphism of long bones using nine femoral and nine humeral dimensions. Sex of all individuals was assessed using traits of the os pubis. Discriminant analysis was done separately for the robust Early Horizon sample and the Middle/Late Horizon sampl...
Article
An extensive (n = 739) sample of well-documented male pubic bones was examined for age-related features. Using the traditional aging methods, Todd's system was found to over-age and both the Todd and the McKern-Stewart systems did not account for age variability seen in advanced pubic bone patterns. Based on a 5-year interobserver error study, cert...
Article
Epiphyseal union of the anterior iliac crest and the medial clavicle is examined in 605 males and 254 females in a sample of modern Americans aged 11-40 years. The sample includes American whites, American blacks, Latin-Americans, and Orientals. This is the first skeletal investigation using a large sample of individuals of known age since the McKe...
Article
Pubic bones from 486 modern American females between the ages of 13 and 99 were studied in an attempt to explore the relationship between the degree of dorsal pitting and the following variables: (1) number of full term pregnancies, (2) inteval since last pregnancy, (3) age of decedent.A statistical association was found between the number of full...
Article
The Gilbert-McKern method for aging the female Os pubis has attained popularity following Gilbert's ('73) demonstration that the McKern-Stewart male standards are not directly applicable to females. In order to assess the reliability of the method, forensic anthropologists were asked to age a set of 11 pubes of known age. There was a great deal of...
Article
At present there is no standardized method to derive frequencies from bilateral non-metric traits. In this paper the commonly used methods are evaluated in light of statistical considerations and degree of sample preservation. In particular, we explore the question of dependence between sides for the bilateral traits. Several workers have tested fo...
Article
In recent years osteologists have frequently used non-metric (dichotomous) cranial data to measure biological distance between skeletal samples of Homo sapiens. Applying methods used earlier by biologists, these workers begin by attempting to stabilize the variance of the measures used by transforming the observed trait frequencies using some type...

Citations

... The MMD has been used effectively in multiple biodistance studies. It handles missing data and small sample sizes well when the Freeman and Tukey angular transformation is incorporated (Freeman and Tukey 1950;Sjøvold 1973;Green and Suchey 1976;Sjøvold 1977). Significant differences are assessed by comparing the MMD distance with its standard deviation (Sx). ...
... Numerous studies have researched this paleobiological parameter, in particular with regard to the pubic symphysis [7][8][9][10], the metamorphosis of the auricular surface [11][12][13][14], the medial clavicular epiphysis [15][16][17], and the degeneration of the sternal end of the ribs [18][19][20][21][22]. ...
... Various schemes have been proposed for the recording of these morphological changes and their association with biological age (e.g. Gilbert and McKern, 1973;Todd, 1920Todd, , 1921, with the most commonly used method being the Suchey-Brooks one (Brooks and Suchey, 1990). ...
... Numerous studies have researched this paleobiological parameter, in particular with regard to the pubic symphysis [7][8][9][10], the metamorphosis of the auricular surface [11][12][13][14], the medial clavicular epiphysis [15][16][17], and the degeneration of the sternal end of the ribs [18][19][20][21][22]. ...
... Note that the ratio 0.71 is expected if the same number of other individuals are used. The improvement is larger for traits with higher inter-side correlations of liability *: P < 0.05, **: P < 0.01, ***: P < 0.001 (= 1 -λ), unlike the estimation by Green et al. (1979) obtained by assuming that sides are mutually correlated separate traits. Thus, the existence of inter-side correlation does not justify avoiding the use of the SCF and the use of both sides. ...
... By using multiple regression in a well-documented sample, we found only dorsal pubic pitting significantly associated with the number of live births, whereas for all other features, the association with birth was weak and nonsignificant. This is in line with the results presented in previous studies (Snodgrass & Galloway, 2003;Suchey et al., 1979), although no prediction model for parity was presented in these studies. The expression of the preauricular sulcus and the extended pubic tubercle clearly increased with age, independent of the number of births. ...
... age and stature). Sex was accurately estimated to be 98% (48/49) of the time, which was higher than those observed in statistical validation studies of sex estimation methods that range between 78 and 95% [28,[50][51][52]. When compared to other casework accuracy rates, the results of this study were slightly higher than the 94.7% accuracy rate observed by Thomas et al. [13] and slightly lower than the 100% accuracy rate reported by Parsons [12] in the USA. ...
... En individuos adultos, la relación entre la edad cronológica (y) y el indicador de la edad (x) suele ser expresada como la ecuación de una recta. Sin embargo, es conocido que muchos de estos indicadores aumentan en su valor con la edad, pero no de manera lineal (Cappella et al., 2017;Katz y Suchey, 1989;Prince y Konigsberg, 2008). Esto ocasionaría un ajuste diferencial de los datos a la línea de regresión, provocando en última instancia una menor precisión del método (Nawrocki, 2010). ...
... Methods include examination of the external physical appearance; histopathological surveys [6][7][8]; reaction with a mineral acid, reaction with benzidine, nitrogen loss [9]; molecular biology [10][11][12][13][14][15]; metabolomics [16]; high performance liquid chromatography-tandem mass spectrometry [17]; UV-Vis spectroscopic methods [18][19][20][21][22]; radioisotope measurements [23][24][25][26]; luminol chemiluminescent reaction [24,[27][28][29][30][31]; X-ray diffraction [32][33][34]; spectroscopic technology [21,[34][35][36][37][38][39][40][41][42][43][44][45][46][47]; postmortem computed tomography (CT) [48], micro-CT [2,34]; visible and thermal 3D imaging [49]; and entomological methods (succession model, carrion insect development) [50]. No matter what technique is used, decomposition of tissue with time makes estimating PMI difficult [51]. ...
... Whenever possible, morphometric variables with a discriminating function have been used for the cranium and pelvis [27][28][29] . Furthermore, an evaluation related to the development of the linea aspera of the femur and a multivariate analysis of metric characters relevant to some skeletal areas such as the humerus, the femur and the tibia were carried out [30][31][32][33] . For the biological diagnosis of the age at death, the percentage of migration of the cancellous bone in the proximal epiphysis of the humerus and femur was evaluated 34 in association with the alterations of the pubic symphysis 35 . ...