A Comparison of Histomorphometric Data Collection Methods*

Abstract: Although many variables that skeletal biologists examine have been standardized, the actual techniques used to collect these data from bone thin sections vary. This project compares different methods of obtaining data (relative cortical area values) for histomorphometric research. One visual and three digital methods of histomorphometric data collection are compared: (i) Merz microscopic eyepiece counting reticule, (ii) flatbed scanner, (iii) overlaying multiple images of a thin section, and (iv) digital SLR camera with macro settings. The discussion includes a comparison of usability factors such as cost, time, user‐experience, and ease‐of‐use, which vary for each method. Values from the different methods are compared using ANOVA tests to evaluate inter‐method, inter‐observer, and intra‐observer variability. Intra‐observer error was greater for the microscopic method, although the error values are concomitant with experience. We found no statistically significant differences between the four methods examined, but certain caveats must be addressed when these methods are used.     

An Overview of the Courts Catalyzing Change Preliminary Protective Hearing Benchcard Study

This paper presents an overview of the Courts Catalyzing Change: Achieving Equity and Fairness in Foster Care Preliminary Protective Hearing Benchcard Study. In the fall of 2009, the National Council of Juvenile and Family Court Judges (NCJFCJ) began a study to examine the effects associated with judges' use of the Preliminary Protective Hearing Benchcard. For this study, data were gathered from case file information (both court and agency files) and from courtroom observations of more than 500 children in Los Angeles, California; Omaha, Nebraska; and Portland, Oregon. Data from a baseline sample were collected at each of the three sites, and judicial officers at each site were randomly assigned to either a Benchcard group or a control group. Benchcard implementation appears to be associated with more discussion and higher quality discussion of key dependency topics during preliminary protective hearings. Benchcard implementation also corresponds to increased judicial inquiry and parental engagement. Benchcard use also was associated with more family placements—placement with a charged parent, a non‐charged parent, or a relative—at the initial hearing and even more family placement at adjudication when comparing the same judges before and after Benchcard implementation. Similarly, the percentage of children who were reunified with the charged parent at the initial hearing and the adjudication hearing increased after Benchcard implementation.