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validity (including hit rates, kappa coefficients, and chance expectancy rates)
between standard scoring and person matching was compared by gender based upon
ex post facto data collected on 5143 medical students who had taken a career
interest inventory and entered their medical residency. Hit rate accuracy for
person matching with females and males in this study was lower than standard
scoring. However, person matching demonstrated greater gender balancing in
first match hit rates. Additionally, person matching increased career interest
inventory validity over standard scoring as it has the greater ability to a)
differentiate between and b) assign to specific occupational groups for females
and males. Furthermore, person matching has the potential to offer female and
male test takers the ability to receive narrative career data, which could
improve the career decision making process over the scoring reports of career
interest inventories using standard scoring.
Wet soil microcosms were established to determine effects of organic matter and nitrate additions on microbial respiration and redox potentials. Organic matter (1%) and nitrate (100 ppm and 200 ppm) treatments were applied in factorial combination. Soil pH, redox potential, and CO2 emissions were measured. Data were analyzed by ANOVA for repeated measures and separately by sampling day. Addition of organic matter significantly (P < 0.05) and consistently increased CO2 emissions and decreased redox potentials. On Day 42 nitrate significantly (P < 0.05) increased redox values. This study indicates a tendency for organic matter to decrease soil redox potential both in absolute terms and relative to the suboxic-anoxic boundary. Our findings portend that additions of organic matter may quickly and markedly decrease soil redox potentials and increase CO2 emissions in wetlands, whereas additions of nitrate may have complex and sporadic effects on redox potentials.