OBJECTIVE In 2007, Congress changed the military's sexual assault laws as part of an effort to improve sexual assault case processing. This study looked at the U.S. Army law enforcement investigative finding for every sexual assault reported to the Army from 2004 through June 2012, along with every nonsexual assault. Our objective was to measure whether the legal intervention affected the investigative findings made by Army law enforcement officers in sexual assault cases (penetrative, nonpenetrative, and combined) as compared to assault cases (aggravated, simple, and combined). HYPOTHESES We hypothesized that we would not find evidence that the legal intervention affected the rate of sexual assault cases labeled as "founded" by Army law enforcement, such that for the best-fitting time-series models, any difference in the residuals of the means before and after the intervention would not be statistically significant. METHOD We received data from the U.S. Army on all sexual assaults and nonsexual assaults from 2004 through June 2012. The data comprised 47,058 observations. We used time-series analysis with autoregressive integrated moving average modeling. The variable tracked over time was the ratio of the proportion of founded sexual assault cases to the proportion of founded nonsexual assault cases. We then conducted t tests of the means of the residuals before and after the legal intervention. RESULTS The difference in the means of the residuals before and after the intervention was not statistically significant for combined sexual assaults versus combined assaults, penetrative sexual assaults versus aggravated assaults, or nonpenetrative sexual assaults versus simple assaults. CONCLUSIONS This reform to sexual assault laws does not appear to have affected sexual assault case processing by U.S. Army law enforcement. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

中文翻译：

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改变军队性侵犯法对美国军队执法调查结果的影响。

目标 2007 年，作为改进性侵犯案件处理工作的一部分，国会修改了军队的性侵犯法律。这项研究着眼于美国陆军执法部门对从 2004 年到 2012 年 6 月向陆军报告的每起性侵犯以及每起非性侵犯的调查结果。我们的目标是衡量与攻击案件（加重、简单和综合）相比，法律干预是否影响陆军执法人员在性侵犯案件（穿透性、非穿透性和综合性）中的调查结果。假设我们假设我们不会找到证据表明法律干预会影响被陆军执法部门标记为“成立”的性侵犯案件的发生率，因此对于最合适的时间序列模型，干预前后均值残差的任何差异均无统计学意义。方法 我们从美国陆军收到了从 2004 年到 2012 年 6 月所有性侵犯和非性侵犯的数据。数据包含 47,058 次观察。我们使用时间序列分析和自回归集成移动平均模型。随着时间的推移跟踪的变量是已成立的性侵犯案件的比例与已成立的非性侵犯案件的比例的比率。然后，我们对法律干预前后的残差均值进行了 t 检验。结果 干预前后残差均值的差异对于联合性侵犯与联合侵犯、插入性侵犯与严重侵犯、或非侵入性性侵犯与简单攻击。结论 这项对性侵犯法律的改革似乎并未影响美国陆军执法部门对性侵犯案件的处理。（PsycInfo 数据库记录 (c) 2022 APA，保留所有权利）。