Orme Geoffrey J, Kehoe E James
Australian Army, PO Box 223, Concord West, Sydney, NSW 2138, Australia.
Australian Army and the University of New South Wales, Sydney, NSW 2052, Australia.
Mil Med. 2018 May 1;183(5-6):e147-e152. doi: 10.1093/milmed/usx098.
Although men and women recruits to the Australian Army have trained in mixed-gender platoons since 1995, restrictions on women joining the combat arms were only removed in 2016. As part of a longitudinal study starting with recruit training, this article examined recruit records collected before 2016 with the aims of delineating (1) the relative performance of women versus men in mixed-gender platoons and (2) the relative performance of men in mixed-gender platoons versus all-male platoons.
De-identified instructor ratings for 630 females and 4,505 males who completed training between 2011 and 2015 were obtained. Recruits were distributed across 128 platoons (averaging 41.6 members, SD = 8.3) of which 75% contained females, in proportions from 5% to 45%. These analyses were conducted under defense ethics approval DPR-LREP 069-15.
Factor analyses revealed that instructor ratings generally loaded onto a single factor, accounting 77.2% of the variance. Consequently, a composite recruit performance score (range 1-5) was computed for 16 of 19 competencies. Analyses of the scores revealed that the distributions of the scores for females and males overlapped considerably. Observed effects were negligible to small in size. The distributions were all centered between 3.0 and 3.5. In mixed-gender platoons, 51% of the females and 52% of the males fell in this band, and 44% of recruits in all-male platoons had scores in this band. The lower three bands (1.0-3.0) contained a slightly greater proportion of females (18%) than males in either mixed-gender platoons (12%) or all-male platoons (12%). Conversely, the upper three bands (3.5-5.0) contained a slightly smaller percentage of females (31%) than males in either mixed-gender platoons (36%) or all-male platoons (44%). Although scores for females were reliably lower than those of males in mixed-gender platoons, χ2 (4) = 16.01, p < 0.01, the effect size (V = 0.07) did not reach the criterion for even a small effect (0.10). For male recruits, those in mixed-gender platoons had scores that were reliably lower than in all-male platoons, χ2 (4) = 48.38, p < 0.001; its effect size (V = 0.11) just exceeded the criterion for a small effect (0.10). Further analyses revealed that male scores had a near-zero correlation (r = -0.033) with the proportion of females in platoons (0-45%).
This large-scale secondary analysis of instructor ratings of female and male recruits provides a platform for monitoring the integration of women into the combat arms. The analyses revealed nearly complete overlap in the performance of female versus male recruits. The detected gender-related differences were negligible to small in size. These small differences must be viewed with considerable caution. They may be artifacts of rater bias or other uncontrolled features of the rating system, which was designed for reporting individual recruit performance rather than aggregate analyses. Even with these limitations, this baseline snapshot of recruit performance suggests that, at recruit training, women and men are already working well together, which bodes well for their subsequent integration into the combat arms.
自1995年以来,澳大利亚陆军的男女新兵就在混合性别排中接受训练,但直到2016年才取消女性加入战斗部队的限制。作为一项从新兵训练开始的纵向研究的一部分,本文研究了2016年之前收集的新兵记录,目的是描绘(1)在混合性别排中女性与男性的相对表现,以及(2)在混合性别排中男性与全男性排中男性的相对表现。
获取了2011年至2015年间完成训练的630名女性和4505名男性的匿名教官评分。新兵分布在128个排中(平均每个排41.6人,标准差=8.3),其中75%的排有女性,女性比例从5%到45%不等。这些分析是在国防伦理批准DPR-LREP 069-15下进行的。
因子分析表明,教官评分通常加载到一个单一因子上,解释了77.2%的方差。因此,对19项能力中的16项计算了综合新兵表现得分(范围为1-5)。对得分的分析表明,女性和男性得分的分布有相当大的重叠。观察到的效应大小可忽略不计至较小。所有分布都集中在3.0至3.5之间。在混合性别排中,51%的女性和52%的男性得分在这个区间,在全男性排中44%的新兵得分在这个区间。在混合性别排(12%)或全男性排(12%)中,较低的三个区间(1.0-3.0)中女性(18%)的比例略高于男性。相反,在混合性别排(36%)或全男性排(44%)中,较高的三个区间(3.5-5.0)中女性(31%)的比例略低于男性。尽管在混合性别排中女性得分确实低于男性,χ2(4)=16.01,p<0.01,但效应大小(V=0.07)甚至未达到小效应的标准(0.10)。对于男性新兵,在混合性别排中的得分确实低于在全男性排中的得分,χ2(4)=48.38,p<0.001;其效应大小(V=0.11)刚刚超过小效应的标准(0.10)。进一步分析表明,男性得分与排中女性比例(0-45%)的相关性接近零(r=-0.033)。
这项对男女新兵教官评分的大规模二次分析为监测女性融入战斗部队提供了一个平台。分析表明,男女新兵的表现几乎完全重叠。检测到的与性别相关的差异可忽略不计至较小。必须非常谨慎地看待这些小差异。它们可能是评分者偏差或评分系统其他未控制特征的人为产物,该评分系统是为报告单个新兵的表现而设计的,而非汇总分析。即使有这些局限性,新兵表现的这个基线快照表明,在新兵训练中,男女已经能够很好地合作,这对他们随后融入战斗部队是个好兆头。