Attitudes Toward Lesbians and Gay Men Scale: validation in Brazilian physicians

ABSTRACT Objective: To perform the cross-cultural adaptation of the original North American version of the Attitudes Toward Lesbians and Gay Men Scale (ATLG) for use in Brazil, and to evaluate the psychometric properties of the adapted instrument in a sample of Brazilian heterosexual physicians. Methods: Stages of cross-cultural adaptation were as follows: translation by two independent evaluators, translation synthesis, evaluation by the target population for semantic equivalence, pilot study with 42 physicians, and final instrument preparation involving 224 heterosexual physicians practicing medicine in the Federal District. Invitations containing a link to the study were sent to physicians via e-mail, social media and medical associations. Inclusion criteria were as follows: being a physician authorized to practice medicine in Brazil, practicing medicine in the Brazilian Federal District, and self-declared heterosexual, as stipulated in the original version of the ATLG scale. Exclusion criteria were not disclosed to potential participants to avoid inhibition and unwillingness to participate; respondents meeting exclusion criteria were removed from the sample during data analysis. Results: Exploratory and confirmatory factor analyses suggested a one-factor solution to be the most representative of the data, including all 20 items with high reliability (composite reliability coefficients =0.948). Conclusion: The ATLG scale is a suitable instrument to assess physicians’ attitudes toward homosexuals, with good validity and reliability evidence based on the sample studied.

摘要
研究目的：对原版北美版《对女同性恋与男同性恋态度量表（Attitudes Toward Lesbians and Gay Men Scale, ATLG）》开展跨文化调适以适配巴西使用场景，并在巴西异性恋医师样本中评估该调适后工具的心理测量学属性。
研究方法：本次跨文化调适流程如下：由两名独立评估者分别完成翻译、译稿整合、目标人群语义等效性评估、针对42名医师开展预试验，以及最终针对巴西联邦特区224名在职异性恋医师完成工具定稿。研究通过电子邮件、社交媒体及医学协会向医师发送含研究链接的招募邀请。纳入标准为：持有巴西合法行医资质、在巴西联邦特区执业，且自我声明为异性恋（符合ATLG原版量表的相关规定）。为避免潜在参与者产生拘束感或不愿参与，未向其披露排除标准；数据分析阶段将符合排除标准的受访者从样本中剔除。
研究结果：探索性因子分析与验证性因子分析结果显示，单因子模型最能契合本研究数据，包含全部20个条目且信度优异（组合信度系数=0.948）。
研究结论：ATLG量表可有效用于评估医师对同性恋群体的态度，基于本次研究样本，其具备良好的效度与信度证据。