Universidade do Estado do Rio Grande do Norte. Pau dos Ferros, Rio Grande do Norte, Brazil.
Universidade Federal do Ceará, Hospital Universitário Walter Cantídio. Fortaleza, Ceará, Brazil.
Rev Bras Enferm. 2024 Jul 29;77(3):e20230386. doi: 10.1590/0034-7167-2023-0386. eCollection 2024.
to analyze the validity evidence of the internal structure of the Risk Self-Medication Questionnaire Focused on Health Literacy.
a psychometric study with 499 adults. The internal structure was assessed with exploratory and confirmatory factor analysis to prove the adjustment. Internal consistency was measured by composite reliability and McDonald's omega coefficient (ω).
the parameters revealed a model of 35 items distributed across four factors, explaining 56% of the total variance, with factor loadings ranging from 0.31 to 0.85 and adequate communalities. Accuracy (0.79<ORION<0.98), representativeness (0.89<FDI<0.99), sensitivity (1.92<SR<7.07), factor hope (88.3%< EPTD<97.9%), replicability (0.82<H-Latent<H-observed<0.87) and reliability (ω=0.87) were adequate. The composite reliability ranged from 0.840 to 0.910. Furthermore, good model fit was achieved (TLI = 0.99; CFI = 0.99; GFI = 0.95; RMSEA = 0.02 and RMSR = 0.05).
an instrument was obtained with good evidence of structural validity for measuring self-medication.
分析健康素养为重点的自我药疗风险问卷的内部结构的效度证据。
对 499 名成年人进行了一项心理测量学研究。采用探索性和验证性因子分析来评估内部结构，以证明调整的合理性。内部一致性通过综合可靠性和麦克唐纳的 ω 系数（ω）来衡量。
参数显示了一个由 35 个项目组成的模型，分布在四个因素中，解释了总方差的 56%，因子负荷范围从 0.31 到 0.85，且具有足够的共同度。准确性（0.79<ORION<0.98）、代表性（0.89<FDI<0.99）、敏感性（1.92<SR<7.07）、希望因子（88.3%< EPTD<97.9%）、可重复性（0.82<H-Latent<H-observed<0.87）和可靠性（ω=0.87）均较为充分。综合可靠性范围为 0.840 至 0.910。此外，模型拟合度良好（TLI = 0.99；CFI = 0.99；GFI = 0.95；RMSEA = 0.02，RMSR = 0.05）。
该工具获得了良好的结构有效性证据，可用于测量自我药疗。
