Mishel M H
Nurs Res. 1981 Sep-Oct;30(5):258-63.
The purpose of this investigation was to explore the role of uncertainty as a significant variable influencing patients' experiences in illness, treatment, and hospitalization. A theory was proposed on uncertainty in illness. Based upon this conceptualization, a 30-item scale tapping the uncertainty in symptomatology, diagnosis, treatment, relationship with care-givers, and planning for the future was developed. The Mishel Uncertainty in Illness Scale (MUIS) was factor analyzed and two factors were extracted from the data. Replication of the factor analysis provided support for the robustness of each factor. The reliability coefficient for each factor of the MUIS was highly adequate for both the initial and replication analyses. Three validation studies were conducted. Initial support for construct validity of the scale was demonstrated by the finding that the MUIS discriminates between treatment groups according to expected differences. Support for theoretical predictions was evidenced by the significant correlation between the MUIS and stress as measured by the Hospital Stress Events Scale. Convergent validity was supported by the finding that the MUIS correlates significantly with lack of comprehension.
本研究的目的是探讨不确定性作为一个重要变量在影响患者疾病、治疗及住院体验方面所起的作用。提出了一种关于疾病不确定性的理论。基于这一概念化，编制了一个30项量表，用于测量症状、诊断、治疗、与护理人员关系及未来规划等方面的不确定性。对米舍尔疾病不确定性量表（MUIS）进行了因子分析，并从数据中提取出两个因子。因子分析的重复验证为每个因子的稳健性提供了支持。MUIS各因子的信度系数在初始分析和重复分析中均非常充足。进行了三项效度研究。该量表结构效度的初步支持证据是，MUIS能根据预期差异区分治疗组。MUIS与医院应激事件量表所测应激之间的显著相关性证明了对理论预测的支持。MUIS与理解不足之间的显著相关性支持了收敛效度。
