PDF(Pubmed)
Abstract：
OBJECTIVE: To develop and psychometrically test an instrument to assess nurses\' evidence-based knowledge and self-efficacy regarding insertion and management of venous access devices (short peripheral catheter (SPC), long peripheral catheter/midline (LPC) and PICC) and the management of totally implantable central venous catheter (Port) in adult patients.
METHODS: Multicenter cross-sectional observational study with questionnaire development and psychometric testing (validity and reliability).
METHODS: An evidence-based instrument was developed including a 34-item knowledge section and an 81-item self-efficacy section including four device-specific parts. Nineteen experts evaluated content validity. A pilot study was conducted with 86 nurses. Difficulty and discrimination indices were calculated for knowledge items. Confirmatory factor analyses tested the dimensionality of the self-efficacy section according to the development model. Construct validity was tested through known group validity. Reliability was evaluated through Cronbach\'s alpha coefficient for unidimensional scales and omega coefficients for multidimensional scales.
RESULTS: Content validity indices and results from the pilot study were excellent with all the item-content validity indices >0.78 and scale-content validity index ranging from 0.96 to 0.99. The survey was completed by 425 nurses. Difficulty and discrimination indices for knowledge items were acceptable with most items (58.8%) showing desirable difficulty and most items (58.8%) with excellent (35.3%) or good (23.5%) discrimination power, and appropriate to the content. The dimensionality of the model posited for self-efficacy was confirmed with adequate fit indices (e.g., comparative fit index range 0.984-0.996, root mean square error of approximation range 0.054-0.073). Construct validity was determined and reliability was excellent with alpha values ranging from 0.843 to 0.946 and omega coefficients ranging from 0.833 to 0.933. Therefore, a valid and reliable tool based on updated guidelines is made available to evaluate nurses\' competencies for venous access insertion and management.
METHODS: Multicenter cross-sectional observational study with questionnaire development and psychometric testing (validity and reliability).
METHODS: An evidence-based instrument was developed including a 34-item knowledge section and an 81-item self-efficacy section including four device-specific parts. Nineteen experts evaluated content validity. A pilot study was conducted with 86 nurses. Difficulty and discrimination indices were calculated for knowledge items. Confirmatory factor analyses tested the dimensionality of the self-efficacy section according to the development model. Construct validity was tested through known group validity. Reliability was evaluated through Cronbach\'s alpha coefficient for unidimensional scales and omega coefficients for multidimensional scales.
RESULTS: Content validity indices and results from the pilot study were excellent with all the item-content validity indices >0.78 and scale-content validity index ranging from 0.96 to 0.99. The survey was completed by 425 nurses. Difficulty and discrimination indices for knowledge items were acceptable with most items (58.8%) showing desirable difficulty and most items (58.8%) with excellent (35.3%) or good (23.5%) discrimination power, and appropriate to the content. The dimensionality of the model posited for self-efficacy was confirmed with adequate fit indices (e.g., comparative fit index range 0.984-0.996, root mean square error of approximation range 0.054-0.073). Construct validity was determined and reliability was excellent with alpha values ranging from 0.843 to 0.946 and omega coefficients ranging from 0.833 to 0.933. Therefore, a valid and reliable tool based on updated guidelines is made available to evaluate nurses\' competencies for venous access insertion and management.
摘要：
目的：开发并在心理上测试一种工具，以评估护士关于静脉接入装置（短外周导管（SPC），长外周导管/中线（LPC）和PICC）以及成人患者完全植入式中心静脉导管（Port）的管理。
方法：多中心横断面观察研究，包括问卷开发和心理测量测试（有效性和可靠性）。
方法：开发了一种基于证据的工具，其中包括34项知识部分和81项自我效能感部分，其中包括四个特定于设备的部分。19位专家评估了内容效度。对86名护士进行了一项试点研究。计算了知识项目的难度和歧视指数。验证性因素分析根据发展模型测试了自我效能感部分的维度。结构效度通过已知的群体效度进行检验。通过Cronbach的一维尺度的α系数和多维尺度的ω系数评估可靠性。
结果：内容效度指数和试点研究的结果非常出色，所有项目内容效度指数均>0.78，量表内容效度指数范围为0.96至0.99。调查由425名护士完成。知识项目的难度和歧视指数是可以接受的，大多数项目（58.8％）表现出理想的难度，大多数项目（58.8％）具有优秀（35.3％）或良好（23.5％）的歧视能力，并且适合于内容。通过适当的拟合指数证实了自我效能感模型的维数(例如，比较拟合指数范围为0.984-0.996，均方根误差的近似范围为0.054-0.073）。确定了结构效度，可靠性非常好，α值在0.843至0.946之间，ω系数在0.833至0.933之间。因此,基于最新指南的有效和可靠的工具可用于评估护士静脉通路插入和管理的能力.
方法：多中心横断面观察研究，包括问卷开发和心理测量测试（有效性和可靠性）。
方法：开发了一种基于证据的工具，其中包括34项知识部分和81项自我效能感部分，其中包括四个特定于设备的部分。19位专家评估了内容效度。对86名护士进行了一项试点研究。计算了知识项目的难度和歧视指数。验证性因素分析根据发展模型测试了自我效能感部分的维度。结构效度通过已知的群体效度进行检验。通过Cronbach的一维尺度的α系数和多维尺度的ω系数评估可靠性。
结果：内容效度指数和试点研究的结果非常出色，所有项目内容效度指数均>0.78，量表内容效度指数范围为0.96至0.99。调查由425名护士完成。知识项目的难度和歧视指数是可以接受的，大多数项目（58.8％）表现出理想的难度，大多数项目（58.8％）具有优秀（35.3％）或良好（23.5％）的歧视能力，并且适合于内容。通过适当的拟合指数证实了自我效能感模型的维数(例如，比较拟合指数范围为0.984-0.996，均方根误差的近似范围为0.054-0.073）。确定了结构效度，可靠性非常好，α值在0.843至0.946之间，ω系数在0.833至0.933之间。因此,基于最新指南的有效和可靠的工具可用于评估护士静脉通路插入和管理的能力.
