目标导向行为模型在限制拉丁裔学龄前儿童看电视时间中的应用：有效性和可靠性。
Model of goal directed behavior for limiting Latino preschoolers' television viewing: validity and reliability.
机构信息
Department of Psychology, University of California, Los Angeles, 1285 Franz Hall, Box 951563, Los Angeles, CA, 90095-1563, USA.
USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, TX, USA.
出版信息
BMC Public Health. 2020 Feb 5;20(1):185. doi: 10.1186/s12889-020-8268-x.
BACKGROUND
Accurately measuring parents' attitudes and beliefs regarding limiting their children's TV viewing is important to inform the design and evaluation of effective interventions. This manuscript assesses the internal consistency reliability, test-retest reliability, convergent validity, and construct validity of the Model of Goal Directed Behavior (MGDB) scales among parents of Latino preschoolers to characterize Latino parents' attitudes and beliefs toward limiting their preschoolers' TV viewing.
METHOD
Participants included parents of Latino preschoolers in the United States, 3-5 years old (n = 186). Parents completed a socio-demographic survey and the 105-item MGDB questionnaire (Attitudes, Perceived Positive/Negative Behavioral Control, Subjective Norms, Positive and Negative Anticipated Emotions, Habits, Self-Efficacy, Desires, and Intentions surrounding their child's TV viewing) which was used to measure internal consistency reliability and construct validity. A subsample of participants completed the questionnaire twice to measure test-retest reliability. Further, parents completed a 7-day TV viewing diary for their preschooler, and a TV parenting practices questionnaire as measures of convergent validity.
RESULTS
Internal consistency reliability was generally acceptable for the MGDB scales (Cronbach's alphas> 0.7), except for the Desires scale, which was revealed to have two factors and the Attitudes and Perceived Behavioral Control scales. Test-retest reliability over 2 months had negligible to moderate correlations (r's = 0.28 to 0.61). Two structural equation models were conducted. One yielded acceptable model fit (x (97) = 113.65, p = .119) and the other had questionable model fit (x (97) = 125.39; p = .028). Testing convergent validity, only two MGDB scales (Habits and Self-Efficacy) were positively correlated with the TV parenting practices questionnaire (r's = 0.33 to 0.51), and none were meaningfully correlated with preschoolers' mean daily TV viewing.
CONCLUSIONS
Initial reliability and validity for some of the MGDB scales appear acceptable among parents of Latino preschoolers. Refinement of the instrument and testing among larger samples is necessary to fully evaluate psychometric properties. This instrument may be useful for characterizing Latino parents' attitudes and beliefs toward limiting their preschoolers' TV viewing and informing future TV reduction interventions.
TRIAL REGISTRATION
Clinical Trials NCT01216306 Registered October 6, 2010.
背景
准确测量父母对限制孩子看电视的态度和信念对于设计和评估有效的干预措施非常重要。本文评估了美国家庭中 3-5 岁拉丁裔学龄前儿童父母的目标导向行为模型（MGDB）量表的内部一致性信度、重测信度、聚合效度和构念效度，以描述拉丁裔父母对限制学龄前儿童看电视的态度和信念。
方法
参与者包括美国的 3-5 岁拉丁裔学龄前儿童的父母（n=186）。父母完成了一份社会人口学调查问卷和 105 项 MGDB 问卷（态度、感知的积极/消极行为控制、主观规范、积极和消极预期情绪、习惯、自我效能、欲望和意图围绕他们孩子的电视观看），用于测量内部一致性信度和构念效度。一部分参与者完成了两次问卷调查以测量重测信度。此外，父母为他们的学龄前儿童完成了一份为期 7 天的电视观看日记，以及一份电视育儿实践问卷作为聚合效度的测量。
结果
MGDB 量表的内部一致性信度通常是可以接受的（克朗巴赫的阿尔法>0.7），除了欲望量表，它被发现有两个因素，以及态度和感知的行为控制量表。在 2 个月的时间里，重测信度的相关性从微不足道到中度（r=0.28 到 0.61）。进行了两个结构方程模型。一个模型得出了可接受的模型拟合度（x（97）=113.65，p=0.119），另一个模型拟合度存在问题（x（97）=125.39；p=0.028）。检验聚合效度时，只有两个 MGDB 量表（习惯和自我效能）与电视育儿实践问卷呈正相关（r=0.33 到 0.51），并且与学龄前儿童平均每日电视观看时间均无显著相关性。
结论
MGDB 量表在拉丁裔学龄前儿童父母中，一些量表的初始可靠性和有效性似乎是可以接受的。需要对该工具进行改进并在更大的样本中进行测试，以充分评估心理测量特性。该工具可能有助于描述拉丁裔父母对限制其学龄前儿童看电视的态度和信念，并为未来的电视减少干预提供信息。
试验注册
临床Trials.gov NCT01216306 于 2010 年 10 月 6 日注册。
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