The stability and reliability of self-reported drinking measures
The stability and reliability of self-reported drinking measures
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DOI：
10.15288/jsa.2006.67.738
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发表时间：
2006-09-01
期刊：
影响因子：
--
通讯作者：
Johnson, Fred W.
中科院分区：
文献类型：
--
作者：
Gruenewald, Paul J.;Johnson, Fred W.
目的：自我报告饮酒测量的估计重测信度受受试者提供关于其自身行为的一致性报告的程度(可靠性)和所报告的行为随时间稳定的程度(稳定性)的影响。不稳定的行为可能会得到可靠的报告，但随着时间的推移相关性很差。这项研究测试了对饮酒模式稳定性的估计是否与饮酒措施的重测可靠性有关。方法：数据来自一项普通人群电话调查，调查对象为307名成年饮酒者，每次间隔1个月。饮酒测量包括开始年龄，以及用于估计饮酒频率、平均饮酒量和总饮酒量的分级频率测量。使用一个经过良好测试的模型来评估饮酒稳定性，该模型用于分析饮酒模式(即饮酒量和频率的差异)。使用异方差回归模型将时间1和时间2之间的自我报告中的协方差划分为与稳定性和可靠性相关的分量，从而更准确地描述了不同饮酒群体的饮酒测量的可靠性。结果：总体重测信度良好，从饮酒量的最低0.65到饮酒频率的0.85不等。数量测量的稳定性对估计的重测信度有很大影响。稳定的饮酒模式与更高的重测可靠性有关。结论：来自普通人群电话调查的酒精使用数据总体上是可靠的。然而，观察到的可靠性是饮酒模式稳定性的函数。表面上不可靠的自我报告可能非常可靠，但可能反映了不稳定的饮酒模式。
Objective: Estimated test-retest reliabilities of self-reported drinking measures are affected by the extent to which respondents provide consistent reports of their own behaviors (reliability) and the extent to which the behaviors reported are stable over time (stability). Unstable behaviors may be reliably reported but correlate poorly over time. This study tests whether an estimate of the stability of drinking patterns is related to test-retest reliabilities of drinking measures. Method: Data were from a general population telephone survey given twice, I month apart, to 307 adult drinkers. Drinking measures included age of onset, and graduated frequency measures used to estimate drinking frequencies, average quantities, and total alcohol consumption. Measures of drinking stability were estimated using a well-tested model for the analysis of drinking patterns (i.e., variances in drinking quantities and frequencies). Heteroscedastic regression models were used to partition covariances in self-reports between Times 1 and 2 into components related to stability and reliability, providing a more accurate picture of the reliability of drinking measures for different drinking groups. Results: Overall test-retest reliabilities were good, ranging from a low of .65 for drinking quantities to a high of .85 for drinking frequencies. The stability of quantity measures had a large impact on estimated test-retest reliabilities. Stable drinking patterns were associated with much greater test-retest reliabilities. Conclusions: Data on alcohol use from general population telephone surveys are generally reliable. However, observed reliability is a function of the stability of drinking patterns. Ostensibly unreliable self-reports may be highly reliable but may reflect unstable drinking patterns.