The ad-libitum alcohol 'taste test': secondary analyses of potential confounds and construct validity.
The ad-libitum alcohol 'taste test': secondary analyses of potential confounds and construct validity.
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DOI：
10.1007/s00213-015-4171-z
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发表时间：
2016-03
影响因子：
3.4
通讯作者：
Field M
中科院分区：
文献类型：
--
作者：
Jones A;Button E;Rose AK;Robinson E;Christiansen P;Di Lemma L;Field M
饮酒的动机可以在实验室中通过一种随意的“味觉测试”来测量，在这种测试中，参与者对酒精饮料的味道进行评级，同时他们的摄入量被秘密监控。很少有人知道这个范式的结构效度。本研究的目的是调查变量，可能会损害这一范式的有效性及其结构效度。我们重新分析了来自我们实验室的12项研究的数据，这些研究纳入了随意品尝试验。我们认为一天中的时间和参与者对味觉测试目的的意识是潜在的混杂变量。我们研究了性别，典型的酒精消费，主观渴望，酒精使用障碍识别测试的分数和饮料的感知愉悦度是否预测随意消费（结构效度）。我们纳入了762名参与者（462名女性）。参与者的意识和一天中的时间与自由饮酒无关。男性饮酒量显著高于女性（p < 0.001），典型饮酒量（p = 0.04）、渴望（p < 0.001）和对饮料的愉悦感（p = 0.04）的个体差异都是自由饮酒的显著预测因素。我们发现几乎没有证据表明一天中的时间或参与者的意识会影响酒精消费。自由饮用量和典型的酒精消费量之间的关系，渴望和愉快的饮料评级的味觉测试的结构效度的支持。自由品尝试验是实验室评估酒精摄入量的有效方法。
Motivation to drink alcohol can be measured in the laboratory using an ad-libitum ‘taste test’, in which participants rate the taste of alcoholic drinks whilst their intake is covertly monitored. Little is known about the construct validity of this paradigm. The objective of this study was to investigate variables that may compromise the validity of this paradigm and its construct validity. We re-analysed data from 12 studies from our laboratory that incorporated an ad-libitum taste test. We considered time of day and participants’ awareness of the purpose of the taste test as potential confounding variables. We examined whether gender, typical alcohol consumption, subjective craving, scores on the Alcohol Use Disorders Identification Test and perceived pleasantness of the drinks predicted ad-libitum consumption (construct validity). We included 762 participants (462 female). Participant awareness and time of day were not related to ad-libitum alcohol consumption. Males drank significantly more alcohol than females (p < 0.001), and individual differences in typical alcohol consumption (p = 0.04), craving (p < 0.001) and perceived pleasantness of the drinks (p = 0.04) were all significant predictors of ad-libitum consumption. We found little evidence that time of day or participant awareness influenced alcohol consumption. The construct validity of the taste test was supported by relationships between ad-libitum consumption and typical alcohol consumption, craving and pleasantness ratings of the drinks. The ad-libitum taste test is a valid method for the assessment of alcohol intake in the laboratory.