Examining convergence of retrospective and ecological momentary assessment measures of negative affect and eating disorder behaviors.
Examining convergence of retrospective and ecological momentary assessment measures of negative affect and eating disorder behaviors.
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检查负面情绪和饮食失调行为的回顾性和生态瞬时评估措施的收敛性。
DOI：
10.1002/eat.22352
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Crosby,RossD
中科院分区：
文献类型：
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作者：
Wonderlich,JosephA;Lavender,JasonM;Wonderlich,StephenA;Peterson,CarolB;Crow,ScottJ;Engel,ScottG;LeGrange,Daniel;Mitchell,JamesE;Crosby,RossD
通过回顾性评估形式收集的数据受到各种回忆偏差的影响。生态瞬时评估（EMA）是一种替代方法，涉及在参与者的自然环境中重复进行瞬时评估，从而减少回忆偏差并提高生态有效性。EMA已被用于许多以前的研究中，研究各种结构的理论相关性进食disorders.MethodThis调查包括三个以前发表的研究与不同的临床样本的数据：（a）妇女神经性厌食症（N= 118），（B）妇女神经性贪食症（N= 133），和（c）肥胖的男性和女性（N= 50; 9与当前暴食症）。每项研究都使用传统的回顾性评估和EMA评估了负性情感状态和进食障碍行为。斯皮尔曼rho相关性被用来评估回顾性与EMA措施的情感和/或行为结构在每个样本中的一致性。Bland-Altman图也被用来进一步评估饮食失调behaviors.ResultsThere评估的一致性在所有三项研究的负面情绪状态的措施是中度到强烈的一致性。在暴饮暴食和运动频率的测量中也发现了中度到高度的一致性。最强有力的证据一致的测量方法被发现为purging behaviors.DiscussionOverall，这些初步的研究结果支持收敛的回顾性和EMA评估的负面情绪状态和各种饮食失调行为。鉴于这些评估方法中的每一种都有其优缺点，今后的实证研究中正在研究的具体问题应该为关于选择最适当方法的决定提供信息。© 2014 Wiley Periodicals，Inc. (Int J Eat Disord 2015; 48：305-311）
ObjectiveData gathered via retrospective forms of assessment are subject to various recall biases. Ecological momentary assessment (EMA) is an alternative approach involving repeated momentary assessments within a participant's natural environment, thus reducing recall biases and improving ecological validity. EMA has been used in numerous prior studies examining various constructs of theoretical relevance to eating disorders.MethodThis investigation includes data from three previously published studies with distinct clinical samples: (a) women with anorexia nervosa (N= 118), (b) women with bulimia nervosa (N= 133), and (c) obese men and women (N= 50; 9 with current binge eating disorder). Each study assessed negative affective states and eating disorder behaviors using traditional retrospective assessments and EMA. Spearman rho correlations were used to evaluate the concordance of retrospective versus EMA measures of affective and/or behavioral constructs in each sample. Bland–Altman plots were also used to further evaluate concordance in the assessment of eating disorder behaviors.ResultsThere was moderate to strong concordance for the measures of negative affective states across all three studies. Moderate to strong concordance was also found for the measures of binge eating and exercise frequency. The strongest evidence of concordance across measurement approaches was found for purging behaviors.DiscussionOverall, these preliminary findings support the convergence of retrospective and EMA assessments of both negative affective states and various eating disorder behaviors. Given the advantages and disadvantages associated with each of these assessment approaches, the specific questions being studied in future empirical studies should inform decisions regarding selection of the most appropriate method. © 2014 Wiley Periodicals, Inc. (Int J Eat Disord 2015; 48:305–311)