Stephen C. Want, Lilach Dahoah Halevi, Zahra Vahedi, Alyssa Saiphoo
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引用次数: 0
摘要
视觉模拟量表(VAS)通常用于测量对身体状态满意度的短期影响,即当下对自己身体的主观评价。然而,视觉模拟量表缺乏易于理解的指标来比较和解释不同效果的大小,因此研究人员经常得出这样的结论:在这些 101 分的量表上,任何具有统计学意义的变化实际上都是重要的。除了重测信度和结构效度之外,我们在这里还估算了单项身体满意度 VAS 的最小主观体验差异。在两个时间点之间,VAS 的七分变化是一个有用的分界点,可以区分主观上没有变化的参与者(n = 603)和身体满意度至少略有下降的参与者(n = 301)。具体到媒体对身体满意度的影响,我们展示了在比较和解释不同效应的大小以及确定谁受谁不受这些效应的影响时,如何将主观感受到的最小差异用作易于解释的效应大小指标。我们强调了研究人员如何利用这一指标来帮助探索和交流对身体满意度的不同短期影响。
Seven points as an estimate of the smallest subjectively experienced decrease in body satisfaction on a one-item Visual Analogue Scale
Visual Analogue Scales (VASs) are very commonly used to measure short-term effects on state body satisfaction, the in-the-moment subjective evaluation of one’s own body. However, VASs lack easily understood metrics for comparing and interpreting the size of different effects, with the result that researchers often conclude that any statistically significant change on these 101-point scales is practically important. In addition to test-retest reliability and construct validity, here we estimate the smallest subjectively experienced difference for a one-item body satisfaction VAS. Seven points of change on the VAS was a useful cut-off for distinguishing participants who subjectively experienced no change (n = 603) versus those who experienced at least a little decrease in body satisfaction (n = 301) between two timepoints. With reference specifically to media influences on body satisfaction, we show how the smallest subjectively experienced difference may be used as an easily interpreted effect size metric when comparing and interpreting the size of different effects, as well as determining who is, and who is not, subject to those effects. We highlight how having this metric available to researchers can aid in the exploration and communication of different short-term influences on state body satisfaction.
期刊介绍:
Body Image is an international, peer-reviewed journal that publishes high-quality, scientific articles on body image and human physical appearance. Body Image is a multi-faceted concept that refers to persons perceptions and attitudes about their own body, particularly but not exclusively its appearance. The journal invites contributions from a broad range of disciplines-psychological science, other social and behavioral sciences, and medical and health sciences. The journal publishes original research articles, brief research reports, theoretical and review papers, and science-based practitioner reports of interest. Dissertation abstracts are also published online, and the journal gives an annual award for the best doctoral dissertation in this field.