简短通用和运动营养知识问卷的编制与验证及运动员营养知识评估。
Development and validation of a brief general and sports nutrition knowledge questionnaire and assessment of athletes' nutrition knowledge.
机构信息
1Department of Rehabilitation, Nutrition and Sport, School of Allied Health, College of Science, Health and Engineering, La Trobe University, Melbourne, 3086 Australia.
2Office of the Deputy Vice-Chancellor Research, La Trobe University, Melbourne, 3086 Australia.
出版信息
J Int Soc Sports Nutr. 2018 Apr 19;15:17. doi: 10.1186/s12970-018-0223-1. eCollection 2018.
BACKGROUND
The Nutrition for Sport Knowledge Questionnaire (NSKQ) is an 89-item, valid and reliable measure of sports nutrition knowledge (SNK). It takes 25 min to complete and has been subject to low completion and response rates. The aim of this study was to develop an abridged version of the NSKQ (A-NSKQ) and compare response rates, completion rates and NK scores of the NSKQ and A-NSKQ.
METHODS
Rasch analysis was used for the questionnaire validation. The sample ( = 181) was the same sample that was used in the validation of the full-length NSKQ. Construct validity was assessed using the known-group comparisons method. Temporal stability was assessed using the test-retest reliability method. NK assessment was cross-sectional; responses were collected electronically from members of one non-elite Australian football (AF) and netball club, using Qualtrics Software (Qualtrics, Provo, UT).
RESULTS
The A-NSKQ has 37 items that assess general ( = 17) and sports ( = 20) nutrition knowledge (NK). Both sections are unidimensional (Perc5% = 2.84% [general] and 3.41% [sport]). Both sections fit the Rasch Model (overall-interaction statistic mean (SD) = - 0.15 ± 0.96 [general] and 0.22 ± 1.11 [sport]; overall-person interaction statistic mean (SD) = - 0.11 ± 0.61 [general] and 0.08 ± 0.73 [sport]; Chi-Square probability = 0.308 [general] and 0.283 [sport]). Test-retest reliability was confirmed ( = 0.8, < 0.001 [general] and = 0.7, P < 0.001 [sport]). Construct validity was demonstrated (nutrition students = 77% versus non-nutrition students = 60%, P < 0.001 [general] and nutrition students = 60% versus non-nutrition students = 40%, P < 0.001 [sport]. 177 usable survey responses from were returned. Response rates were low (7%) but completion rates were high (85%). NK scores on the A-NSKQ (46%) are comparable to results obtained in similar cohorts on the NSKQ (49%). The A-NSKQ took on average 12 min to complete, which is around half the time taken to complete the NSKQ (25 min).
CONCLUSIONS
The A-NSKQ is a valid and reliable, brief questionnaire designed to assess general NK (GNK) and SNK.
背景
营养与运动知识问卷（NSKQ）是一种 89 项的、有效的、可靠的运动营养知识（SNK）测量工具。它需要 25 分钟才能完成，且完成率和回应率都很低。本研究的目的是开发 NSKQ 的缩写版（A-NSKQ），并比较 NSKQ 和 A-NSKQ 的回应率、完成率和 NK 得分。
方法
使用 Rasch 分析对问卷进行验证。样本（n=181）与用于验证完整 NSKQ 的样本相同。使用已知组比较法评估结构有效性。使用测试-再测试可靠性法评估时间稳定性。NK 评估是横断面的；使用 Qualtrics 软件（Qualtrics，普罗沃，犹他州）从一个非精英澳大利亚足球（AF）和无挡板篮球俱乐部的成员中以电子方式收集了回应。
结果
A-NSKQ 有 37 个项目，评估一般（n=17）和运动（n=20）营养知识（NK）。两个部分都是单维的（Perc5%=2.84%[一般]和 3.41%[运动]）。两个部分都符合 Rasch 模型（整体-交互统计平均值（SD）=-0.15±0.96[一般]和 0.22±1.11[运动]；整体-个人交互统计平均值（SD）=-0.11±0.61[一般]和 0.08±0.73[运动]；卡方概率=0.308[一般]和 0.283[运动]）。测试-再测试可靠性得到了确认（n=0.8，P<0.001[一般]和 n=0.7，P<0.001[运动]）。结构有效性得到了证明（营养学生=77%，非营养学生=60%，P<0.001[一般]和营养学生=60%，非营养学生=40%，P<0.001[运动]）。从 177 份可用的调查回应中，收到了 177 份。回应率很低（7%），但完成率很高（85%）。A-NSKQ 的 NK 得分（46%）与在类似人群中在 NSKQ 上获得的结果（49%）相当。A-NSKQ 平均需要 12 分钟才能完成，大约是完成 NSKQ（25 分钟）所需时间的一半。
结论
A-NSKQ 是一种有效的、可靠的、简短的问卷，旨在评估一般 NK（GNK）和 SNK。
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