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981.
Pearson now uses a technology-based testing platform, Q-Interactive, to administer tests previously available in paper versions. The same norms are used for both versions; Pearson's in-house equivalency studies indicated that both versions are equated. The goal of the current study is to independently evaluate equivalency findings. For the current study, equivalency was measured using the three-part test set forth by American Psychological Association in 1986. First, the researchers examined rank order similarity; then, they examined mean score similarity; and finally, they examined score-distribution similarity. One of these equivalency standards (rank order similarity) was not met, and one other standard is debatable (mean score similarity); therefore, the authors noted concerns about the use of Peabody Picture Vocabulary Test, Fourth Edition Q-Interactive for preschoolers. New normative data should be collected.  相似文献   
982.
ABSTRACT

Heart rate (HR), when combined with accelerometry, can dramatically improve estimates of energy expenditure and sleep. Advancements in technology, via the development and introduction of small, low-cost photoplethysmography devices embedded within wrist-worn consumer wearables, have made the collection of heart rate (HR) under free-living conditions more feasible. This systematic review and meta-analysis compared the validity of wrist-worn HR estimates to a criterion measure of HR (electrocardiography ECG or chest strap). Searches of PubMed/Medline, Web of Science, EBSCOhost, PsycINFO, and EMBASE resulted in a total of 44 articles representing 738 effect sizes across 15 different brands. Multi-level random effects meta-analyses resulted in a small mean difference (beats per min, bpm) of ?0.40 bpm (95 confidence interval (CI) ?1.64 to 0.83) during sleep, ?0.01 bpm (?0.02 to 0.00) during rest, ?0.51 bpm (?1.60 to 0.58) during treadmill activities (walking to running), while the mean difference was larger during resistance training (?7.26 bpm, ?10.46 to ?4.07) and cycling (?4.55 bpm, ?7.24 to ?1.87). Mean difference increased by 3 bpm (2.5 to 3.5) per 10 bpm increase of HR for resistance training. Wrist-worn devices that measure HR demonstrate acceptable validity compared to a criterion measure of HR for most common activities.  相似文献   
983.
Sedentary behaviour (SB) has emerged as a modifiable risk factor, but little is known about measurement errors of SB. The purpose of this study was to determine the validity of 24-h Physical Activity Recall (24PAR) relative to SenseWear Armband (SWA) for assessing SB. Each participant (n = 1485) undertook a series of data collection procedures on two randomly selected days: wearing a SWA for full 24-h, and then completing the telephone-administered 24PAR the following day to recall the past 24-h activities. Estimates of total sedentary time (TST) were computed without the inclusion of reported or recorded sleep time. Equivalence testing was used to compare estimates of TST. Analyses from equivalence testing showed no significant equivalence of 24PAR for TST (90% CI: 443.0 and 457.6 min · day–1) relative to SWA (equivalence zone: 580.7 and 709.8 min · day–1). Bland–Altman plots indicated individuals that were extremely or minimally sedentary provided relatively comparable sedentary time between 24PAR and SWA. Overweight/obese and/or older individuals were more likely to under-estimate sedentary time than normal weight and/or younger individuals. Measurement errors of 24PAR varied by the level of sedentary time and demographic indicators. This evidence informs future work to develop measurement error models to correct for errors of self-reports.  相似文献   
984.
Recommendations from multiple professional organizations (e.g., American Psychological Association, Council for Exceptional Children, National Association of School Psychologists) suggest that collection of data on the social validity in practice and research is necessary. The purpose of this study was to systematically review the inclusion of acceptability measurement, which has been one of the most common way to measure social validity, within the intervention literature published across five school psychology journals between 2005 and 2017. Findings suggested just over one third of intervention studies included acceptability assessment. Intervention studies that were delivered individually, targeted behavior skills, and included treatment integrity data were significantly more likely to include acceptability assessment. When acceptability was measured it was typically evaluated one-time following treatment completion using self-report tools completed by teachers. Nearly half of studies employed one of seven published tools and the remaining half used researcher-created measures. The published tools were adapted in a variety of ways and inconsistently reported either item or total scores making it difficult to summarize these data according to intervention target or delivery format. Implications of findings are described.  相似文献   
985.
Developments concerning report cards have led to a potential shift from reporting traditional grades to reporting multiple competencies within and across subjects. In this study, we analyzed the dimensional structure of the teacher judgments on a competency-based report card on fourth-grade elementary school students (N = 469). With a methodologically innovative approach of combining exploratory structural equation modeling (ESEM) and confirmatory factor analysis (CFA), we found one learning-oriented and one social-oriented generic subject-unspecific factor of competency judgments and single factors for each included subject. All subject factors showed relatively high correlations with the respective traditional grades. Second-order commonalities further indicated a general factor represented almost perfectly by the learning-oriented generic judgments. Our analyses generally justified the use of competency-based report cards in terms of the dimensional structure and the association with traditional grades. Further, generic subject-unspecific competency judgments contribute to disentangling the multidimensionality of teacher judgments.  相似文献   
986.
主观疲劳量表(Rating of Perceived Exertion,RPE)是一种在国内外被广泛采用的运动负荷量化评估手段。基于对国内外体育科学研究相关领域的数据库的文献综述,对采用单次运动RPE(session Rating of Perceived Exertion,sRPE)方法的研究和文献进行综述,发现:(1)已经有很多国内外的研究证实sRPE量化评估运动负荷方法的有效性和可靠性,可适用于多种项目、男性和女性、多个年龄段和水平层次的运动员的不同内容或类型的运动或训练,sRPE与客观指标之间具有较高的相关性;(2)sRPE量化评估运动负荷方法具有生态效用,可以适用于一个更长远的训练周期(比如一年甚至多年),还可用于计算训练单调性,分析运动损伤的发生风险,有助于优化训练分期,优化训练节奏,保持训练一致性,避免过度负荷甚至过度训练和运动损伤;(3)sRPE量化评估运动负荷的结果与教练员之间的关系的研究较少,尤其有关教练员主观判断的训练课前sRPE与运动员训练课后的sRPE之间的关系的研究,同时有研究报告一些社会学等因素可能会对sRPE量化评估运动负荷造成影响;(4)当前国内缺乏针对青少年运动员、不同项目运动员在不同训练类型和训练分期中应用sRPE量化评估的研究,以及中文文本的sRPE量表的有效性与可靠性的研究。  相似文献   
987.
和积网络(sum-product networks,SPN)是一种在多层网络中进行快速推理的深度概率图模型,在人工智能领域有广泛应用前景。SPN的有效性即它可用来正确表示概率分布,使得SPN可以表示一些图模型的配分函数和所有的边缘分布。由于只有部分SPN是有效的,快速判断SPN的有效性很有必要。针对SPN理论体系中的有效性验证问题,讨论并揭示SPN内部结构性质,提出验证SPN有效性的两个算法,并给出算法的正确性证明及其复杂度。还通过给出一种新的SPN中生成树个数的计算方法来验证SPN有效性算法的可靠性。  相似文献   
988.
I discuss the contribution by Davenport, Davison, Liou, & Love (2015) in which they relate reliability represented by coefficient α to formal definitions of internal consistency and unidimensionality, both proposed by Cronbach (1951). I argue that coefficient α is a lower bound to reliability and that concepts of internal consistency and unidimensionality, however defined, belong to the realm of validity, viz. the issue of what the test measures. Internal consistency and unidimensionality may play a role in the construction of tests when the theory of the attribute for which the test is constructed implies that the items be internally consistent or unidimensional. I also offer examples of attributes that do not imply internal consistency or unidimensionality, thus limiting these concepts' usefulness in practical applications.  相似文献   
989.
This study compared accuracy of energy expenditure (EE) prediction models from accelerometer data collected in structured and simulated free-living settings. Twenty-four adults (mean age 45.8 years, 50% female) performed two sessions of 11 to 21 activities, wearing four ActiGraph GT9X Link activity monitors (right hip, ankle, both wrists) and a metabolic analyzer (EE criterion). Visit 1 (V1) involved structured, 5-min activities dictated by researchers; Visit 2 (V2) allowed participants activity choice and duration (simulated free-living). EE prediction models were developed incorporating data from one setting (V1/V2; V2/V2) or both settings (V1V2/V2). The V1V2/V2 method had the lowest root mean square error (RMSE) for EE prediction (1.04–1.23 vs. 1.10–1.34 METs for V1/V2, V2/V2), and the ankle-worn accelerometer had the lowest RMSE of all accelerometers (1.04–1.18 vs. 1.17–1.34 METs for other placements). The ankle-worn accelerometer and associated EE prediction models developed using data from both structured and simulated free-living settings should be considered for optimal EE prediction accuracy.  相似文献   
990.
摘要:目的:基于“Clutch”运动员理论模型的连续研究,进一步探索模型操作性测量的实际应用。方法:运用概念构图程序形成初步量表,采用相关分析、探索性因素分析、验证性因素分析等对量表的信、效度进行检验。结果:“Clutch”运动员测量模型共39个条目,8个维度,并命名为《“Clutch”运动员特征量表》。对量表信度和效度的分析表明,量表的二阶单因素模型是可以接受的,其绝对适配统计量、增值适配统计量、简约适配统计量、模型内在结构适配度、信度、外部效度等都达到了比较理想的水平,具有良好的建构效度。结论:“Clutch”运动员理论模型可以发展为一个二阶的具有实际意义的测量模型,该模型具有良好的心理测量指标和实际应用的有效性。  相似文献   
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