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281.
The purpose of this experiment was to determine whether performance on a subsequent exam was affected when two lessons were as similar as possible except that one was presented in class and the other was presented online. In a hybrid course, half of the lessons were presented in the classroom as narrated Power Point presentations and half of the lessons were presented online as narrated Power Point presentations. Online student–teacher interaction took place in a chatroom. Furthermore, for each question on the midterm or final examination, the students had answered a pre-lesson and post-lesson question, integrated with the appropriate lesson, which queried the same fact statement as the exam question. Students performed better on post-lesson questions asked in class than post-lesson questions asked online. They also performed better on exam questions on classroom lessons than exam questions on online lessons. The results support the conclusion that social interaction aids learning. 相似文献
282.
Potential Performance Theory (PPT) is a general theory for parsing observed performance into the underlying strategy and the consistency with which it is used. Although empirical research has supported that PPT is useful, it is desirable to have more information about the bias and standard errors of PPT findings. It also is beneficial to know the effects of violations of PPT assumptions. The authors present computer simulations that evaluate bias and standard errors at varying levels of strategy, consistency, and number of trials per participant. The simulations show that, when the assumptions are true, there is very little bias and the standard errors are low when there are moderate or large numbers of trials per participant (e.g., N = 50 or N = 100). But when the independence assumption is violated, PPT provides biased findings, although the bias is quite small unless the violations are large. 相似文献
283.
Our goal is to demonstrate that potential performance theory (PPT) provides a unique type of methodology for studying the use of heuristics under time pressure. While most theories tend to focus on different types of strategies, PPT distinguishes between random and nonrandom effects on performance. We argue that the use of a heuristic under time pressure actually can increase performance by decreasing randomness in responding. We conducted an experiment where participants performed a task under time pressure or not. In turn, PPT equations make it possible to parse the observed change in performance from the unspeeded to the speeded condition into that which is due to a change in the participant's randomness in responding versus that which is due to a change in systematic factors. We found that the change in randomness was slightly more important than the change in systematic factors. 相似文献
284.
Effects of script training on the peer‐to‐peer communication of children with autism spectrum disorder
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Keith McBurnett Miguel Villodas G. Leonard Burns Stephen P. Hinshaw Allyson Beaulieu Linda J. Pfiffner 《Journal of abnormal child psychology》2014,42(1):37-48
We evaluated the latent structure and validity of an expanded pool of Sluggish Cognitive Tempo (SCT) items. An experimental rating scale with 44 candidate SCT items was administered to parents and teachers of 165 children in grades 2–5 (ages 7–11) recruited for a randomized clinical trial of a psychosocial intervention for Attention-Deficit/Hyperactivity Disorder, Predominantly Inattentive Type. Exploratory factor analyses (EFA) were used to extract items with high loadings (>0.59) on primary factors of SCT and low cross-loadings (0.30 or lower) on other SCT factors and on the Inattention factor of ADHD. Items were required to meet these criteria for both informants. This procedure reduced the pool to 15 items. Generally, items representing slowness and low initiative failed these criteria. SCT factors (termed Daydreaming, Working Memory Problems, and Sleepy/Tired) showed good convergent and discriminant validity in EFA and in a confirmatory model with ADHD factors. Simultaneous regressions of impairment and comorbidity on SCT and ADHD factors found that Daydreams was associated with global impairment, and Sleepy/Tired was associated with organizational problems and depression ratings, across both informants. For teachers, Daydreams also predicted ODD (inversely); Sleepy/Tired also predicted poor academic behavior, low social skills, and problem social behavior; and Working Memory Problems predicted organizational problems and anxiety. When depression, rather than ADHD, was included among the predictors, the only SCT-related associations rendered insignificant were the teacher-reported associations of Daydreams with ODD; Working Memory Problems with anxiety, and Sleepy/Tired with poor social skills. SCT appears to be meaningfully associated with impairment, even when controlling for depression. Common behaviors resembling Working Memory problems may represent a previously undescribed factor of SCT. 相似文献
287.
Kenneth G. Rice Clarissa M. E. Richardson Stephen Tueller 《Journal of personality assessment》2014,96(3):368-379
We created a shorter and more refined item set from the Almost Perfect Scale–Revised (APS–R; Slaney, Mobley, Trippi, Ashby, & Johnson, 1996; Slaney, Rice, Mobley, Trippi, & Ashby, 2001) to measure 2 major dimensions of perfectionism: standards (high performance expectations) and discrepancy (self-critical performance evaluations). In Study 1, after testing the internal structure of the measure (N = 749), a subset of the current APS–R items was derived (Short Almost Perfect Scale [SAPS]) that possessed good psychometric features, such as strong item–factor loadings, score reliability, measurement invariance between women and men, and criterion-related validity through associations with neuroticism, conscientiousness, academic performance, and depression. Controlling for neuroticism and conscientiousness, factor mixture modeling supported a 2-factor, 3-class model of perfectionism, and results were consistent with labeling the classes as nonperfectionists and adaptive and maladaptive perfectionists. Measurement results were cross-validated in a separate sample (N = 335). Study 2 also provided substantial evidence for the convergent, discriminant, and criterion-related validity of SAPS scores. Both studies supported the SAPS as a brief and psychometrically strong measure of major perfectionism factors and classes of perfectionists. 相似文献
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Collin Rice 《Philosophy and phenomenological research》2016,92(3):597-619
In contrast to earlier views that argued for a particular kind of concept (e.g. prototypes), several recent accounts have proposed that there are multiple distinct kinds of concepts, or that there is a plurality of concepts for each category. In this paper, I argue for a novel account of concepts as pluralistic hybrids. According to this view, concepts are pluralistic because there are several concepts for the same category whose use is heavily determined by context. In addition, concepts are hybrids because they typically link together several different kinds of information that are used in the same cognitive processes. This alternative view accounts for the available empirical data, allows for greater cognitive flexibility than Machery's recent account, and overcomes several objections to traditional hybrid views. 相似文献
290.