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51.
This study investigated the extent to which the type of task influences children's prospective memory performance. 80 subjects, aged 7 to 11 yr. participated in an experiment in which the type of task (time-based vs event-based) and the retention interval (5 min. vs 10 min.) varied. The prospective memory task was embedded in a principal task lasting about 15 min. and required subjects perform an action at a given time or in response to a specific cue. Analysis indicated that the delay was associated with prospective memory performance only on a time-based task in which the intention has to be performed after 10 min. but not age. Analysis indicated also that time monitoring was associated with shorter latency between the target time and the execution of the intention on the time-based task. Implications were discussed. 相似文献
52.
Tine Nielsen Ida S. Friderichsen Signe Boe Rayce 《Scandinavian journal of psychology》2021,62(1):104-115
Student well‐being is a growing issue in higher education, and assessment of the prevalence of conditions as loneliness is therefore important. In higher education and population surveys the Three‐Item Loneliness Scale (T‐ILS) is used increasingly. The T‐ILS is attractive for large multi‐subject surveys, as it consists of only three items (derived from the UCLA Loneliness Scale). Several ways of classifying persons as lonely based on T‐ILS scores exist: dichotomous and trichotomous classification schemes and use of sum scores with rising levels indicating more loneliness. The question remains whether T‐ILS scores are comparable across the different population groups where they are used or across groups of students in the higher education system. The aim was to investigate whether the T‐ILS suffers from differential item functioning (DIF) that might change the loneliness classification among higher education students, using a large sample just admitted to 22 different academy profession degree programs in Denmark (N = 3,757). DIF was tested relative to degree program, age groups and gender. The framework of graphical loglinear Rasch models was applied, as this allows for adjustment of sum scores for uniform DIF, and thus for assessment of whether DIF might change the classification. Two items showed DIF relative to degree program and gender, and adjusting for this DIF changed the classification for some subgroups. The consequences were negligible when using a dichotomous classification and larger when using a trichotomous classification. Therefore, trichotomous classification should be used with caution unless suitable adjustments for DIF are done prior to classification. 相似文献
53.
When we reach to grasp something, we need to take into account both the properties of the object we are grasping and the intention we have in mind. Previous research has found these constraints to be visible in the reach-to-grasp kinematics, but there is no consensus on which kinematic parameters are the most sensitive. To examine this, a systematic literature search and meta-analyses were performed. The search identified studies assessing how changes in either an object property or a prior intention affect reach-to-grasp kinematics in healthy participants. Hereafter, meta-analyses were conducted using a restricted maximum likelihood random effect model. The meta-analyses showed that changes in both object properties and prior intentions affected reach-to-grasp kinematics. Based on these results, the authors argue for a tripartition of the reach-to-grasp movement in which the accelerating part of the reach is primarily associated with transporting the hand to the object (i.e., extrinsic object properties), the decelerating part of the reach is used as a preparation for object manipulation (i.e., prepare the grasp or the subsequent action), and the grasp is associated with manipulating the object's intrinsic properties, especially object size. 相似文献
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Lancioni GE Singh NN O'Reilly MF Sigafoos J Buonocunto F Sacco V D'Agostino I Navarro J Addante LM 《Perceptual and motor skills》2010,111(2):485-495
The possibility of enabling two adults with acquired brain injury and profound multiple disabilities to use microswitch-based technology to attain preferred environmental stimuli on their own was assessed. Each of the participants was provided with two microswitches that could be activated by right and left head-turning or head-bending responses. The microswitches were introduced sequentially according to a multiple probe design across microswitches (responses) and allowed access to different sets of auditory or visual stimuli. Eventually, the two microswitches were made available simultaneously. Sessions lasted 5 min. Each participant learned to use the two microswitches successfully and maintained consistent levels of responding when they were simultaneously available. During this phase, both participants showed large within-session variations in their right and left response frequencies, with one of them showing an overall prevalence of the left-side response. The importance of assistive technology within programs for persons with acquired brain injury and multiple disabilities is discussed. 相似文献
57.
In recent years, schools have been increasingly involved in youth's health-related behavior, particularly risky health behaviors (e.g., HIV/AIDS and pregnancy prevention programs). This study examined how acculturation processes among adolescent girls who are recent immigrants from the former Soviet Union (FSU) affect their practices of risky sexual behavior (RSB), defined as behavior that leads to increased risk for unplanned pregnancy or HIV infection. The study used an ecological perspective to understand how families and peers play a pivotal role in these acculturation processes. The results highlight the protective role of natal culture for RSB for this group of recent immigrants. The study also indicates that a higher level of acculturation to American culture is related to increased RSB in these recent immigrants. Thus, the study challenges the notion that biculturalism is always advantageous. School-based and after-school activities that incorporated Russian culture were found to play a protective role. The intergenerational discrepancies between adolescent girls and their parents and between peers and parents were predictive of RSB. Practical implications for practice of school professionals are discussed. 相似文献
58.
Ida T. Tidemann Annika M. D. Melinder 《The British journal of developmental psychology》2022,40(3):384-397
Infants are vulnerable to changes in the dyadic synchrony with their caregivers, as demonstrated in numerous experiments employing the still-face paradigm. The sudden lack of attunement causes infant stress reactions and the still-face literature have suggested potential long-term costs of this in terms of development of social, emotional and cognitive skills. Acknowledging the rapid technological development accompanied by altered practices in the parent-infant interaction, the current study investigates infant behavioural reactions in a similar experimental paradigm, manipulating parental responsiveness and sensitivity in a slightly different manner. In the current study, the parent interrupts the ongoing interaction, simulating occupation with a smartphone, rather than making a ‘still-face’. In a cross-sectional design, infants of six, nine and twelve months display increased levels of protest behaviour in response to the interrupted interaction with their parent, together with lowered levels of positive engagement and social monitoring, suggesting similar behavioural responses as the still-face effect. Implications for infant social and emotional development, as well as for mindful tech habits are discussed. 相似文献
59.
Ida Gran Andersen 《Social Psychology of Education》2018,21(5):1021-1044
I combine sociological and economic research to test a new theoretical model of the causes and consequences of teacher responses to students’ track location. I examine the impact of teacher reward structures on educational inequality by analyzing how grading practices affect students’ effort and achievement across tracks. Differences in grading practices determine incentive structures for student behavior and educational investments and thus may be an important mechanism in explaining track effects on academic achievement. I apply student fixed effects models across tracks to the NELS:88 and find that, first, track placement affects achievement, second, although grading practices affect achievement, they only explain a minor part of the track effect, and, third, teacher expectations and perceived class ability level explain the positive track effect for high-track students. These findings suggest that high-track students have higher achievement because their teachers perceive them as better students. 相似文献
60.
The purpose of this study was to determine the quantitative relationships between the server's motion and the receiver's anticipation using a computer graphic animation of tennis serves. The test motions were determined by capturing the motion of a model player and estimating the computational perturbations caused by modulating the rotation of the player's elbow and forearm joints. Eight experienced and eight novice players rated their anticipation of the speed, direction, and spin of the ball on a visual analogue scale. The experienced players significantly altered some of their anticipatory judgment depending on the percentage of both the forearm and elbow modulations, while the novice players indicated no significant changes. Multiple regression analyses, including that of the racket's kinematic parameters immediately before racket-ball impact as independent variables, showed that the experienced players demonstrated a higher coefficient of determination than the novice players in their anticipatory judgment of the ball direction. The results have implications on the understanding of the functional relation between a player's motion and the opponent's anticipatory judgment during real play. 相似文献