How the ultimate proficiency in a second language is affected by the age at which learners begin learning the target language was studied. Results showed a striking difference in mean reaction time for native versus nonnative groups, even for early bilinguals. (16 references) (Author/LB)

Children and adults were tested on six speeded perceptual-motor and cognitive tasks, including a (1) response time task; (2) button tapping task; (3) pegboard task; (4) coding task; (5) picture matching task; and (6) mental addition task. Age-related change in processing time on most of these tasks was described by a single exponential function.…

Describes study of undergraduates that measured the effect of audiovisual channel correspondence during television news programs on attention and memory. Learning variables in multimedia presentations are discussed, reaction time with visual and auditory probes is examined, factual memory and visual memory tests are described, and implications for…

Discussion of time-related measures in computerized ability tests focuses on a study of college students that used two intelligence test item types to develop a multitrait, multimethod assessment of response time measures. Convergent and discriminant validation are discussed, correlations between response time and accuracy are examined, and…

One symptom of depression is loss of motivation, which can be defined as responsiveness to response-eliciting stimuli and quantified as reward-related behavioral output. Long-term changes in reward-related behavior have been shown to follow early life stress. Most rodent studies investigating the effects of postnatal separation, an early stress,…

Background: This study presents two experiments that investigated whether children with autism were susceptible to the Thatcher illusion. Perception of the Thatcher illusion requires being able to compute second-order configural relations for facial stimuli. Method: In both experiments children with autism were matched for non-verbal and verbal…

In low-stakes testing, the motivation levels of examinees are often a matter of concern to test givers because a lack of examinee effort represents a direct threat to the validity of the test data. This study investigated the use of response time to assess the amount of examinee effort received by individual test items. In 2 studies, it was found…

Recently, there has been a resurgence of interest in the use of response latencies in psychological assessment. Some research has suggested that response times associated with answering personality and integrity questionnaires may be useful in differentiating among honest responders and individuals who are lying. Using an experimental paradigm…

The influence of story schema development on children's attention to television and memory of program content was examined in a study that involved two separate testing sessions. The expectation was that maximum effort would be given to program elements most central to comprehension of a television story and that this allocation strategy would be…

A conventional verbal ability test and a Bayesian adaptive verbal ability test were compared using a variety of psychometric criteria. Tests were administered to 550 Marine recruits, half of whom received two 30-item alternate forms of a conventional test and half of whom received two 30-item alternate forms of a Bayesian adaptive test. Both types…

This study focused on two questions concerning children's attention to verbal stimulus: How do children of different reading ability attend to repeatedly presented words? Are there differences in children's patterns of attention to words as compared to less meaningful materials? Toward the end of an academic year, 40 first-graders and 40…

The aim of this study is to investigate the effects of noise on the performance of simultaneous conference interpreters, and to carry out a detailed examination of verbal and temporal aspects of their output in relation to source language input. A further aim is to compare the relative effectiveness of simultaneous and consecutive interpretation…

This study analyzes infant distress (fussing and crying) and the resulting responses of caregivers in an infant day care nursery. Six babies (mean age 4.8 months when the study began) and their caregivers were observed in seven sequences of observations over a total span of 10 months. Each sequence of observations took place on six days during a…

Three elements to be considered in computer-assisted language instruction courseware design are: (1) environment; (2) visuals; and (3) timing. Computer-generated environments must be dynamic, flexible, challenging, and engaging. Visuals must be easily readable, uncluttered, consistently laid out. Program time should be balanced with real time.…

Examines interactions between timing accuracy and muscular parameters in children aged five who performed a visuomotor game. Five images were successively presented on a television display at precisely timed intervals for a total period of 11 seconds. Results suggest that timing accuracy is dependent on action-produced sensory cues. (RWB)