Distance education vs face-to-face classes: individual differences, course preferences and enrollment

To understand better students' preferences for enrollment in distance education over face-to-face courses, the individual difference variables of sex, age category, class level, work status, number of distance education courses taken, frequency of computing technology usage, comfort with course management software, and comfort with computing technology were examined. Analysis indicated that older students, women, and those who work full time were more likely to enroll in distance education courses. Those who had taken the most distance education courses in the past and women were more likely to express a stated preference for distance education over face-to-face classes.     

The role of syntactic obligatoriness in the production of intonational boundaries

Researchers have hypothesized that words that are highly related semantically are more likely to occur within the same intonational phrase (F. zzaq;, 1988; E. O. Selkirk, 1984). D. Watson and E. Gibson (2004) proposed that semantic closeness can be captured by using the argument/adjunct distinction, such that intonational boundaries are more likely to occur before adjuncts than before arguments. In the current experiment, the authors compared two aspects of argumenthood: semantic relatedness and obligatoriness. In a production study, speakers were more likely to place an intonational phrase boundary between a word and a dependent if the dependent was optional (e.g., after "investigation" in "The reporter's investigation [of the crash] unnerved the officials") than if the dependent was obligatory (e.g., after "investigated" in "The reporter investigated [the crash], and this unnerved the officials"). These data suggest that obligatoriness is a better predictor of intonational boundary placement than semantic closeness.     

Consequences of the serial nature of linguistic input for sentenial complexity

All other things being equal the parser favors attaching an ambiguous modifier to the most recent possible site. A plausible explanation is that locality preferences such as this arise in the service of minimizing memory costs—more distant sentential material is more difficult to reactivate than more recent material. Note that processing any sentence requires linking each new lexical item with material in the current parse. This often involves the construction of long-distance dependencies. Under a resource-limited view of language processing, lengthy integrations should induce difficulty even in unambiguous sentences. To date there has been little direct quantitative evidence in support of this perspective. This article presents 2 self-paced reading studies, which explore the hypothesis that dependency distance is a fundamental determinant of reading complexity in unambiguous constructions in English. The evidence suggests that the difficulty associated with integrating a new input item is heavily determined by the amount of lexical material intervening between the input item and the site of its target dependents. The patterns observed here are not straightforwardly accounted for within purely experience-based models of complexity. Instead, this work supports the role of a memory bottleneck in language comprehension. This constraint arises because hierarchical linguistic relations must be recovered from a linear input stream.     

Acute nicotine withdrawal symptoms and anxious responding to bodily sensations: a test of incremental predictive validity among young adult regular smokers

Although previous work has found associations between panic and smoking, little research has investigated potential mechanisms by which smoking may contribute to panic problems. The present investigation evaluated the incremental validity of acute nicotine withdrawal symptoms (elicited by an average of 2 h of nicotine deprivation) relative to negative affectivity, anxiety sensitivity, and nicotine dependence in predicting anxiety responding to 3-min voluntary hyperventilation. The sample consisted of 90 regular smokers (46 females), as defined by smoking 10 cigarettes per day for at least 1 year, recruited through the general community. Consistent with prediction, greater levels of pre-challenge nicotine withdrawal symptoms uniquely predicted post-challenge intensity of panic symptoms and anxiety relative to other established factors. Findings are discussed in the context of how regular smoking may promote panic symptomotology.     

Relative roles of spatial and intensive cues in the discrimination of spatial tactile stimuli

Two psychophysical measures of tactile sensitivity--grating-orientation (GO) and smooth-grooved (SG) discrimination--were used to determine tactile spatial acuity with and without an intermediate surface (latex glove) interposed between the contactor and the skin. Measures were made at three locations that varied in sensitivity and in density of innervation of the primary afferent fibers: the index fingerpad (fingertip), palmar surface of the proximal phalanx (fingerbase), and the thenar eminence (palm). Neurophysiological studies have suggested that the density of innervation of SAI fibers is a limiting factor in spatial acuity. In the present study, without a glove, the GO thresholds varied as a function of location. With the glove, increases in the GO thresholds were relatively uniform and modest. Without a glove, however, the SG thresholds were well below the GO thresholds, and changing the site of stimulation had little effect on the threshold. With a glove, the SG thresholds increased by 100% to more than 300% as in comparison with those in the no-glove condition. The largest increases occurred at the less sensitive locations. The results of the GO task are consistent with the view that GO is a valid measure of spatial acuity. The results of the SG task, however, are inconsistent with previous results and suggest that both spatial and intensive factors are involved in this task.     

Recency in verb phrase attachment

Four experiments investigated attachment preferences in constructions involving 3 verb phrases (VPs) followed by an attaching modifier. Readers preferred attachment to the most recent (lowest) VP site overall and preferred to attach the modifier to the middle VP over the highest VP, demonstrating a monotonic recency-based preference ordering. This pattern could not be attributed to lexical or plausibility-based preferences. The results contrast with the pattern for relative clause attachment into 3 potential noun phrase sites, where the preference ordering is nonmonotonic (e.g., E. Gibson, N. J. Pearlmutter, E. Canseco-Gonzalez, & G. Hickok, 1996), and support the multiple-constraint theory described by E. Gibson and N. J. Pearlmutter (1998), which proposes that recency/locality and a secondary factor, predicate proximity, combine with lexical, grammatical, prosodic, and contextual constraints to determine attachment preferences.     

Teaching Ethical Decision Making: Designing a Personal Value Portrait to Ignite Creativity and Promote Personal Engagement in Case Method Analysis

The case method approach to introducing ethical issues is a traditional tool for applying critical thinking skills to a specific dilemma (Beauchamp &; Childress, 2001 Beauchamp, T. L. and Childress, J. F. 2001. Principles of biomedical ethics, 5th, New York: Oxford University Press.  [Google Scholar]). It allows for personal reflection and clarification of an individual's conceptual framework for deciding what is and is not ethical behavior. However, it also affords the student distance from the story line and may, through providing a retrospective critique, prevent sufficient challenge to the student to articulate and defend personal value assessments in addressing the ethical dynamics reflected in the case. Providing teaching exercises that encourage the creation of language to form that conceptual framework and a comfort in using that language allows the student to not only identify ethical issues but also recognize and more effectively communicate the struggles with molding a personal values portrait to apply to such cases.     

Perceptual Factors in Color-Affect Arousal

Summary: Two samples of college students, one obtained in 1971 and one in 1973, were asked to draw a picture of a happily married couple. Some subjects were asked to draw the couple after two years of marriage and some after five years of marriage. The pictures were scored for the presence or absence of children as an estimate of the attitude that children are necessary for a happy marriage. A large decrease in the "presence of children" from the 1971 to 1973 sample was interpreted as indicating that fewer college students now accept the notion that children are necessary for marital happiness.     

Exploration of an adaptive training regimen that can target the secondary memory component of working memory capacity

The dual-component model contends that working memory (WM) capacity consists of two components. The first is a flexible attention component that involves the active maintenance of a limited amount of information in primary memory (PM), and the second is a controlled retrieval component that involves a cue-dependent search of secondary memory (SM) for information that has been lost from PM. Recent evidence has suggested that the adaptive WM training regimen known as “Cogmed-RM” is not optimally designed, because it only targets PM abilities, not SM abilities. The present study was conducted to investigate whether Cogmed-RM could be modified to target SM abilities by decreasing the recall accuracy threshold that defines individual ability during training. The main findings suggested that the SM component of WM capacity could be targeted by lowering the recall accuracy threshold. The present findings are important because they suggest that adaptive training regimens can be designed that selectively target specific components of WM capacity, and they raise the possibility that the potency of existing training regimens can be increased.