Comparison of group cohesion,class participation,and exam performance in live and online classes

Though class participation and group cohesion have shown some potential to promote student performance in conventional classrooms, their efficacy has not yet been demonstrated in an online-class setting. Group cohesion, defined as member attraction to and self-identification with a group, is thought to promote positive interdependence and the success of the group’s members. The current study sought to determine if group cohesion is significantly affected by the change of course setting from a live classroom to an asynchronous online-hybrid class in which students met in person only for course exams and otherwise interacted with each other through an online discussion board. Because peer interaction appears vital for the development of cohesion, we examined the relationship between participation in class discussion and students’ self-reported group cohesion and exam performance. With one exception, course requirements and materials were identical between the two class sections: students in the online-hybrid course completed homework assignments, whereas students in the live section were simply encouraged to do the same. Despite the advantage conferred by mandatory homework assignments, the findings heavily favored the conventional live classroom with respect to exam performance and self-reported group cohesion. Participation in class discussion was high in both class sections. The results indicated that both student performance and group cohesion were significantly lower in the hybrid classes.     

Response biases do not underlie the radial maze deficit in rats with mediodorsal thalamus lesions

Previous results indicating that radial maze performance in animals with mediodorsal thalamic lesions is deficient cannot exclude the possibility that these impairments are due to altered motor mechanisms (response biases). The present study sought to eliminate this potentially confounding variable by using a procedure which tests memory for serial position. This procedure involved experimenter-controlled arm entry (number and order) on a radial arm maze. Following this sequence, animals were presented with one previously entered arm along with an arm not yet visited on that trial. Avoidance of the previously entered arm constituted memory for the prior sequence. Thus, this task represents a form of a win-shift or nonmatching-to-sample task. Seven animals were given ibotenic acid lesions of the mediodorsal nucleus and nine others were given sham operations; 2 weeks later testing in the above procedure was conducted. Results indicated that, although control subjects could differentiate between entered and unentered arms without difficulty, animals with lesions were unable to exhibit this distinction. Much of their memory for arms previously entered in a sequence was at chance level, regardless of the placement of the tested arm in the sequence. Some tendency toward increased errors with longer sequences of arm entries was noted. This may indicate that animals with lesions were susceptible to proactive interference from previous choices. Regardless, even without the opportunity to develop or exhibit response biases, animals lesioned in the mediodorsal nucleus were unable to perform this win-shift task reliably. Thus, discrimination among maze arms is impaired after lesion of the mediodorsal nucleus and this impairment is independent of the motor response patterns which emerge during solution of a conventional radial maze task.     

Extinguishing conditioned inhibition in flavour-aversion learning: Effects of repeated testing and extinction of the excitatory element

Three conditioned inhibition experiments using an A+/AX- design are reported in which lithium-mediated excitatory conditioning occurred to distinctive environmental stimuli and inhibitory conditioning to a vinegar flavour. Increased vinegar preferences were observed (i.e., conditioned inhibition) in each experiment, and these preferences extinguished with repeated testing as well as following extinction of the excitatory element. Vinegar preferences could be reinstated through reconditioning of the extinguished excitatory stimulus. These experiments speak to the status of inhibitory responding as a “slave” process to conditioned excitation.     

Factors Influencing Military Personnel Utilizing Chaplains: A Literature Scoping Review

Journal of Religion and Health - Chaplains have been embedded in military settings for over a millennium. In recent years however, the decline in spiritual/religious (S/R) affiliation of military...