开放存取期刊的质量评价研究

本文通过对开放存取期刊进行了深入、具体的分析与评价，包括开放存取期刊的影响因子、即时因子、引用影响及即时因子与影响因子排名的比较，以此进行质量评价研究。     

Special Section Introduction: Best Practices in Risk and Crisis Communication

There is a substantial gap between those people in the United States who identify as being favorable toward organ donation (~90%) and those registered as donors (~30%). A growing body of evidence suggests Department of Motor Vehicles (DMV) offices are effective sites for facilitating higher organ donor registration rates on a national scale. The goal of the current study was to determine the utility and sustainability of a message immediacy approach, which draws from theoretical concepts such as priming and cues to action. Message immediacy requires individuals be: (a) exposed to a message that prompts an action, (b) in an environment where a prescribed action or behavior can be enacted, and (c) favorable toward the promoted behavior or action. Thirty-four Michigan counties, divided into three implementation groups, received campaigns in October (Group 1), November (Group 2), and December (Group 3) of 2009. Registration rates for three to six months after campaign implementation indicate that the on-site message prompts almost doubled registration rates in DMV offices. Additionally, preliminary cost-effectiveness evidence suggests message immediacy offers a relatively inexpensive campaign strategy.     

Effects of Instructor Speech Rate on Student Affective Learning,Recall, and Perceptions of Nonverbal Immediacy,Credibility, and Clarity

Although research indicates that speech rate affects perceptions of speaker credibility as well as persuasiveness and information recall, research has failed to address how instructor speech rate affects student perceptions and learning. This study randomly assigned basic communication course students to one of three speech rate conditions (slow, moderate, fast), using a videotaped lesson by an instructor. Findings revealed significant differences for credibility, affective leaning, and nonverbal immediacy, but did not reveal significant differences for recall or clarity. Implications for instructional practice and suggestions for future research are discussed.     

Why nonverbal immediacy matters: A motivation explanation

Instructional communication behaviors have been routinely associated with student learning outcomes for the past 40 years; however, the explanations for why these relationships exist remain somewhat controversial. Specifically, the relationship between immediacy and learning outcomes continues to be disputed. This study used Self-Determination Theory to evaluate the utility of students’ need for relatedness and their intrinsic motivation to learn as sequential mediators of the teacher immediacy-student learning relationships. Results of a structural equation model supported the theory’s hypothesis, as relatedness and intrinsic motivation to learn operated in serial to mediate the immediacy-learning relationship. These results indicate Self-Determination Theory is a well-suited framework for explaining the relationship between instructors’ communicative behaviors (e.g., immediacy) and their effects on student outcomes.     

The impact of teacher immediacy and perceived caring on teacher competence and trustworthiness

This research investigated the impact of teacher caring and teacher immediacy on student perceptions of teachers' credibility. While the results of the two studies conducted indicated the presence of strong main effects for teacher caring and immediacy and strong negative effects for teacher non‐caring and nonimmediacy on the various dimensions of teacher credibility (as hypothesized), significant interaction effects were observed between caring and nonimmediacy on both dimensions of credibility studied (competence and trustworthiness). In most cases, when teacher caring was low, whether the teacher was in the immediate or nonimmediate condition made no significant difference—both produced negative perceptions of teacher credibility. In contrast, when teacher caring was high, teacher nonimmediacy significantly lowered perceived credibility. Probing of the interaction results suggested that high verbal caring tends to soften the negative impact of teacher nonimmediacy. The results of these studies demonstrate that teachers should maintain high verbal caring to preserve their credibility in the classroom. Implications for teacher training and suggestions for future research are discussed.     

The impact of teacher immediacy on students' motivation: Is it the same for all students?

This study investigated the impact of teachers’ use of immediacy behaviors on students’ reported motivation to study over the course of a semester. Students’ state and trait motivation to study for a class was measured at three points during a semester. Reports of teachers’ use of verbal and nonverbal immediacy were collected at two points in a semester. It was hypothesized that not all students would respond similarly to a teacher low in immediacy. Support was found for this hypothesis. Students beginning the semester with either low or moderate state motivation to study were found to have increased levels of motivation later in the semester when exposed to a highly immediate teacher. Students beginning the semester with high motivation maintained high motivation regardless of the level of immediacy they reported their teacher of having.     

Superior–Subordinate Communication in the Workplace: Verbal Aggression,Nonverbal Immediacy,and Their Joint Effects on Perceived Superior Credibility

This study examined the joint effects of a superior’s verbally aggressive behaviors and nonverbal immediacy behaviors on a subordinate’s perceptions of a superior’s credibility. Participants (n = 415) from intact classes were randomly assigned into one of the four experiment conditions simulated by four video segments: use of nonverbal immediacy and verbal aggression, nonuse of nonverbal immediacy and use of verbal aggression, use of nonverbal immediacy and nonuse of verbal aggression, and nonuse of nonverbal immediacy and verbal aggression. The findings indicate that superiors who do not use verbally aggressive messages and who are nonverbally immediate were perceived with a higher level of competence, trustworthiness, and caring than superiors who use verbally aggressive messages and who are not nonverbally immediate. In addition, superiors who use verbally aggressive messages and who are nonverbally immediate were perceived with the lowest level of perceived competence as compared to superiors in the other three conditions.     

Refinement of the Classroom Citizenship Behavior Scale

In its original presentation, scores on two of the three subscales of the Classroom Citizenship Behavior scale were highly reliable. Scores on the subscale measuring the third dimension of classroom citizenship behavior, Courtesy, had poor reliability. We inductively derived additional items for the Courtesy subscale and tested structure and reliability of the revised scale. Exploratory factor analysis indicated that the scale readily divided into three factors of six items each, consistent with the proposed model. Furthermore, the subscale scores associated with these factors demonstrated high reliability. Next, two additional communication classes completed the revised scale and confirmatory factor analyses were run on the new version of the three-factor scale. Fit indices were good. The revised Classroom Citizenship Behaviors scale provides a stronger tool for investigating student behaviors that contribute to the effective functioning of the classroom environment.     

Instructor Clarity,Humor, Immediacy,and Student Learning: Replication and Extension

This study replicates and extends three widely cited instructional communication research studies regarding instructor clarity, humor, immediacy, and students’ learning: Richmond, Gorham, and McCroskey (1987), Wanzer and Frymier (1999), and Chesebro and McCroskey (2001). Students across four diverse institutions of higher education (N = 1,109) completed survey measures. Replication results suggest that findings from the original studies (clarity, humor, immediacy, and student learning) persist, and extension results, exploring verbal immediacy and perceived immediacy, reveal statistically significant correlations with the original studies’ variables. However, results of the replication and extension reveal measurement validity uncertainties that require further investigation.     

Editorial Welcome

The present study was designed to test and compare the four existing immediacy-learning models, namely the learning model, the motivation model, the affective learning model, and the integrating model, in US, Chinese, German, and Japanese college classrooms. Altogether 695 college students from the four cultures completed the questionnaire, and the results from structural equation modeling indicate that the integrating model produces the best fit to the four-cultural data. Teacher immediacy has both a direct path and indirect paths mediated through affective learning and motivation to cognitive learning. The findings are consistent with both the relevant theories pertinent to immediacy, cognition, and behavior, and previous empirical findings regarding the immediacy-learning relationship.