Audience‐perceived anxiety patterns of public speakers

Gray's neurological theory of anxiety (1982, 1990; Gray & McNaughton, 2000) predicts that state anxiety will decrease with continuous exposure to a fear arousing stimulus. Previous studies of psychological and physiological state anxiety patterns during public speaking have reported a pattern of progressively decreasing anxiety levels consistent with this phenomenon, known as habituation. In the current report, the extent to which the state anxiety behaviors of speakers conform to the habituation pattern is examined. In the first of two studies, 30 novice speakers presented informative speeches to audiences of 18 to 20 fellow students. These speeches were videotaped and replayed in their entirety for observers (N=30) who rated the severity of each performer's speech anxiety behaviors. In the second study, each videotaped presentation was divided into one‐minute segments and presented in random order to a new set of observers (N=25). Procedures in the second study were designed to control for rater expectations that state anxiety would decline over time. Overall, behavioral measures of public speaking state anxiety displayed a continually declining pattern associated with habituation.     

Empirical validation of a modern genetics progression web for college biology students

ABSTRACT

Research in learning progressions (LPs) has been essential towards building understanding of how students’ ideas change over time. There has been little work, however, into how ideas between separate but related constructs within a multi-faceted LP relate. The purpose of this paper is to elaborate on the idea of progression webs to model connections within and between related constructs simultaneously, and to explain and demonstrate the efficacy of path analysis towards validating a hypothesised progression web for understanding of modern genetics. Specifically, we evaluate strength of evidence for a progression web based upon multiple related constructs within a multi-faceted LP describing undergraduate biology students’ understanding of genetics. We then utilise the progression web to generalise theory around how undergraduate students understand relationships between related genetics concepts, and how they use simpler concepts to scaffold those which are more complex.     

Beyond Punnett Squares: Student Word Association and Explanations of Phenotypic Variation through an Integrative Quantitative Genetics Unit Investigating Anthocyanin Inheritance and Expression in Brassica rapa Fast Plants

Genetics instruction in introductory biology is often confined to Mendelian genetics and avoids the complexities of variation in quantitative traits. Given the driving question “What determines variation in phenotype (Pv)? (Pv=Genotypic variation Gv + environmental variation Ev),” we developed a 4-wk unit for an inquiry-based laboratory course focused on the inheritance and expression of a quantitative trait in varying environments. We utilized Brassica rapa Fast Plants as a model organism to study variation in the phenotype anthocyanin pigment intensity. As an initial curriculum assessment, we used free word association to examine students’ cognitive structures before and after the unit and explanations in students’ final research posters with particular focus on variation (Pv = Gv + Ev). Comparison of pre- and postunit word frequency revealed a shift in words and a pattern of co-occurring concepts indicative of change in cognitive structure, with particular focus on “variation” as a proposed threshold concept and primary goal for students’ explanations. Given review of 53 posters, we found ∼50% of students capable of intermediate to high-level explanations combining both Gv and Ev influence on expression of anthocyanin intensity (Pv). While far from “plug and play,” this conceptually rich, inquiry-based unit holds promise for effective integration of quantitative and Mendelian genetics.     

Protective Factors as Predictors of Suicide Risk Among Graduate Students

The purpose of this study was to examine protective factors as predictors of suicide risk among graduate students (n = 413) at a large midwestern university. Using binary logistic regression, the authors assigned students to risk classifications (i.e., nonrisk group or suicide risk group). Results indicated emotional stability as the strongest predictor for participants’ placement into the nonrisk or suicide risk group. The authors discuss implications for counselors and directors of college counseling centers, as well as directions for future research.     

Operation Clothes Moth: Where Preventive Conservation and Public Engagement Meet

ABSTRACT

Clothesmoths catch data fromhistoric properties confirms numbers are on the increase in England. Citizen science research was conducted using Tineola bisselliella pheromone traps handed out from English Heritage properties from April to September 2017. One hundred and ninety-two participants recorded moth counts from residential properties in 42 counties in England. Using an average number of moths per trap, geographical spread indicates higher numbers in warmer southern counties of England. Pale-backed clothes moths Monopis crocicapitella were caught in significant numbers suggesting a new insect pest risk for historic house collections. Threshold numbers for clothes moths that could indicate an active infestation are proposed. Residential flats appear to be more vulnerable to clothes moth activity possibly related to the shared walls or spaces. The research was launched using a public relations campaign called ‘Operation Clothes Moth’ which generated major media activity across the internet, radio, television, newspapers and magazines. Public awareness of insect pest management, preventive conservation and the work of conservators and conservation scientists was significantly increased.     

“We've no problem inheriting that knowledge on to other people”: Exploring the characteristics of motivation for attending a participatory archives event

While cultural heritage institutions increasingly use participatory events to draw in new audiences, little is known about what motivates participants to attend these events. Twenty semi-structured interviews with 29 individuals who attended one of three Inspiring Ireland 1916 public collection days were conducted in order to explore participants' motivations for attending the event and perceived benefits. A participatory archives event, the collection days invited members of the public to bring relevant possessions to be digitally captured and have their story of the item recorded. The stories and items were then made available on the Inspiring Ireland website commemorating the centenary of the 1916 Easter Rising in Dublin, Ireland. While participatory initiatives have enjoyed increasing attention in the archives literature of late, much of this work attempts to define terms or model behaviours from the perspective of the archivists. Little existing work attempts to explore the motivations of individuals to participate in these events using empirical methods. Findings suggest motivations for attending a collection day can be characterised across four characteristics that can be categorised as aligning with individual or communal perception of benefits: A) to share their story and provide evidence in order to influence the contemporary narrative of the Rising (individual benefit), B) to relieve the burdens of preservation and remembering (individual benefit), C) to find out more about the object or context of the object (individual benefit), and D) to share their object via the open access features of the Inspiring Ireland website as a way to fulfil a civic duty and support a public good (communal benefit). These findings contradict existing literature about the purpose for engaging in participatory initiatives (to pluralise collections) and assumptions about why individuals are motivated to engage (altruistic, intrinsic motivation). Further exploration of the concept of communal versus individual perceived benefit could influence the ways in which cultural heritage institutions justify their role in society. The concept of an archival user is evolving. Understanding how participation can be considered use will help institutions develop a more holistic understanding of use in contemporary settings.     

More than meets the eye: Curricular and Programmatic Effects on Student Learning

This article reports the effects of program characteristics and faculty activities on students’ experiences and, ultimately, the development of students’ analytical and group skills. Data come from nationally representative samples of 4,330 seniors, 1,243 faculty members, and 147 engineering program chairs on 40 campuses nationwide. Findings indicate that program characteristics and faculty behaviors and values have significant, if relatively small and largely indirect, effects on student learning by encouraging (or discouraging) certain kinds of student experiences, which, in turn, influence student learning. The results point to a need for more complex designs than are typically adopted in most learning outcomes studies. Paper presented at the meeting of the Association for Institutional Research, May 16, 2006, Chicago, IL.     

Media Framing of Capital Punishment and Its Impact on Individuals' Cognitive Responses

It is well known that mass media have the ability to frame a sociopolitical issue in specific ways, which can have considerable impact on the public's thoughts and perceptions regarding the issue. Through analyzing coverage of capital punishment in the New York Times since 1960 and then conducting an experiment in which we assessed individual-level responses to differently framed news stories, we show (a) the dramatic emergence of a new “innocence frame” within the past 10 years that accentuates imperfections in the justice system, and (b) the much greater impact of this frame on individuals' thoughts—in particular on those who favor the death penalty—when compared to the traditional morality-based frame. We suggest that the latter finding can be explained because individuals tend to resist changing their interpretations of issues based on arguments that contradict their core moral or religious beliefs; however, they seem quite receptive to new information along dimensions that they previously had not considered. This research also implies that U.S. trends toward lower sentencing rates and eventual public opinion changes are likely to continue as long as media and public discussion remains focused on questions regarding flaws in the justice system.