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Third Study (third + study)
Selected AbstractsTaxonomy and structure of Croatian personality-descriptive adjectivesEUROPEAN JOURNAL OF PERSONALITY, Issue 2 2005Boris Mla This paper describes the development of a comprehensive taxonomy of Croatian personality-descriptive terms, organized in three studies. In the first study three judges searched through a standard dictionary of the Croatian language for person-descriptive terms. In the second study, personality-descriptive adjectives were classified by seven judges into 13 different categories of descriptors. In the third study, the 483 adjectives that the majority of judges in the second study classified as dispositions were rated for self-descriptions by 515 University of Zagreb students and for peer-descriptions by 513 students' best acquaintances. Self- and peer ratings were factor analysed separately and the Croatian emic lexical factors from both data sets were interpreted to be similar to the Big-Five factors: Agreeableness, Extraversion, Conscientiousness, Intellect, and Emotional Stability. The inspection of factor content of the Croatian emic factors and their relation to imported Big-Five measures revealed high correspondences for all five Croatian factors although the relation between the Croatian and the imported factors of Emotional Stability and Agreeableness was somewhat more complex. Copyright © 2004 John Wiley & Sons, Ltd. [source] Effects of need for closure on creativity in small group interactionsEUROPEAN JOURNAL OF PERSONALITY, Issue 4 2004Antonio Chirumbolo Three experiments investigated the consequences of the epistemic motivation toward closure on the emergence of creative interactions in small groups. In the first study, need for closure was manipulated via time pressure. Results showed that in groups under high need for closure (i.e. under time pressure) the percentage of creative acts during group discussion was reduced. The second study replicated this result using an individual differences operationalization of the need for closure. In the third study, groups composed of individuals high (versus low) in need for closure performed less creatively, and exhibited less ideational fluidity during group interaction. Moreover, it was demonstrated that conformity pressure mediates the negative relationship between dispositional need for closure and group creativity. Copyright © 2004 John Wiley & Sons, Ltd. [source] Perceived legitimacy of intergroup status differences: its prediction by relative ingroup prototypicalityEUROPEAN JOURNAL OF SOCIAL PSYCHOLOGY, Issue 4 2002Ulrike Weber Research demonstrates that the perceived legitimacy of intergroup status differences has profound effects on intergroup attitudes, emotions and behavior. However, there has only been little intergroup research that predicts the perception of legitimacy. We hypothesize that the perception of legitimate or illegitime status relations depends upon the perceived relative prototypicality of the ingroup for the inclusive category. Since the prototype of the inclusive category provides a normative comparison standard for subgroup evaluation, similarity to this standard (i.e. prototypicality) should be positively evaluated and used to justify high status. A first study in a natural intergroup context (N,=,67) offered correlational data in support of the predicted relationship. The second study (N,=,60), using Germans as ingroup with Poles as outgroup and Europe as inclusive category, demonstrated that the link between prototypicality and legitimacy is contingent upon the valence of the inclusive category. In order to elucidate the causal direction, the third study manipulated relative prototypicality in an artificial intergroup context (N,=,94) and introduced status as a moderator variable. Overall, we found strong support for the hypothesis that legitimacy is related to prototypicality and that this relation is moderated by ingroup status and valence of the inclusive category. Copyright © 2002 John Wiley & Sons, Ltd. [source] A comparative study on the effects of naltrexone and loratadine on uremic pruritusEXPERIMENTAL DERMATOLOGY, Issue 9 2004E. Legroux-Crespel Two recent studies have provided opposite results on the efficacy of naltrexone on uremic pruritus. We have performed a third study. We compared efficacy and tolerance of naltrexone and loratadine on uremic pruritus. Among 296 hemodialysed patients, 65 suffered from uremic pruritus. 52 patients participated in the study. Patients were treated for 2 weeks with naltrexone (50 mg/day; 26 patients) or loratadine (10 mg/day; 26 patients), after a washout of 48 h. Pruritus intensity was scored by a visual analog scale (VAS). Adverse events were carefully searched. The two groups were statistically equivalent. There was no significant difference in the mean VAS scores after treatment, but naltrexone allowed a dramatic decrease of VAS sores (, > 3/10) in seven patients. Adverse events (mainly nausea and sleep disturbances) were observed in 10 of 26 patients. We could notice that 22% of hemodialysed patients suffered from uremic pruritus. Naltrexone was effective only in a subset of patients. Adverse events were very frequent. The differences of efficacy and tolerance between patients might be due to metabolism. Naltrexone might be considered as a second-line treatment. [source] Changing Research Perspectives on the Management of Higher Education: Can Research Permeate the Activities of Manager-Academics?HIGHER EDUCATION QUARTERLY, Issue 3 2006Rosemary Deem The paper considers whether, and if so how, research evidence can permeate the world of higher education (HE) management in publicly funded institutions. The paper explores the author's experience of two recent research projects (1998,2000 and 2004) on aspects of managing UK HE institutions and issues arising from the preparation of the HE element of a third study of leadership and public service change agendas in education and health during 2004. Despite the topicality in education and other public services of debates about evidence-based practice, there is little indication that this debate has permeated HE management qua management. The paper utilises Bourdieu's work on academics and social and cultural capital to explore why manager-academics may resist taking the findings of research seriously in relation to their own work. It is suggested that, where there is reluctance to learn from research, this may reflect the changing nature of HE, the status of HE research as an academic field and form of academic capital and the relative paucity until recently of training in management for most UK manager-academics. [source] Behavioral Adaptation, Confidence, and Heuristic-Based Explanations of the Probing EffectHUMAN COMMUNICATION RESEARCH, Issue 4 2001Timothy R. Levine Researchers have found that asking probing questions of message sources does not enhance deception detection accuracy. Probing does, however, increase recipient and observer perceptions of source honesty, a finding we label the probing effect. This project examined 3 potential explanations for the probing effect: behavioral adaptation, confidence bias, and a probing heuristic. In Study 1, respondents (N = 337) viewed videotaped interviews in which probes were present or not present, and in which message source behaviors were controlled. Inconsistent with the behavioral adaptation explanation, respondents perceived probed sources as more honest than nonprobed sources, despite the fact that source behaviors were constant across conditions. The data also were inconsistent with the confidence bias explanation. Studies 2 and 3 investigated the probing heuristic explanation. The data from Study 2 (N = 136) were ambiguous, but the results of third study (N = 143) were consistent with the heuristic processing explanation of the probing effect. [source] Assessing the merits and faults of holistic and disaggregated judgmentsJOURNAL OF BEHAVIORAL DECISION MAKING, Issue 3 2010Hal R. Arkes Abstract Three studies explored both the advantages of and subjects' preferences for a disaggregated judgment procedure and a holistic one. The task in our first two studies consisted of evaluating colleges; the third study asked participants to evaluate job applicants. Holistic ratings consisted of providing an overall evaluation while considering all of the characteristics of the evaluation objects; disaggregated ratings consisted of evaluating each cue independently. Participants also made paired comparisons of the evaluation objects. We constructed preference orders for the disaggregated method by aggregating these ratings (unweighted or weighted characteristics). To compare the holistic, disaggregated, and weighted-disaggregated method we regressed the four cues on the participant's holistic rating, on the linearly aggregated disaggregated ratings, and on the average weighted disaggregated rating, using the participant's "importance points" for each cue as weights. Both types of combined disaggregated ratings related more closely to the cues in terms of proportion of variance accounted for in Experiments 1 and 2. In addition, the disaggregated ratings were more closely related to the paired-comparison orderings, but Experiment 2 showed that this was true for a small set (10) but not a large set (60) of evaluation objects. Experiment 3 tested the "gamesmanship" hypothesis: People prefer holistic ratings because it is easier to incorporate illegitimate but appealing criteria into one's judgment. The results suggested that the disaggregated procedure generally produced sharper distinctions between the most relevant and least relevant cues. Participants in all three of these studies preferred the holistic ratings despite their statistical inferiority. Copyright © 2009 John Wiley & Sons, Ltd. [source] To buy or to sell: cultural differences in stock market decisions based on price trendsJOURNAL OF BEHAVIORAL DECISION MAKING, Issue 4 2008Li-Jun Ji Abstract Four studies compared the stock market decisions of Canadians and Chinese. In two studies using simple stock market trends, compared with Chinese, Canadians were more willing to sell and less willing to buy falling stock. But when the stock price was rising, the opposite occurred: Canadians were more willing to buy and less willing to sell. A third study showed that for complex stock price trends, Canadians were strongly influenced by the most recent price trends: they tended to predict that recent trends would continue and made selling decisions without considering the rest of the trend patterns; whereas the Chinese made reversal predictions for the dominant trends and made decisions that took both recent and early trends into consideration. Study 4 replicated the finding with experienced individual investors. These findings are consistent with the previous literature on different lay theories of change held by Chinese and North Americans. Copyright © 2008 John Wiley & Sons, Ltd. [source] Food for thought: the effect of counterfactual thinking on the use of nutrition informationJOURNAL OF CONSUMER BEHAVIOUR, Issue 3 2010Khaled Aboulnasr In three experiments, we examine the efficacy of counterfactual thinking (CFT) as a strategy to enhance consumers' motivation to process and use nutrition information on food packages. In the first study, we test whether CFT leads to greater motivation to process nutrition label information in the process of forming product attitudes. We also test whether motivation mediates the relationship between CFT and the influence of the nutrition label in product evaluation. In a second study, we test the effect of upward versus downward CFT on motivation. We also examine whether nutrition information on food packages moderates the relationship between CFT and product attitudes. In a third study, we examined the duration of the motivational effect of CFT. Results from the three studies support the role of CFT as a mechanism that enhances consumers' motivation to elaborate on and use nutrition information to form product attitudes. Copyright © 2010 John Wiley & Sons, Ltd. [source] Naming speed and word familiarity as confounding factors in decodingJOURNAL OF RESEARCH IN READING, Issue 2 2002R. Malatesha Joshi The present investigation has three aims: (1) to establish a suitable composite index which combines speed and accuracy in the measurement of decoding skill; (2) to examine whether speed acts as a confounding factor in the measurement of decoding ability; and (3) to see whether familiarity with the word, as indicated by the ability to pronounce it, or lack of it acts as a confounding factor in the assessment of spelling skills. Three studies were conducted to fulfill these aims. In the first study, 33 children from Grade 2 were asked to name a list of 40 letters of the alphabet as quickly and as accurately as possible. A combined index of speed and accuracy was computed from these two sets of data using two formulas, which were based on the ,z' score and the mean variance score. A Pearson product-moment correlation coefficient of 0.94 was obtained between the results of the two formulas indicating that the two formulas yield almost identical results. In the second study, 37 fifth-graders were administered the word-attack sub-test of Woodcock Language Proficiency Battery. When the speed and accuracy composite index, based on the ,z formula' was applied to the word-attack scores, it was found that three children were slow decoders even though their scores were within the normal range. In the third study, 39 children from Grade 3 and 40 children from Grade 5 were asked to read aloud a list of words and then these words were administered as a spelling test. Subsequently, their spelling ability was assessed by computing the number of words they could both read and spell correctly. When familiarity of words was included as a factor in assessing spelling ability, five children in Grade 3 and three children in Grade 5 were found to be misclassified as poor spellers. This indicates that including word-naming speed and word familiarity (i.e. ability to pronounce) produce different metrics than when they are not. Inclusion of speed and familiarity factors in assessment can be helpful in avoiding false negatives and false positives. [source] A COMPARISON OF THE EFFECTIVENESS OF HEDONIC SCALES AND END-ANCHOR COMPRESSION EFFECTSJOURNAL OF SENSORY STUDIES, Issue 2010HARRY T. LAWLESS ABSTRACT Three experiments were conducted to compare the relative performance of hedonic scaling methods, including the labeled affective magnitude (LAM) scale. In the first study, three versions of the LAM were used to evaluate 20 phrases that described diverse sensory experiences. One scale was anchored to "greatest imaginable like/dislike for any experience" and another used the "greatest imaginable like" phrase of the LAM but with the interior phrases repositioned relative to "any experience." The scale anchored to "any experience" showed a smaller range of scale usage and lower statistical differentiation, relative to the LAM scale, with the repositioned scale intermediate. Two further experiments compared the LAM to the nine-point hedonic scale, an 11-point category scale using the LAM phrases, and to a three-label line scale, a simplified version of the LAM with only the end phrases and the neutral center-point phrase. All scales showed similar differentiation of juices in the second study and sensory experience phrases in the third. A modest advantage for the LAM scale in the second experiment did not extend to the third study. Researchers should be careful in the choice of high end anchors for hedonic scales, as a compressed range of scale usage may result in lower product differentiation. PRACTICAL APPLICATIONS Hedonic scales for food acceptability are widely used in new product development for consumer testing and in food preference surveys. A desired goal of efficient sensory evaluation testing is the ability of tests to differentiate samples on the basis of scale data, in this case scales commonly used for food acceptability and preference testing. Scales which are able to differentiate products more effectively are less likely to lead to Type II error in experimentation, in which true differences between products are not detected. Such errors can lead to lost opportunities for product improvements or to enhanced chances for taking undetected risks in the case of false parity conclusions. [source] Eye tracking and online search: Lessons learned and challenges aheadJOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 7 2008Lori Lorigo This article surveys the use of eye tracking in investigations of online search. Three eye tracking experiments that we undertook are discussed and compared to additional work in this area, revealing recurring behaviors and trends. The first two studies are described in greater detail in Granka, Joachims, & Gay (2004), Lorigo et al. (2006), and Pan et al. (2007), and the third study is described for the first time in this article. These studies reveal how users view the ranked results on a search engine results page (SERP), the relationship between the search result abstracts viewed and those clicked on, and whether gender, search task, or search engine influence these behaviors. In addition, we discuss a key challenge that arose in all three studies that applies to the use of eye tracking in studying online behaviors which is due to the limited support for analyzing scanpaths, or sequences of eye fixations. To meet this challenge, we present a preliminary approach that involves a graphical visualization to compare a path with a group of paths. We conclude by summarizing our findings and discussing future work in further understanding online search behavior with the help of eye tracking. [source] Comparison of gastric volumes in response to isocaloric liquid and mixed meals in humansNEUROGASTROENTEROLOGY & MOTILITY, Issue 5 2004H. De Schepper Abstract Aims:, To compare gastric volume responses to ingestion of isocaloric liquid or mixed (solid,liquid) meals and document the intra- and interindividual reproducibility of gastric volume measurement using single photon emission computed tomography (SPECT) imaging after i.v. 99mTc-pertechnetate. Methods:, Eight healthy volunteers performed two studies at least 9 months apart. Gastric volumes were measured after a 317 kcal liquid nutrient meal. Within 2 weeks of the second liquid meal study, participants performed a third study, ingesting an isocaloric mixed meal. The order of the mixed and second liquid meals was randomized; Bland,Altman plot displayed data on repeated studies with liquid meal and paired t -test compared gastric volumes after mixed or liquid isocaloric meals. Results:, Fasting and postprandial gastric volumes associated with the two liquid meals were not significantly different; inter- and intra-individual coefficients of variation were 13 and 13.8%. In response to the mixed meal, there was a lower absolute postprandial volume and lower change in gastric volume over fasting volume compared with the response to the liquid meal (P = 0.0001). Conclusion:, The SPECT measurement of gastric volumes in response to a nutrient liquid meal is reproducible. The magnitude of the volume response is greater after the liquid meal compared with the isocaloric mixed meal. [source] Panagrellus redivivus (Linné) as a live food organism in the early rearing of the catfish Synodontis petricola (Matthes)AQUACULTURE RESEARCH, Issue 6 2007Jürgen Sautter Abstract The nematode Panagrellus redivivus (Linné) has been suggested as a source of live food in the rearing of larval fish and shrimp species. This study tested the use of P. redivivus in the early rearing of the bottom-feeding catfish Synodontis petricola (Matthes). A comparison of feeding rates of 5000,10 000 nematodes larva,1 day,1 showed that fish receiving 5000 nematodes larva,1 day,1 grew faster than those fed a dry diet, but slower than treatments fed 200 and 600 Artemia larva,1 day,1. Enrichment of nematodes with SuperSelco® improved fish growth relative to a non-enriched control treatment, with both treatments receiving 5000 nematodes larva,1 day,1. In the first two trials, feeding commenced 2 days after hatching. In the third study, fish were fed nematodes 6 days after hatching and there was no difference in growth between Artemia -fed fish (600 Artemia larva,1 day,1) and fish fed 5000 nematodes larva,1 day,1. Thus, it is suggested to feed S. petricola at a nematode density of at least 10 000nematodes larva,1 day,1 in order to achieve growth comparable to that of fish fed Artemia, or, alternatively, to feed 5000 nematodes larva,1 day,1 to improve growth relative to that achieved with a dry diet. Furthermore, nematodes may be enriched with essential fatty acids to improve the growth of S. petricola larvae. [source] Variation, Natural Selection, and Information Content , A SimulationCHEMISTRY & BIODIVERSITY, Issue 10 2007Bernard Testa Abstract In Neo-Darwinism, variation and natural selection are the two evolutionary mechanisms that propel biological evolution. Variation implies changes in the gene pool of a population, enlarging the genetic variability from which natural selection can choose. But in the absence of natural selection, variation causes dissipation and randomization. Natural selection, in contrast, constrains this variability by decreasing the survival and fertility of the less-adapted organisms. The objective of this study is to propose a highly simplified simulation of variation and natural selection, and to relate the observed evolutionary changes in a population to its information content. The model involves an imaginary population of individuals. A quantifiable character allows the individuals to be categorized into bins. The distribution of bins (a histogram) was assumed to be Gaussian. The content of each bin was calculated after one to twelve cycles, each cycle spanning N generations (N being undefined). In a first study, selection was simulated in the absence of variation. This was modeled by assuming a differential fertility factor F that increased linearly from the lower bins (F<1.00) to the higher bins (F>1.00). The fertility factor was applied as a multiplication factor during each cycle. Several ranges of fertility were investigated. The resulting histograms became skewed to the right. In a second study, variation was simulated in the absence of selection. This was modeled by assuming that during each cycle each bin lost a fixed percentage of its content (variation factor Y) to its two adjacent bins. The resulting histograms became broader and flatter, while retaining their bilateral symmetry. Different values of Y were monitored. In a third study, various values of F and Y were combined. Our model allows the straightforward application of Shannon's equation and the calculation of a Shannon -entropy (SE) values for each histogram. Natural selection was, thus, shown to result in a progressive decrease in SE as a function of F. In other words, natural selection, when acting alone, progressively increased the information content of the population. In contrast, variation resulted in a progressive increase in SE as a function of Y. In other words, variation acting alone progressively decreased the information content of a population. When both factors, F and Y, were applied simultaneously, their relative weight determined the progressive change in SE. [source] | ||||||||||||||||||||||