What’s in a Name: Differential labelling of plant and animal photographs in two nationally syndicated elementary science textbook series

This study investigated plant and animal photographs in elementary science textbooks to discern whether there were disparities in the number of plant and animal photographs or in how those photographs were labelled. We examined the Life Science sections of two nationally syndicated (USA) textbook series. For each text, we identified the photographs with plant and/or animal content and evaluated them for two features: (1) the subject of the photograph, and (2) the specificity of the label (name) provided. We found that photographs with animal subjects were more numerous than those with plant subjects; they also represented a greater diversity of animals and had a higher instance of repetition than did plant photographs. We also found a significant naming disparity: animal photographs were three times more likely to be provided with a specific label (common name) than were plant photographs. Not only were plant photographs less likely to be provided with a specific name for the plant (e.g. orchid or dandelion), but also they were commonly identified only by the name for a plant part (such as flower or leaf) or life‐form (e.g. tree or shrub). To address the disparity revealed by this study, and to encourage student interest in and knowledge about plants, we recommend that educators go beyond textbooks to expose students to a diversity of named plants, and present plants as distinct organisms rather than as a collection of parts.     

A Note on the Correction for Chance Success

A questionnaire was filled out by 108 graduates of a B.A. program in psychology. The subjects provided biographical data and information about credits in psychology, GPA, fields of interest, reasons for majoring in psychology, psychology-related employment during undergraduate study, plans for graduate study, occupational use of psychology after graduation, occupational and/or personal value of the B.A. program, value of faculty help and advisement, and outstanding characteristics of helpful faculty. Analyses of the data led to 11 conclusions, some of which confirm the findings of a previous study and others of which provide new information about the uniform as well as differential effects of the undergraduate curriculum.     

Amateur values in pageantry

This essay argues for an enlarged conceptualization of deception. A multidimensional scaling of similarity judgments of forty‐six deception‐related terms identified a number of aspects underlying the construct. They included evaluation, detectability, and premeditation. The elicited terms were subjected to a hierarchical cluster analysis, which revealed six families of deception: fictions, playings, lies, crimes, masks, and unlies. Implications of these results were explored.     

Creating Persuasive Messages Advocating Organ Donation

Most people state that they would be willing to be organ donors, however only a small percentage of the population has actually signed an organ donor card. These studies focused on persuasive messages that encourage people to sign organ donor cards. In the first study, people reported their attitudes and knowledge involving organ donation. Results indicated that donor card signing was related to overall knowledge about donation. When only considering those people with positive attitudes toward organ donation, their overall knowledge about donation explained their willingness to sign organ donor cards. In the second study, people read a message involving organ donation before they were asked to sign an organ donor card. The content of the message (i.e., narrative vs. statistics) and the affect of the message (i.e., humorous vs. sad) were manipulated. Results indicated that narrative messages were more effective than statistical messages. Additionally, humorous messages were more effective than sad messages.     

The Crux of Crucial Experiments: Duhem's Problems and Inference to the Best Explanation

Going back at least to Duhem, there is a tradition of thinkingthat crucial experiments are impossible in science. I analyseDuhem's arguments and show that they are based on the excessivelystrong assumption that only deductive reasoning is permissiblein experimental science. This opens the possibility that someprinciple of inductive inference could provide a sufficientreason for preferring one among a group of hypotheses on thebasis of an appropriately controlled experiment. To be sure,there are analogues to Duhem's problems that pertain to inductiveinference. Using a famous experiment from the history of molecularbiology as an example, I show that an experimentalist versionof inference to the best explanation (IBE) does a better jobin handling these problems than other accounts of scientificinference. Furthermore, I introduce a concept of experimentalmechanism and show that it can guide inferences from data withinan IBE-based framework for induction.

1. Introduction
2. Duhem onthe Logic of Crucial Experiments
3. ‘The Most BeautifulExperiment in Biology’
4. Why Not Simple Elimination?
5. SevereTesting
6. An Experimentalist Version of IBE

   6.1 Physiologicaland experimentalmechanisms

   6.2 Explaining the data

   6.3IBE and the problemof untested auxiliaries

   6.4 IBE-turtlesall the way down

7. Van Fraassen's ‘Bad Lot’ Argument
8. IBE and Bayesianism
9. Conclusions

     

International research orientation of Swiss universities: self-regulated or politically imposed?

International openness is essential to science in small modern countries. The modernization of Swiss science and economy in the nineteenth century was promoted largely by foreigners: newly founded Swiss universities were staffed to a large extent by foreign professors, but students also came from abroad. Up to the middle of this century, the development of Swiss universities was marked by distinct successive phases of inviting in or shutting out international influence, depending mainly on changes in the political context. The international landscape of knowledge and science since the 1950s has undergone dynamic change. University structures were installed as a reaction to this dynamism. Patterns of international research orientation emerging in different universities and in the disciplinaryfields of business administration, chemistry and history are discussedin a comparative perspective.