Professor Pinsker responds:

Letter

Professor Pinsker responds:     

Assessing Employer Satisfaction: a test of several survey techniques

Assessing employer satisfaction with the preparation their employees receive in institutions of higher education is a matter of growing importance world‐wide as students, governments and the public seek tangible evidence of educational quality through workforce competitiveness. Three techniques for surveying college and university graduates and employers were conducted over the space of three academic years for the purpose of comparing the effectiveness of these methodologies. Response rates obtained indicate that gaining permission for employer contact directly on a questionnaire mailed to graduates can be as effective as more costly phone contacts, and is more effective than two successive mailings to graduates. The results also suggest that in general employers give relatively undifferentiated positive ratings of employee characteristics unless forced by the method of questioning to differentiate among items. The study provides evidence that a mailed survey methodology for graduates and their employers can be effective if the graduate's permission is obtained on the initial questionnaire and if employers are forced by the survey instrument's format to differentiate among listed job characteristics and performance ratings.     

Structure du raisonnement deductif et apprentissage de la demonstration

Resume Le raisonnement déductif ne fonctionne pas comme une argumentation. Cependant ces deux formes de raisonnement emploient souvent les mêmes connecteurs et se traduisent par des démarches linguistiques très voisines. C'est une des raisons pour lesquelles la plupart des élèves ne parviennent pas à percevoir les exigences propres d'une démonstration en mathématique. Cet article présente une analyse cognitive de l'organisation déductive du raisonnement par opposition à son organisation argumentative. La distinction entre contenu et statut opératoire des propositions y apparaît fondamentale. Pour illustrer cette analyse nous présentons des textes de démonstration rédigés par des élèves de quatrième, sur des problèmes de géométrie, au cours d'une expérience d'enseignement organisée pour faire mettre en oeuvre cette distinction. L'analyse de ces textes et l'interprétation de l'évolution observée au cours de cette expérience conduisent à prendre en compte une seconde distinction: celle entre la valeur de vérité et la valeur épistémique des propositions. Car la découverte du fonctionnement du raisonnement déductif s'accompagne, pour les élèves, d'une prise de conscience: il change la valeur épistémique de la proposition démontrée.

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Deductive thinking does not work like argumentation. However these two kinds of reasoning use very similar linguistic forms and propositional connectives. This is one of the main reasons why most of the students do not understand the requirements of mathematical proofs. In this article we present a cognitive analysis of deductive organisation versus argumentative organisation of reasoning, and the didactical applications of this analysis. We present also proofs written by young students for geometrical problems, in the frame of an experience, the goal of which was to realize dissociation between content and operative status of propositions. The analysis of proofs written by the students requires a second distinction between truth value and epistemic value of propositions: by splitting content and operative status, students discover how deductive reasoning works and, at the same time, become aware that deductive reasoning change also the epistemic value of the proved proposition.

     

The Desire for Fame: An Extension of Uses and Gratifications Theory

Social network sites (SNSs) enable users to self-disclose to broad and anonymous audiences. Drawing on social cognitive theory (SCT) and the uses and gratifications (U&G) approach, this study investigates how reality television (RTV) cultivates desire for fame in its audience, which is operationalized as a human desire motivating nondirected self-disclosure (NDSD) online, a technique seeking fame. Results from an online survey (N = 221) show that whether watching RTV with friends interacted with time spent viewing RTV to affect desire for fame, which in turn affected the use of SNSs to pursue fame. In addition, exhibitionism, a motive of SNS use for the purpose of fame, fully mediated the relationship between desire for fame and NDSD. These results have implications for refining U&G and new media research.