Commentary on "Quantifying the value of human life

...In his article, "Quantifying the value of human life for cost accounting of safeguards," L. Eugene Arnold proposes a cost-benefit analysis to address three allocation issues concerning the very expensive program of blood monitoring proposed by Sandoz at the time it placed Clozaril...on the American market....It is important to realize that the use of seemingly value-free procedures to arrive at answers to ethically complex questions does not eliminate the values that underlie the choice of variables to be analyzed. The analyses employed by the author to three ethical questions illustrate this point very well....     

Like a bee on a windowpane: Heyting's reflections on solipsism

This paper presents the content of the unpublished notes that the Dutch mathematician Arend Heyting wrote in different periods of his life on solipsism and that are preserved in Heyting's archive at the University of Amsterdam. Most of the notes are quoted here and translated into English. Their study shows the originality of Heyting's reflections on a subject that was typical of his master, L. E. J. Brouwer, the father of intuitionism.     

A solution-oriented approach to conflict resolution in a work system

The growing involvement of counsellors in organisational development is addressed by describing the application of a solution-oriented family therapy approach to conflict resolution in a work system. An account of the intervention outlines the system's storying of the problem, the development of new meanings and the identification of solutions. Key concepts in this post-modern approach are linked with the practices employed.     

The questions lay interviewers ask

Two studies were conducted to determine the kinds of questions people formulate for testing a hypothesis about another's personality. One group of subjects tested the hypothesis that the interviewee was an extrovert; another group tested the hypothesis that the interviewee was an introvert. Still another group was not provided with a hypothesis; instead, this group was asked to discriminate between an extroverted and an introverted interviewee. All subjects were free to formulate any kind of questions they wished. Analysis of the content of the questions performed by independent judges revealed that the great majority of the questions formulated by all of the groups either presented a choice between extroverted and introverted features or were open-ended. The percentage of questions about features that were consistent with the hypothesis was not significantly greater than the percentage of questions about features that were inconsistent with the hypothesis. Furthermore, in all of the groups there were virtually no biased questions–questions that already assume that the hypothesis is true. Finally, the questions asked by subjects who entertained either the extrovert hypothesis or the introvert hypothesis were as diagnostic (as rated by independent judges) as were the questions asked by subjects whose task was to discriminate between extroverts and introverts. The results were shown to be consistent with the diagnosing strategy but not with the confirmatory strategy of information-gathering.     

Effects of practice, instructions, and modeling on components of assertive behavior

Unassertive psychiatric patients matched on age, years of education, diagnosis, and self-reported assertiveness were assigned to one of five conditions, with 10 subjects in each group: (1) Test-Retest, (2) Practice-Control, (3) Instructions, (4) Modeling, (5) Modeling plus Instructions. All subjects were videotaped (Pre- and Post-Test) while responding to five interpersonal situations requiring assertive responses. Pre- and Post-Test responses for all subjects were rated independently by judges on seven verbal and non-verbal components of assertiveness. Analyses of variance for difference scores followed by multiple t-test comparisons indicated that the Modeling plus Instructions group was superior or equal to the Instructions alone or Modeling alone groups on five of the seven components. Instructions alone and Modeling alone led to greatest improvement in the remaining two components. No differences were found between the Practice-Control and Test-Retest groups on any of the seven components of assertiveness. No differences (Post-Pretest) were found among the groups on a self-report measure of assertiveness.     

Effect of two experimental sets on sleep structure.

The effect of four perceptual sets--First Night in a sleep laboratory, Second Night in a sleep laboratory, Shock Avoidance Night, Reward Night--on the distribution of sleep was examined with 12Ss. Both the shock avoidance and the reward conditions gave results similar to those characteristically found in the First Night Effect, i.e., increases in Stage 0, Stage 1, the latency to Stage 4, the number of Awakenings, and the number of Stage Changes coupled with a decrease in Stage 1-REM. The observed effects, however, were minimal and were interpreted as giving evidence for the sturdiness of the sleep process.     

Private self-consciousness, canned laughter, and responses to humorous stimuli

Sefl-focused attention is hypothesized to (a) intensify emotional responses; (b) diminish susceptibility to suggestion; and (c) increase the consistency of self-report and behavior. These hypotheses were tested by having 82 undergraduates varying in private self-consciousness (PrSC) listen to humorous stimuli presented either with (laugh track group) or without (no laugh track group) canned laughter. Subjects' funniness ratings and overt laughter served as dependent measures. Regression analyses revealed that PrSC and funniness ratings were negatively correlated in the laugh track group, but uncorrelated in the no laugh track group. In contrast, PrSC and overt laughter were positively correlated in both groups. The association between funniness and laughter appeared stronger in high than in low PrSC subjects. Interpreted in light of research indicating that funniness ratings represent affect-free evaluations of humor stimuli, whereas laughter represents amusement, these results suggest that self-focus (a) intensified subjects' amusement; (b) decreased the extent to which their evaluations of the stimuli were biased by canned laughter; and (c) increased the consistency between their (self-reported) cognitive and (overt behavioral) affective responses (although this finding was equivocal).     

Perceptual learning in visual category acquisition

The attribute structure of a set of dot patterns was studied by having subjects segment (parse) the dots of each pattern into parts or subunits by drawing circles around groups of dots from each pattern. These parsing data were obtained for subjects who had no prior experience with the patterns and for subjects who had previously learned to identify the patterns as members of one of four categories. Analyses of the parsing data indicated that category learning increased the salience of large subunits that were similar in orientation for patterns that were members of the same category. This evidence for perceptual learning was obtained even when the category training procedure required learning to identify the patterns individually, suggesting that attribute abstraction and item learning are not incompatible. It was also obtained without an increase in overall intersubject agreement. The latter result led us to question the usefulness of intersubject agreement as an index of category knowledge.     

Designing work environments to influence productivity

Features of the work environment can be designed to contain cues for performance standards, thereby influencing productivity on the job. This paper explores the importance of normative information for motivation and how it can be designed into the workplace in order to promote more efficient job behaviors.The author gratefully acknowledges the helpful comments of Terence R. Mitchell and J.H. Kerr Inkson on an earlier draft of this paper.