Multiplicity,directional (type III) errors,and the null hypothesis

L. V. Jones and J. W. Tukey (2000) pointed out that the usual 2-sided, equal-tails null hypothesis test at level alpha can be reinterpreted as simultaneous tests of 2 directional inequality hypotheses, each at level alpha/2, and that the maximum probability of a Type I error is alpha/2 if the truth of the null hypothesis is considered impossible. This article points out that in multiple testing with familywise error rate controlled at alpha, the directional error rate (assuming all null hypotheses are false) is greater than alpha/2 and can be arbitrarily close to alpha. Single-step, step-down, and step-up procedures are analyzed, and other error rates, including the false discovery rate, are discussed. Implications for confidence interval estimation and hypothesis testing practices are considered.     

Waskawewin

This paper offers a spiritual and practical insight into Aboriginal dance and movement philosophies. It is written from the point of view of a performance maker who draws upon the connection between movement and life – a fundamental Cree insight – but who also utilizes a range of theatre and performance styles in order to create work.     

The illusion of mental health: in the mind of which beholder?

We reference self-ratings and clinician ratings of childhood anxious symptoms to a third data source well delineated with regard to the pathophysiology of anxiety. A total of 36 children with anxiety disorders and other children were administered yohimbine, an alpha-sub-2-adrenoreceptor antagonist, in response to which anxiety-prone children have blunted output of growth hormone. We assessed neuroendocrine reactions. In general, participants who claimed anxiety that was unconfirmed by clinicians displayed anxiotypic neuroendocrine profiles, whereas those who denied anxiety detected by clinicians did not, suggesting self-report may have had the advantage over clinician ratings in some instances. Nuanced and contextualized conclusions in this area of work are needed. In response to the question "the illusion of mental health: in the mind of which beholder?," we answer "it depends on the sample and the syndrome under study."     

Human affection exchange: II. Affectionate communication in father-son relationships

The father-son dyad might be the most socially significant male-male relationship in the life course, yet its negative qualities have been the sole focus in most research on the relationship. One communicative aspect that has received little scholarly attention is the expression of affection between fathers and sons, despite the strong correlation of affectionate communication with positive involvement, closeness, and relational satisfaction for fathers and sons. In 2 studies, the authors tested hypotheses about father-son affection that were derived from affection exchange theory (K. Floyd, in press). Results indicated that U.S. men are more affectionate with biological sons than with stepsons or adopted sons and that they are more affectionate with their biological sons than their biological sons are with them.     

Norwegian short-form of the Marlowe-Crowne Social Desirability Scale

A tutorial example demonstrates the effects of social desirability bias on fictional multiculturalism and mental health data and how bias can be moderated by parital correlations using social desirabiliry measures of different degrees of validity. The 33-item Marlowe-Crowne Social Desirability scale was translated from English to Norwegian and presented to 117 university students and 124 non-students. Using psychometric criteria, and a "seed-crystal" method accretion, a 10-item Norwegian short-form of the Marlowe-Crowne scale was produced.     

Managing Attitudes Toward High Achievers: The Influence 0f Group Discussion

For a variety of cultural, contextual, and interpersonal reasons, individual achievement often meets with potentially demotivating resistance from the group. In groups of between three and seven members, 397 psychology and social work students, in East and Northern Australian cities (Newcastle and Darwin), indicated their attitudes toward high achievers before, during, and after a group consensus task. In each location, and at both individual and group levels of analysis, initially slightly pro-achiever attitudes, following discussion of the issues, became polarized. Such changes, across diverse settings and groups, indicate that group discussion may be a robust tool, both for empowering teams and encouraging support for individual initiative.     

The double standard of aging and the social situation: Judgments of attractiveness of the middle-aged woman

Two hundred male and 200 female undergraduates judged pictures of middle-aged women and middle-aged men for their immediate emotional appeal. Pictures had been selected to be of middle attractiveness and to represent individuals who appeared to be between 35 and 55 years old. Subjects made judgments under one of the following social conditions: in private, or in small groups which were all male, all female, or half male and half female. Social condition and subjects' sex affected judgments significantly, and there were some significant complex interactions between these two variables and the sex of the stimulus picture. Male and female subjects privately judged middle-aged women to be more attractive than middle-aged men, but the effect was reversed when judgments were made publicly in groups. As predicted, members of all-male groups judged middle-aged women to be considerably less attractive than middle-aged men. Members of all-female groups, and both the men and the women in mixed-sex groups, judged middle-aged women to be only slightly less attractive than middle-aged men.The authors wish to thank Linda Andrews, Dayna Buskirk, Anne Grealy and Lori Monda for their assistance.     

Parent's report of stress and articulation oscillation as factors in a preschooler's dysfluencies

Recently, one focus of research on dysfluency and stuttering seems to be on the preschooler. One goal of such research should be to determine what factors in the child's language system and what factors in the social environment may put the child at risk for developing dysfluencies and stuttering. The following is a parent's account of the occurrence of dysfluencies in a preschooler. Emphasis is on a language phenomenon that might be labeled “articulation oscillation” and on apparent social environmental stress.     

“I Love You,Man”: Overt Expressions of Affection in Male Male Interaction

Despite the importance of affectionatecommunication for relational development andmaintenance, individuals expressing affection incur anumber of risks, including possible misinterpretation ofthe expressions as sexual overtures. These risks appear to bemagnified in the male-male relationship, where overtexpressions of affection may be all but prohibited bynormative expectancies. The present study examines expectancies for appropriate male-maleaffection. Although empirical research supports the ideathat overt affection is considered less appropriate inmale-male relationships than in relationships with women, it also suggests that three variablesmay moderate this expectancy: relationship type,emotional intensity of the context, and privacy level ofthe context. An experimental procedure with 140 men (approximately 95% caucasian) confirmed themoderating effects of these variables.     

Intensity resolution and subjective magnitude in psychophysical scaling

Several successful theories of psychophysical judgment imply that exponents of power functions in scaling tasks should covary with measures of intensity resolution such asd’ in the same tasks, whereas the prevailing metatheory of ideal psychophysical scaling asserts the independence of the two. In a direct test of this relationship, three prominent psychophysical scaling paradigms were studied: category judgment without an identification function, absolute magnitude estimation, and cross-modality matching with light intensity as the response continuum. Separate groups of subjects for each scaling paradigm made repeated judgments of the loudnesses of the pure tones that constituted each of two stimulus ensembles. The narrow- and wide-range ensembles shared six identical stimulus intensities in the middle of each set. Intensity resolution, as measured byd’-like distances, of these physically identical stimuli was significantly worse for the wide-range set for all three methods. Exponents of power functions fitted to geometric mean responses, and in magnitude estimation and cross-modality matching the geometric mean responses themselves, were also significantly smaller in the wide-range condition. The variation of power function exponents, and of psychophysical scale values, for stimulus intensities that were identical in the two stimulus sets with the intensities of other members of the ensembles is inconsistent with the metatheory on which modern psychophysical scaling practice is based, although it is consistent with other useful approaches to measurement of psychological magnitudes.