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.     

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.     

School Climates and Student Behavior: Implications for Counselor Role

The current research on the study of school climates is described, and implications of this research for counselor role are indicated. This research has examined the nature of educational climates and environments, as well as the relationship of various environments to student achievement, attitudes, and behaviors. The research provides information about the nature of school environments as they are affected by staff characteristics and behaviors and student peer group characteristics. This research indicates that schools do have quite different climates which are supportive of diverse types of student and staff behavior. It appears that the adjustment and success of an individual student may well be a function of (a) the type of climate of the school he attends, and (b) the extent to which the school climate is supportive of his individual needs. After an extensive review of nine methodologies for studying school climate, possible applications of these research findings by the counselor are described.     

Exact procedures for the analysis of multidimensional contingency tables

The log-linear model for contingency tables expresses the logarithm of a cell frequency as an additive function of main effects, interactions, etc., in a way formally identical with an analysis of variance model. Exact statistical tests are developed to test hypotheses that specific effects or sets of effects are zero, yielding procedures for exploring relationships among qualitative variables which are suitable for small samples. The tests are analogous to Fisher's exact test for a 2 × 2 contingency table. Given a hypothesis, the exact probability of the obtained table is determined, conditional on fixed marginals or other functions of the cell frequencies. The sum of the probabilities of the obtained table and of all less probable ones is the exact probability to be considered in testing the null hypothesis. Procedures for obtaining exact probabilities are explained in detail, with examples given.     

The effects of perspective alterations on apparent size and distance scales

Ss made magnitude estimations first of the areas, then of the distances, of four circles presented at five distances within an enclosed box 9 ft long. There were three viewing situations: the box had parallel walls, converging walls, or diverging walls. The variations in perspective cues influenced the apparent distance scales: with converging and parallel walls, apparent distance grew as the 1.4 power of physical distance; with diverging walls, it grew as the .95 power. Apparent area was related to distance differently in the three conditions: with converging walls, apparent area increased with distance; with parallel and diverging walls, apparent area decreased with distance. Apparent area was thus not related to changes in physical distance as the apparent distance effects would predict. In each condition, the ratio of apparent area to apparent distance (S′/D′) was a monotonie increasing function of retinal angle θ, but the rate of growth varied among the three conditions. The failure of θ D′ to define a unique value of S′ across conditions indicates that the size-distance invariance hypothesis is inadequate to predict the outcome of this experiment.     

Medical Students’ Creation of Original Poetry,Comics, and Masks to Explore Professional Identity Formation

Introduction. This study examines differences in students’ perceived value of three artmaking modalities (poetry, comics, masks) and whether the resulting creative projects offer similar or different insights into medical students’ professional identity formation. Methods. Mixed-methods design using a student survey, student narrative comments and qualitative analysis of students’ original work. Results. Poetry and comics stimulated insight, but masks were more enjoyable and stress-reducing. All three art modalities expressed tension between personal and professional identities. Discussion. Regardless of type of artmaking, students express concern about encroachments of training on personal identity but hoped that personal and professional selves could be integrated.

     

Greater family identification—but not greater contact with family members—leads to better health: Evidence from a Spanish longitudinal study

We investigated the effect of family identification (one's subjective sense of belonging to and commonality with the family) on self‐reported ill‐health in 206 Valencian undergraduates, with eight months between Time 1 (T1) and Time 2 (T2). While greater family identification T1 predicted lower ill‐health T2, ill‐health T1 did not predict family identification T2. Family contact T1 (one's intensity of interaction with family) was unrelated to ill‐health T2. This shows that family identification impacts positively on health over time (rather than health impacting positively on family identification over time), and this is not reducible to effects exerted by family contact. These findings indicate that encouraging patients to engage in group activities might produce negligible health gains unless the patient identifies with the group in question.     

‘Sometimes,it's not just about the food': The social identity dynamics of foodbank helping transactions

Food insecurity in developed countries has increased rapidly. Research has suggested that stigma may inhibit food-aid help-seeking, but has failed to determine how such barriers might be overcome. Adopting a social identity perspective, this study explored the processes involved in food-aid helping transactions and sought to identify conditions that facilitate positive helping outcomes. Interviews were conducted with 18 clients and 12 volunteers at two English foodbanks, and a theoretically guided thematic analysis was conducted. Two primary themes were identified: ‘Here to Help’ and ‘The Legitimate Recipient’. This article offers a distinct and novel contribution by applying a social identity perspective to foodbank helping transactions, thereby demonstrating how group dynamics and behaviours are integral to these interactions, and by moving beyond the typical ‘Social Curse’ focus on barriers to help-seeking to explore how such obstacles may be overcome. Suggestions for addressing stigma-laden helping transactions and promoting successful delivery of aid are provided.     

Understanding and coping with immigration detention: Social identity as cure and curse

Over 29,000 foreign nationals are detained yearly in British Immigration Removal Centres for undefined periods. This study investigated the role played by social identities in the way detainees are affected by, make sense of, and deal with detention. An opportunity sample of 40 detainees was interviewed on topics including support, identity, and well-being, and data were analysed using theoretical thematic analysis. Participants struggled with loss of social networks, loss of rights, loss of agency, and joining a stigmatised group. Social identities guided exchange of support, aided meaning-making, and mitigated distrust, serving as ‘Social Cures’. However, shared identities could also be sources of burden, ostracism, and distress, serving as ‘Social Curses’. Inability to maintain existing identities or create new ones fuelled feelings of isolation. Participants also reported rejection/avoidance of social identities to maximise their benefits. This study is the first to apply the Social Identity Approach to the experience of immigration detention.     

“Should I Also Make a Garden Out of the Desert?”: Camus' Story of Janine

This article explores Albert Camus’ short story “The Adulterous Woman” as a nature-based initiation into deeper complexity. Rich with archetypal and alchemical imagery, we are taken through a day in the life of Janine, where we can see, reflected in her experience, those places that beckon to greater authenticity within ourselves. The image of the desert invites us to consider, for Janine, the same kinds of questions that Jung asked in The Red Book: “Why is my self a desert? Have I lived too much outside of myself in men and events? Why did I avoid my self? Was I not dear to myself? But I have avoided the place of my soul” (2009, par. 72).