A critique of the usefulness of inferential statistics in applied behavior analysis

Researchers continue to recommend that applied behavior analysts use inferential statistics in making decisions about effects of independent variables on dependent variables. In many other approaches to behavioral science, inferential statistics are the primary means for deciding the importance of effects. Several possible uses of inferential statistics are considered. Rather than being an objective means for making decisions about effects, as is often claimed, inferential statistics are shown to be subjective. It is argued that the use of inferential statistics adds nothing to the complex and admittedly subjective nonstatistical methods that are often employed in applied behavior analysis. Attacks on inferential statistics that are being made, perhaps with increasing frequency, by those who are not behavior analysts, are discussed. These attackers are calling for banning the use of inferential statistics in research publications and commonly recommend that behavioral scientists should switch to using statistics aimed at interval estimation or the method of confidence intervals. Interval estimation is shown to be contrary to the fundamental assumption of behavior analysis that only individuals behave. It is recommended that authors who wish to publish the results of inferential statistics be asked to justify them as a means for helping us to identify any ways in which they may be useful.     

Grief Therapy: An Experiential Workshop

The authors conducted a workshop at a family therapy conference in South Africa in 1997 to explore the use of healing rituals in grief work. There were two levels involved: First, an experiential workshop, and, second, a metalevel in exploring the use of rituals as a rite of passage to facilitate transitions. A draft of the authors' paper was sent to all participants for their comments, which are included in the text.     

How Not to Prove the Existence of ‘Atomless Gunk’

In his ‘Could Extended Objects Be Made Out of Simple Parts?: An Argument for “Atomless Gunk’’, Dean Zimmerman defends the claim that no physical object has a complete decomposition into simples but instead has among its parts a piece of ‘atomless gunk’ His argument for this claim rests in part upon a theory of the impenetrability of physical objects. In that theory, Zimmerman distinguishes ‘[t]he sort of impenetrability that is a part of the concept of’ a physical object from ‘a power to resist the pressure of other objects’. He says that impenetrability is but ‘an essential inability’ of two physical objects to occupy one and the same region of space, an essential inability that is not a power of one physical object to exert repulsive forces on others in its vicinity. I argue that this theory of impenetrability is false and that Zimmerman's argument for the existence of ‘atomless gunk’ fails.     

Gender Stereotypes and the Coordination of Mnemonic Work within Heterosexual Couples: Romantic Partners Manage their Daily To-Dos

Couples appear to help each other remember outstanding tasks (“to-dos”) by issuing reminders. We examine if women and men differ in the frequency with which they offer this form of mnemonic assistance. Five studies measure how heterosexual couples coordinate mnemonic work in romantic relationships. The first two studies demonstrate that men are assumed to do less of this form of mnemonic work (Study 1) and experience less societal pressure to do so than women do (Study 2). The next three studies suggest that men tend to do less of this mnemonic work than women do and that, when men do mnemonically help their partners, the help tends to involve errands for which they are stakeholders. This notion was evidenced in the greater accessibility of examples of women’s reminding acts than men’s reminding acts for both partners (Study 3) and in the less helpful reminders that men provided, compared to those women provided, as rated by both partners (Study 4a) and independent coders (Study 4b). These results converge on the possibility that men, relative to women, are less inclined to be concerned with keeping track of their partners” outstanding needs, perhaps because doing so is a behavior that is less strongly prescribed for men than for women. Implications for helping behavior and the possible consequences associated with performing disproportionate mnemonic work in relationships are discussed.     

Discrimination and Eating Disorder Psychopathology: A Meta-Analysis

Eating disorders occur in diverse populations, and discrimination may be a specific factor that is related to higher eating disorder psychopathology among marginalized individuals. To evaluate the current evidence on this topic, a meta-analysis was used to quantitatively synthesize the literature on discrimination and eating disorder psychopathology across a heterogeneous range of studies. Searches were conducted in peer-reviewed journals and accessible unpublished dissertations of all years through January 2020. Studies were coded by two authors using a tailored coding form, and zero-order bivariate correlations were used as effect size measures. There were 55 cross-sectional studies extracted for inclusion in the meta-analysis. Results showed a small-to-medium association between discrimination and eating disorder psychopathology that was consistent across domains. Effect sizes were typically higher for weight discrimination. For binge eating and general eating disorder pathology, effects were smaller in studies that had larger proportions of women, and for binge eating only, effects were higher in college samples. These findings could suggest that discrimination represents a contributory factor related to eating disorder psychopathology across types of discrimination and eating disorder psychopathology. Implications are discussed for future research on discrimination and psychopathology including possible mechanisms.     

A PRACTICAL STRATEGY FOR ONGOING REINFORCER ASSESSMENT

There is a need for practical methods of reinforcer assessment that systematically track ongoing changes in clients' preferences. In this study, the effects of a time-efficient reinforcer assessment package were evaluated in a multiple baseline across 3 preschoolers with autism, comparing individualized item selections by experienced teachers with children's presession preferences for items of various sensory qualities. Systematic assessment of children's reinforcers for correct responding virtually eliminated nontargeted maladaptive behaviors, as well as yielding expected improvements in accuracy. The powerful side-effects of potent reinforcers underline the importance of increased attention to reinforcer assessment in research and practice.     

Differences between Saimiri sciureus and Callicebus moloch in physiological responsiveness: implications for behavior

The New World primates Callicebus moloch and Saimiri sciureus differ markedly in life modes. Physiological responsiveness (heart rate, cortisol) of these related taxa was compared in two situations that differed in the presumed degree of stress imposed, exposure to a novel environment and physical restraint. In both situations, Saimiri exhibited higher initial levels of heart rate and corticosteroids. In addition, the species differed in their patterns of response to both situations. Saimiri maintained initial heart rate levels across a 1-hour exposure period, whereas Callicebus showed a marked and continuous decline in heart rate. Adrenocortical activity increased in both species in response to test situations, but the elevations in plasma corticosteroids were substantially greater for Saimiri than for Callicebus. The results indicate that the species differ with respect to organization of physiological regulatory systems in a manner consistent with behavioral contrasts between them.