Increasing walking in college students using a pedometer intervention: differences according to body mass index

Objective: The researchers assessed the effectiveness of a pedometer intervention and differences in walking behaviors according to body mass index (BMI). Participants: Two hundred ninety college students completed the intervention from January to February 2005. Methods: Participants wore pedometers 5 days per week for 12 weeks and completed questionnaires assessing demographic information. The authors calculated daily step averages for weeks 1, 6, and 12. They then classified students as underweight (UW), normal weight (NW), or overweight/obese, by BMI. The authors analyzed data using repeated-measures analysis of variance. Results: The average number of daily steps increased from week 1 to week 6 (p < .001) and week 12 (p = .002). UW participants reported the fewest steps at each time point, but the difference was significant only when compared with NW participants (p = .03). Conclusions: These results support the effectiveness of a pedometer intervention to increase walking in college students. Health benefits other than weight management should be emphasized to maximize the effects for all students.     

On Causal Inferences for Personalized Medicine: How Hidden Causal Assumptions Led to Erroneous Causal Claims About the D-Value

Abstract

Personalized medicine asks if a new treatment will help a particular patient, rather than if it improves the average response in a population. Without a causal model to distinguish these questions, interpretational mistakes arise. These mistakes are seen in an article by Demidenko that recommends the “D-value,” which is the probability that a randomly chosen person from the new-treatment group has a higher value for the outcome than a randomly chosen person from the control-treatment group. The abstract states “The D-value has a clear interpretation as the proportion of patients who get worse after the treatment” with similar assertions appearing later. We show these statements are incorrect because they require assumptions about the potential outcomes which are neither testable in randomized experiments nor plausible in general. The D-value will not equal the proportion of patients who get worse after treatment if (as expected) those outcomes are correlated. Independence of potential outcomes is unrealistic and eliminates any personalized treatment effects; with dependence, the D-value can even imply treatment is better than control even though most patients are harmed by the treatment. Thus, D-values are misleading for personalized medicine. To prevent misunderstandings, we advise incorporating causal models into basic statistics education.     

Approaches to Equity Management and their Relationship to Women in Management

Developing equitable practices that provide fair access for all individuals to the benefits and burdens within an organization remains a dilemma for management both in policy and in practice. Research continues to show that the employment status and representation for members of some groups is significantly less than in relation to those of other groups. Addressing the issue of disparity has resulted in a number of different approaches. The main aim of this paper is to explore the ability of a typological theory of equal employment opportunity implementation to account for the differences in the numbers of women in management and in management tiers. This paper identifies and analyses four ideal-typical equity management approaches to achieving workplace parity: traditional (non-compliance), anti-discrimination, affirmative action and equal employment opportunity. While the objective of these approaches may be to ensure equity management in order to encourage equal outcomes the results tell a different story. Results show that an affirmative action approach to equity management predicts increases in women in management across all tiers of management.     

Nonbiologic Objects as Actors

We generally understand interactions between human actors and nonbiologic objects (NBOs) as being indirect, with the human actor acting for the NBO and using the NBO as a “thing.” Under certain circumstances, however, human actors enter into direct interaction with NBOs and take on extra work in this process. Actors must “do mind” for the nonbiologic other to perceive “another” with whom it is possible to interact. The fiction that mind can exist where thought cannot be present is counterintuitive, making this process tenuous and heavily dependent upon the circumstances at hand. Four successive contingencies must be present to make possible the perceptual shift from object to actor. First, the actor must perceive the object in question as capable of independent action, whether or not the human actor initiates said action. Second, this separate and active status must become apparent through actions that threaten the human actor's desired goals. Third, these goals must be of sufficient urgency to warrant continuing in direct interaction with the object rather than reverting to nonanthropomorphized normal interaction. Finally, the object at hand must be necessary for completing the desired task.     

Psychometric Evaluation of the Affect Regulation Checklist: Clinical and Community Samples,Parent-Reports and Youth Self-Reports

The Affect Regulation Checklist (ARC) was designed to capture affect dysregulation, suppression, and reflection. Importantly, affect dysregulation has been established as a transdiagnostic mechanism underpinning many forms of psychopathology. We tested the ARC psychometric properties across clinical and community samples and through both parent-report and youth self-report information. Clinical sample: Participants included parents (n = 814; M_age = 43.86) and their child (n = 608; M_age = 13.98). Community sample: Participants included independent samples of parents (n = 578; M_age = 45.12) and youth (n = 809; M_age = 15.67). Exploratory structural equation modeling supported a three-factor structure across samples and informants. Dysregulation was positively associated with all forms of psychopathology. In general, suppression was positively associated with many forms of psychopathology, and reflection was negatively associated with externalizing problems and positively associated with internalizing problems.     

Relational Ethics,Depressive Symptoms,and Relationship Satisfaction in Couples in Therapy

The purpose of this study was to examine depressive symptoms and relationship satisfaction as problems related to relational ethics in one's family of origin and current partner relationships in a sample of 68 other‐sex couples seeking therapy at a large university clinic. We used the Actor Partner Interdependence Model to analyze dyadic data collected prior to beginning therapy. Specifically, we found significant actor effects between relational ethics in one's family of origin and depressive symptoms, as well as between depressive symptoms and low relationship satisfaction for both male and female partners. We also found significant partner effects for relational ethics in current partner relationship, depressive symptoms, and low relationship satisfaction. Clinical application of contextual therapy theory is discussed.     

Comparing the Utility of a Modified Diagnostic Interview for Gambling Severity (DIGS) with the South Oaks Gambling Screen (SOGS) as a Research Screen in College Students

The South Oaks Gambling Screen (SOGS) is compared in reliability to a modified version of the Diagnostic Interview for Gambling Severity (DIGS-S) for use as a pathological gambling (PG) screen in college students. Seventy-two undergraduates (83.3% male, mean age of 18.8) from the University of Georgia completed the measures, completing a longitudinal design with 3 sessions over a 2-month time period. The DIGS-S and the SOGS demonstrated good internal consistency over the 3 sessions, with Cronbach’s Alphas ranging from 0.73 to 0.89, as well as strong concurrent validity, with correlations of .50 to .80 (Ps < .001) between the 2 measures across the 3 sessions. Both Cronbach’s alpha and test–retest reliability were higher with the DIGS-S than the SOGS. Given this, and given that the DIGS directly measures symptoms of pathological gambling, future research could benefit from the use of the DIGS-S as a PG screening tool in a college-aged sample.