Spending time: The impact of hours worked on work–family conflict

Scholars have long assumed that as workers spend more time at work fewer hours are available for their non-work lives leading to negative effects in both domains, and most studies examining the impact of work hours on work and life domains have supported this viewpoint. However, the majority of these studies have used one-dimensional measures of work–family conflict (WFC) and family–work conflict (FWC) on homogenous samples which included primarily married managers and professionals with children. Further, despite calls to examine non-linear relationships between work hours and WFC and FWC, few studies have done so. This study uses multi-dimensional measures to examine the linear and non-linear (quadratic) effects of work hours on WFC and FWC in a heterogeneous sample and examines the moderating effects of several work and family characteristics on these relationships. The findings indicate that whereas work hours have a linear relationship with WFC, the relationship between work hours and FWC is curvilinear. Managerial support was found to moderate the relationship between work hours and one dimension of FWC. Number of children moderated the relationships between work hours and WFC and another dimension of FWC.     

Assessing the Role of Spirituality in Coping Among African Americans Diagnosed with Cancer

Spirituality plays an important role in cancer coping among African Americans. The purpose of this study was to report on the initial psychometric properties of instruments specific to the cancer context, assessing the role of spirituality in coping. Items were developed based on a theoretical model of spirituality and qualitative patient interviews. The instruments reflected connections to self, others, God, and the world. One hundred African American cancer survivors completed the instruments by telephone. The instruments showed adequate internal reliability, mixed convergent validity, discriminant validity, and interpretable factor structures.     

A modified counterconditioning procedure prevents the renewal of conditioned fear in rats

Two studies using an ABA design examined the Extinction and renewal of conditioned barpress suppression. Following lights-off and foot shock pairings in Context A, rats were placed in Context B and were given either a standard counterconditioning procedure where the lights-off CS was paired with a novel food US delivered freely or a modified counterconditioning procedure where CS-US pairings only occurred if the rat earned the US by performing a required behavior during the CS. Results indicated that the modified counterconditioning procedure thwarted ABA renewal but the conventional counterconditioning procedure did not reduce ABA renewal any more than nonreinforced exposure to the CS alone. Furthermore, the response required during the modified counterconditioning procedure could be one used as a baseline response during Acquisition of fear or it could be a novel response. Implications of the results for theories of Extinction and renewal of fear are discussed.     

Assessing the Reliability of Situational Judgment Tests Used in High‐Stakes Situations

Assessing reliability of situational judgment tests (SJTs) in high‐stakes situations is problematic with reliability inappropriately measured by Cronbach's alpha when test items are heterogeneous. We computed the corrected, weighted mean alpha from 56 alpha coefficients, which produced a value of α = .46 and reviewed appropriate types of reliability to use with SJTs. In the current longitudinal study, SJT test–retest reliability was r = .82, compared with internal consistency, α = .46, and stratified alpha, α = .45 at Time 1 and α = .52 and stratified α = .51 at Time 2. We used a student sample (Time 1: n = 185; Time 2: n = 132) with items from a credentialing exam with ‘should do’ instructions. The SJT correlated significantly with cognitive ability, r = .30, and agreeableness, r = .24. In Study 2, we assessed test–retest reliability with Human Resource professionals (Time 1: n = 94; Time 2: n = 32) who had been recently credentialed and who participated in a pilot test of new SJT items with ‘most likely/least likely do’ response options. The SJT test–retest reliability was r = .66 compared with internal consistency, α = .43 and stratified α = .47 at Time 1 and α = .61 and stratified α = .67 at Time 2. We discuss the theoretical implications of the Study 1 results as well as the practical implications for use of SJTs in credentialing examinations.     

Social,Religious and Spiritual Capital and Physical/Emotional Functioning in a National Sample of African Americans

Spiritual and religious capital are forms of the broader construct of social capital. The present study, using probability‐based sampling methods, surveyed a national sample of African American adults to examine the relative contributions of spiritual and religious capital to their physical and emotional functioning. Analyses were conducted to determine if these constructs made a unique contribution above and beyond general social capital. African American men and women (N = 803) were interviewed by telephone. Hierarchical linear regressions revealed that, across the full sample, although social capital was a positive predictor of physical and emotional functioning (p < .05 and p < .001), neither religious nor spiritual capital made an additional contribution to these outcomes. However, the relationships among these variables differed for men and women. Among men, social capital predicted positive emotional functioning (p < .001) but not physical functioning; spiritual and religious capital made no additional contribution to either outcome variable. Among women, social capital predicted positive emotional functioning (p < .01) but not physical functioning. However, religious capital did make a significant additional contribution to the prediction of emotional functioning (ΔR², p < .01). Dividing the sample into different age groups did not produce any different findings from those found with the sample as a whole. Findings are discussed in terms of implications for church‐ and faith‐based health promotion interventions aimed at health disparities reduction. Copyright © 2011 John Wiley & Sons, Ltd.     

Environmental enrichment protects against the effects of chronic stress on cognitive and morphological measures of hippocampal integrity

Chronic stress has detrimental effects on hippocampal integrity, while environmental enrichment (EE) has beneficial effects when initiated early in development. In this study, we investigated whether EE initiated in adulthood would mitigate chronic stress effects on cognitive function and hippocampal neuronal architecture, when EE started one week before chronic stress began, or two weeks after chronic stress onset. Adult male Sprague Dawley rats were chronically restrained (6h/d) or assigned as non-stressed controls and subdivided into EE or non-EE housing. After restraint ended, rats were tested on a radial arm water maze (RAWM) for 2-d to assess spatial learning and memory. The first study showed that when EE began prior to 3-weeks of chronic stress, EE attenuated chronic stress-induced impairments in acquisition, which corresponded with the prevention of chronic stress-induced reductions in CA3 apical dendritic length. A second study showed that when EE began 2-weeks after the onset of a 5-week stress regimen, EE blocked chronic stress-induced impairments in acquisition and retention at 1-h and 24-h delays. RAWM performance corresponded with CA3 apical dendritic complexity. Moreover, rats in EE housing (control or stress) exhibited similar corticosterone profiles across weeks, which differed from the muted corticosterone response to restraint by the chronically stressed pair-housed rats. These data support the interpretation that chronic stress and EE may act on similar mechanisms within the hippocampus, and that manipulation of these factors may yield new directions for optimizing brain integrity and resilience under chronic stress or stress related neuropsychological disorders in the adult.     

Workload history effects: A comparison of sudden increases and decreases on performance

The present study examined workload history effects by manipulating sudden changes in workload level, and was designed to enable a direct comparison between sudden increasing and decreasing in workload conditions. A sample of 149 undergraduates was randomly assigned to either a sudden decrease or a sudden increase in workload condition. Participants performed a Sternberg memory task while percent correct was recorded. Mixed-model ANOVA results indicated that performance was significantly impaired for both conditions. Findings supported previous research suggesting that either a sudden decrease (High to Medium) or increase (Low to Medium) workload could result in impaired performance (Cox-Fuenzalida, in press; Cox-Fuenzalida & Angie, in press; Cox-Fuenzalida, Swickert & Hittner, 2004). Furthermore, this study suggests that a sudden decrease may result in greater detrimental effects. The authors express their gratitude to the research team from the Personality and Human Performance Research Laboratory at the University of Oklahoma for their invaluable assistance in data planning and collection. Laura Sohl is currently employed with the Oklahoma Office of Personnel Management.     

Oral form perception skills of stuttering and nonstuttering children measured by stereognosis

It has been suggested that a primary causative factor in stuttering is a disordered feedback mechanism. Some researchers have explored the relationship between stuttering and the integrity of the feedback mechanism through studies of oral form perception. The studies on the relationship between stuttering and oral form perception have been carried out largely on adult populations. The results of those studies have been contradictory. The purpose of this study was to explore the relationship of stuttering to oral form perception in a school-age population. The results are in agreement with previous studies which have indicated that stutters do not do as well as non-stutters on tasks of oral form perception.     

Femininity and work plans protect women against postpartum dysphoria

This study examined contributions of the following variables to postpartum depressive symptomatology: level of antepartum depression, loss of social reinforcement, assertiveness, sex-role orientation, and work plans. The Beck Depression Inventory (BDI), Pleasant Events Schedule (PES), Assertion Inventory, and Bem Sex Role Inventory (BSRI) were administered to 69 women during the eighth month of pregnancy. One month after delivery, subjects were administered the PES, postdelivery questionnaire, and BDI. A hierarchical regression analysis revealed that antepartum BDI scores predicted postpartum depressive symptomatology, and BSRI Femininity scores and work plans were significant negative predictors. A one-way analysis of variance of sex role orientation on postpartum BDI scores showed that undifferentiated women reported more depression than other sex role groups.