MEASUREMENT ERROR IN RESEARCH ON HUMAN RESOURCES and FIRM PERFORMANCE: HOW MUCH ERROR IS THERE AND HOW DOES IT INFLUENCE EFFECT SIZE ESTIMATES?

Studies of the relationship between human resource (HR) practices and firm performance typically use a single respondent to assess firm level HR practices or HR effectiveness. However, previous research in other substantive areas suggests that rater differences are a potentially important source of measurement error. We demonstrate analytically the potential consequences of both random and systematic measurement error in research on HR and firm performance. However, our main focus is on random error and we show how generalizability theory can be applied to obtain better estimates of reliability by simultaneously recognizing multiple sources (e.g., items, raters) of random measurement error. These more inclusive reliability estimates, in turn, offer the possibility of more precisely quantifying substantive relationships in the HR and firm performance literature. In our sample, reliabilities (as estimated by generalizability coefficients) for single-rater assessments of HR variables were generally below .50. This degree of measurement error, if present in substantive studies on HR and firm performance, could lead to considerable bias, given that an unstandardized regression coefficient is corrected for measurement error in the independent variable by dividing by its reliability coefficient (not its square root). We also found only limited convergent validity between HR and line managers ratings of a second type of HR measure, HR effectiveness. In general, our findings suggest that future researchers need to devote greater attention to measurement error and construct validity issues. Our study provides an example of how generalizability theory can be useful in this pursuit.     

Self-Compassion and Emotional Intelligence in Adolescence: A Multigroup Mediational Study of the Impact of Shame Memories on Depressive Symptoms

Several studies have highlighted the adaptive role of self-compassion on human suffering and on a wide range of psychopathological conditions. Extensive research has shown that emotional intelligence has been associated with well-being, mental and physical health and quality of interpersonal relationships. We set out to explore the mediating role of self-compassion and emotional intelligence on the relationship between shame traumatic memories and depressive symptoms, and to explore if these were different between female and male adolescents. The sample was composed of 1101 adolescents from general population, whose age ranged from 14 to 18 years. Participants filled out a battery of self-report questionnaires designed to measure shame traumatic memories, self-compassion, emotional intelligence and depressive symptoms. Correlational analysis showed that in male and female adolescents, shame traumatic memories are associated with more depressive symptoms and with lower levels of self-compassion and emotional intelligence. Multigroup analysis showed that emotional intelligence has a greater impact on depression in female adolescents. Also, the impact of shame traumatic memories on depression is stronger in males, even though females report shame traumatic memories as more impactful. This study provides preliminary evidence that self-compassion and emotional intelligence are important emotion regulation processes for depressive symptoms in adolescence.     

Hope and the Academic Trajectory of College Students

Previous longitudinal studies of student hope have established a connection between how people think about the future and their college achievement. This study examined the role of hope in predicting the achievement and retention of college students while controlling for educational history and two other psychological constructs, academic self-efficacy and engagement. Hope, self-efficacy, engagement were all correlated with both the number of semesters enrolled and cumulative grade point averages (GPAs) for the first 4 years of college. Hope was the only factor that had unique effects when examining predictors simultaneously and controlling for academic history. Hope uniquely predicted the number of enrolled semesters, whether students returned for the 2nd semester of college, whether students graduated in 4 years, and students’ GPAs across 4 years of college. Results therefore indicate that hope was the most robust predictor of academic achievement in college after controlling for educational history. These findings point to a need to help students develop the capacity to initiate and sustain movement toward goals in the pursuit of higher academic achievement.     

Cognitive Therapy for Obsessive-Compulsive Disorder: a Case Example

Cognitive therapy for OCD is an empirically validated alternative to the more widely used and validated behavioral therapy for OCD. The cognitive approach is based on the premise that belief systems contribute importantly to the development and maintenance of all types of OCD. By identifying and challenging maladaptive thoughts, beliefs, and core beliefs, patients can improve significantly and maintain their gains over time. This approach is demonstrated in detail with the case of Caroline, a 51-year-old woman with contamination obsessions.     

The structure of distress following trauma: posttraumatic stress disorder, major depressive disorder, and generalized anxiety disorder

The current report used confirmatory factor analysis to examine the latent structures of both key features and associated symptoms of three disorders that commonly develop following a traumatic event: posttraumatic stress disorder (PTSD), major depressive disorder (MDD), and generalized anxiety disorder (GAD). Participants were 228 motor-vehicle accident survivors who sought treatment for emotional difficulties. PTSD, MDD, and GAD were assessed with a combination of self-report and interview-based measures. The results of construct level analyses suggested that PTSD, MDD, and GAD are distinguishable but highly correlated disorders following a traumatic event. Symptom level analyses supported a model where the Reexperiencing, Avoidance, and Hypervigilance factors were subsumed under the PTSD construct. However, in this model the Dysphoria factor was a higher order construct correlated with the PTSD, MDD, and GAD factors, suggesting that the Dysphoria cluster may not be unique to PTSD. Diagnostic and theoretical implications of these results are discussed.     

Developing intuition for prices in euros: rescaling or relearning prices?

This article examines how numerical intuition for prices develops after a major change in currency. University students in Portugal (Study 1) and Austria (Study 2) made price estimates for 40 different items from November 2001 to June 2002, surrounding the time at which these countries switched to the euro. Overall results are more in accordance with a relearning hypothesis, considering that price estimates become progressively more accurate by a process that is related to buying frequency and, hence, is faster for frequently bought items. An alternative global rescaling hypothesis received mixed support. Results also suggest that price estimations in euros have not yet reached a level of accuracy comparable with estimations in the former national currency.     

Influence of the instructions on the performance and establishment of memorization strategies in space judgments

Studies of visual space perception have been assuming that people have an internal representation of the physical space that surrounds them. A variety of psychophysical procedures has been used in an attempt to measure the properties of visual space. The goal of the present study was to evaluate the accuracy of the mental representation and the strategies adopted to acquire and retain visuo-spatial information of a configuration as a function of two types of instructions. Thirty-eight undergraduate and graduate students participated in the study and were distributed in perceptive and mnemonic experimental conditions. The effect of the instructions (intentional and incidental) on the representation of the distances among the objects of the scene was estimated using exponents of power function, based on the reproduction of the distances among the stimuli of the scene. The results revealed that judgments made under intentional instructions were more frequently based on strategies related to the location of the stimuli, whereas judgments originating from incidental instructions were based on strategies related to the name of the stimuli. It was observed that the intentional instruction facilitated a more accurate mental representation of the observed experimental configuration, enhancing participants' performance.     

Being better by being right: subjective group dynamics and derogation of in-group deviants when generic norms are undermined

The authors predicted that derogation of group deviants depends on the extent to which in-group norms or values are validated or undermined in a social context. In Experiment 1 participants were less tolerant and derogated in-group deviants more when other in-group members opposed the norm. In Experiment 2 participants derogated in-group deviants more than out-group deviants and than noncategorized individuals, but only when normative in-group members lacked uniformity. In Experiment 3 participants derogated in-group deviants more when there was uncertainty about in-group superiority. These results are consistent with previous research on the black sheep effect (J. M. Marques, V. Y. Yzerbyt, & J. -P. Leyens, 1988) and with the model of subjective group dynamics (D. Abrams, J. M. Marques, N. J. Bown, & M. Henson, 2000; J. M. Marques, D. Abrams, D. Paez, & C. Martinez-Taboada, 1998).