Psychometric properties of the Spanish version of the Running Addiction Scale (RAS)

Despite the growing number of Spanish people who organize their lives to prepare and participate in marathons, bringing to it a very committed lifestyle that, sometimes, go in detriment of their own health. In this instrumental paper, we the adaptation and testing of the psychometric properties of the Running Addiction Scale (RAS) in Spanish. To this end, we conducted two independent studies. The aim of the first was to present the first preliminary psychometric data (pilot sample of 174 marathon runners). Explained the process of translation, adaptation and content validity of items, we carried out a statistical analysis of these, an exploration of dimensional structure and analysis of the reliability of the instrument. In the second study (sample of 975 marathon runners), the aim was to analyze the internal structure of the instrument with confirmatory procedures. The Spanish version of the RAS showed acceptable levels of internal consistency, temporal stability, inter-item correlations and total scale score. Also provides evidences of construct validity. Slight differences were obtained by sex and age. These findings support the use of the Spanish version of RAS to assess individual differences in negative addiction to running.     

Social cognitive predictors of the interests and choices of computing majors: Applicability to underrepresented students

In a replication and extension of earlier research, we examined the explanatory adequacy of the social cognitive choice model (Lent, Brown, & Hackett, 1994) in a sample of 1404 students majoring in a variety of computing disciplines at 23 historically Black and 27 predominantly White universities. Participants completed measures of self-efficacy, outcome expectations, interests, goals, and social supports and barriers relative to the pursuit of computing degrees. The social cognitive model generally provided adequate fit to the data across two academic year cohorts (2006, 2007), gender, institutional setting, racial/ethnic groups (European and African Americans), and educational level (beginning and advanced undergraduates). Outcome expectations, however, did not contribute uniquely to the predictive model. Implications for further research on social cognitive theory in the context of science and technology fields are discussed.     

Choosing among techniques for quantifying single-case intervention effectiveness

If single-case experimental designs are to be used to establish guidelines for evidence-based interventions in clinical and educational settings, numerical values that reflect treatment effect sizes are required. The present study compares four recently developed procedures for quantifying the magnitude of intervention effect using data with known characteristics. Monte Carlo methods were used to generate AB designs data with potential confounding variables (serial dependence, linear and curvilinear trend, and heteroscedasticity between phases) and two types of treatment effect (level and slope change). The results suggest that data features are important for choosing the appropriate procedure and, thus, inspecting the graphed data visually is a necessary initial stage. In the presence of serial dependence or a change in data variability, the nonoverlap of all pairs (NAP) and the slope and level change (SLC) were the only techniques of the four examined that performed adequately. Introducing a data correction step in NAP renders it unaffected by linear trend, as is also the case for the percentage of nonoverlapping corrected data and SLC. The performance of these techniques indicates that professionals' judgments concerning treatment effectiveness can be readily complemented by both visual and statistical analyses. A flowchart to guide selection of techniques according to the data characteristics identified by visual inspection is provided.     

One more datum on Rorschach form quality

The central purpose of this work is to examine to what extent Form Quality (FQ) scoring of Rorschach responses, using Exner's (2003) Table A, is the reason for lower FQ to often be found in normative data outside the United States. The Rorschach protocols of 180 Portuguese boys and girls between 6 and 10 years of age were codified with respect to Form Quality in accordance with Exner's table of objects classified as ordinary, unusual, and minus, based on frequencies seen among U.S. adults and on an analogous Portuguese table (Table P) constructed from the protocols of 400 nonpatient children. Mean differences between the various FQ variables of the 2 tables were found to be insignificant. However, use of Janson's (2003) iota coefficient to evaluate agreement between the 2 approaches to scoring on the same protocols revealed that the more striking differences occurred in the FQu variable when agreement was assessed on the basis of each individual response. In view of these results, the authors recognize the possibility of Rorschach normative data to be universally applied, but still consider the possible advantage of each country or culture to build its own FQ table that will permit preservation of its particularities.     

Accuracy of diagnosis of depression in patients with Type 1 diabetes mellitus

This study assesses the clinical accuracy of physicians (Specialists in Endocrinology and Nutrition: SEN) to make the diagnosis of depression in patients with Type 1 diabetes mellitus (DM1). This study involved 11 SEN physicians, and 153 patients with DM1. The diagnosis of depression was performed using the SCID-1 structured interview and clinical assessment. From the initial sample, 50 patients were randomly selected (imposing the condition that it was included 25 patients with depression and 25 without depression). The results show that clinicians performed a higher percentage of negative diagnoses (patients without depression) than positive ones (patients with depression). A significant percentage of patients with depression were not diagnosed (25%). It therefore seems necessary to provide adequate clinical protocols to evaluate the presence of this disorder in DM1, as well as continuing research into the diagnostic process for clinical decision making.     

Utility of a statistical model of cognitive styles in attention deficit hyperactivity disorder

The purpose of this study was to determine the best statistical model of cognitive styles, based on the MFFT-20, CEFT and Stroop tests to predict attention deficit hyperactivity disorder (ADHD), analyzing the validity of the model for the diagnosis of the disease. We studied 100 ADHD cases (DSM-IV criteria) and 100 controls, age ranging between 7 and 11 years. Controls were randomly recruited and matched in age, gender and sociodemographic area with ADHD cases. On average, ADHD cases showed more impulsiveness (d: 1.28), less cognitive flexibility (d: 0.91) and more field dependence (d: 1.62) than controls. The logistic regression model that predicts ADHD best is made up of age, CEFT, MFFT-20 and Stroop tests and the formula derived from the model shows 85% sensitivity and 85% specificity for ADHD, regarding the DSM-IV criteria as the standard. The statistical model of cognitive styles presents valid indicators to diagnose ADHD, contributing to an increase in the objectivity of its analysis.     

Recognition confidence under violated and confirmed memory expectations

Individuals' memory experiences typically covary with those of others' around them, and on average, an item is more likely to be familiar if a companion recommends it as such. Although it would be ideal if observers could use the external recommendations of others' as statistical priors during recognition decisions, it is currently unclear how or if they do so. Furthermore, understanding the sensitivity of recognition judgments to such external cues is critical for understanding memory conformity and eyewitness suggestibility phenomena. To address this we examined recognition accuracy and confidence following cues from an external source (e.g., "Likely Old") that forecast the likely status of upcoming memory probes. Three regularities emerged. First, hit and correct-rejection rates expectedly fell when participants were invalidly versus validly cued. Second, hit confidence was generally higher than correct-rejection confidence, regardless of cue validity. Finally, and most noteworthy, cue validity interacted with judgment confidence such that validity heavily influenced the confidence of correct rejections but had no discernible influence on the confidence of hits. Bootstrap-informed Monte Carlo simulation supported a dual process recognition model under which familiarity and recollection processes counteract to heavily dampen the influence of external cues on average reported confidence. A 3rd experiment tested this model using source memory. As predicted, because source memory is heavily governed by contextual recollection, cue validity again did not affect confidence, although as with recognition it clearly altered accuracy.     

Motivational underpinnings of social influence in work settings: Bases of social power and the need for cognitive closure

This research explored the notion that the use and efficacy of influence tactics launched from different social power bases depends on influence agents' and recipients' need for cognitive closure. In three separate studies conducted in diverse organizational contexts, it was found that, while overall participants exhibited a preference for soft over hard social influence tactics, this preference becomes less pronounced for supervisors high (versus low) on need for closure and becomes more pronounced for supervisors low on the need for closure. Overall, soft tactics were more beneficial for subordinates' performance than hard tactics; however, the benefits of soft tactics decreased as a function of subordinates' need for closure. Finally, organizational outcomes were improved when recipients who were high (versus low) on the need for closure were exposed to “hard” power tactics and those low (versus high) in the need for closure were exposed to “soft” tactics. Copyright © 2011 John Wiley & Sons, Ltd.     

Persistence of attitude change and attitude–behavior correspondence based on extensive processing of source information

A three‐phase longitudinal study (spread over a month's time) was carried out to investigate attitude's persistence and linkage to behavior as it may be affected by the processing of information about the communication source. The following three independent variables were manipulated: (i) contents of the source of information (implying the communicator to be expert or inexpert on the topic of the communication); (ii) length of the source information (brief versus lengthy); and (iii) message recipients' involvement in the issue at hand (high versus low). Replicating prior research when the source information was brief, it exerted greater persuasive impact under low versus high involvement, and when it was lengthy, it exerted greater persuasive impact under high versus low involvement. Of greater importance, the newly acquired attitudes were more persistent and were linked more strongly to actual behavior when the source information was lengthy (versus brief) provided the recipients had high (versus low) involvement in the issue. These findings were interpreted to mean that just like with the message/issue information in prior research, when processed extensively, source information, too, may contribute to the formation of persistent and behavior‐driving attitudes. Copyright © 2011 John Wiley & Sons, Ltd.     

Associations between personality traits, physical activity level, and muscle strength

Associations among personality as measured by the Five Factor Model, physical activity, and muscle strength were assessed using data from the Baltimore Longitudinal Study of Aging (N = 1220, age: mean = 58, SD = 16). General linear modeling with adjustment for age, sex, race, and body mass index, and bootstrapping for mediation were used. We found neuroticism and most of its facets to negatively correlate with strength. The extraversion domain and its facets of warmth, activity, and positive-emotions were positively correlated with strength, independent of covariates. Mediation analysis results suggest that these associations are partly explained by physical activity level. Findings extend the evidence of an association between personality and physical function to its strength component and indicate health behavior as an important pathway.