Perception of the color red enhances the force and velocity of motor output

The present research examined whether perception of the color red influences basic motor functioning. Prior research on color and motor functioning has been guided by ill-defined theoretical statements, and has been plagued by methodological problems. Drawing on theoretical and empirical work on the threat-behavior link in human and nonhuman animals, we proposed and tested the prediction that perceiving red enhances the force and velocity of motor output. Experiment 1 demonstrated that red, relative to gray (matched to red on lightness), facilitates pinchgrip force. Experiment 2 demonstrated that red, relative to gray (matched to red on lightness) and blue (matched to red on lightness and chroma) facilitates handgrip force and the velocity of that force. These findings clearly establish a link between red and basic motor action, illustrate the importance of rigorous experimental methods when testing color effects, and highlight the need to attend to the functional, as well as aesthetic, value of color.     

Global and domain-specific changes in cognition throughout adulthood

Normative adult age-related decrements are well documented for many diverse forms of effortful cognitive processing. However, it is currently unclear whether each of these decrements reflects a distinct and independent developmental phenomenon, or, in part, a more global phenomenon. A number of studies have recently been published that show moderate to large magnitudes of positive relations among individual differences in rates of changes in different cognitive variables during adulthood. This suggests that a small number of common dimensions or even a single common dimension may underlie substantial proportions of individual differences in aging-related cognitive declines. This possibility was directly examined using data from 1,281 adults 18-95 years of age who were followed longitudinally over up to 7 years on 12 different measures of effortful processing. Multivariate growth curve models were applied to examine the dimensionality of individual differences in longitudinal changes. Results supported a hierarchical structure of aging-related changes, with an average of 39% of individual differences in change in a given variable attributable to global (domain-general) developmental processes, 33% attributable to domain-specific developmental processes (abstract reasoning, spatial visualization, episodic memory, and processing speed), and 28% attributable to test-specific developmental processes. Although it is often assumed that systematic and pervasive sources of cognitive decline only emerge in later adulthood, domain-general influences on change were apparent for younger (18-49 years), middle aged (50-69 years), and older (70-95 years) adults.     

Preschools reduce early academic-achievement gaps: a longitudinal twin approach

Preschools may reduce inequalities in early academic achievement by providing children from disadvantaged families with higher-quality learning environments than they would otherwise receive. In this study, longitudinal data from a nationally representative sample of more than 600 twin pairs were used to estimate the contributions of genes, the shared environment, and the nonshared environment to cognition and achievement scores in children enrolled versus not enrolled in preschool. Attending preschool at age 4 was associated with reductions in shared environmental influences on reading and math skills at age 5, but was not associated with the magnitude of shared environmental influences on cognition at age 2. These prospective effects were mediated by reductions in achievement gaps associated with minority status, socioeconomic status, and ratings of parental stimulation of cognitive development. Lower socioeconomic status was associated with lower rates of preschool enrollment, which suggests that the very children who would benefit most from preschools are the least likely to be enrolled in them.     

Barriers and facilitators to public bicycle scheme use: A qualitative approach

The purpose of this study was to explore barriers and facilitators to using CityCycle, a public bicycle share scheme in Brisbane, Australia. Focus groups were conducted with participants belonging to one of three categories. Group one consisted of infrequent and non-cyclists (no bicycle riding over the past month), group two were regular bicycle riders (ridden a bicycle at least once in the past month) and group three was composed of CityCycle members. A thematic analytic method was used to analyse the data. Three main themes were found: Accessibility/spontaneity, safety and weather/topography. The lengthy sign-up process was thought to stifle the spontaneity typically thought to attract people to public bike share. Mandatory helmet legislation was thought to reduce spontaneous use. Safety was a major concern for all groups and this included a perceived lack of suitable bicycle infrastructure, as well as regular riders describing a negative attitude of some car drivers. Interestingly, CityCycle riders unanimously perceived car driver attitudes to improve when on CityCycle bicycles relative to riding on personal bicycles. Conclusions: In order to increase the popularity of the CityCycle scheme, the results of this study suggest that a more accessible, spontaneous sign-up process is required, 24/7 opening hours, and greater incentives to sign up new members and casual users, as seeing people using CityCycle appears critical to further take up.     

A Cross-cultural Analysis of Avoidance (Relative to Approach) Personal Goals

The results from this research supported our primary hypothesis that the adoption of avoidance (relative to approach) personal goals varies as a function of individualism-collectivism (across representations of this distinction). Interdependent self-construals were positively related and independent self-construals were negatively related to adoption of avoidance goals (Study 1), Asian Americans adopted more avoidance goals than non-Asian Americans (Study 2), and persons from South Korea and Russia adopted more avoidance goals than those in the United States (Studies 3 and 4, respectively). Studies 3 and 4 investigated and found support for our secondary hypothesis that avoidance personal goals are a negative predictor of subjective well-being in individualistic (the United States), but not collectivistic (South Korea and Russia), countries. The findings are discussed in terms of other approach-avoidance constructs and motivational processes.     

Adolescents with high mental toughness adapt better to perceived stress: A longitudinal study with Swiss vocational students

A mindset of mental toughness enables an individual to cope successfully with the pressures and demands of life. This 10-month study prospectively examined the association between mental toughness and stress resilience in 865 students (M = 17.86 years, 42.7% girls) from two vocational schools. Within each school, separate cluster analyses identified groups with different profiles of risk (assessed with perceived stress) and adaptation (operationalized with depressive symptoms and life satisfaction). Four clusters emerged characterizing students with well-adjusted (low risk, good adaptation), maladjusted (elevated risk, bad adaptation), deteriorated (low initial risk, worsening adaptation) and resilient profiles (elevated initial risk, improving adaptation). The latter two clusters reported similar levels of mental toughness at baseline, but resilient adolescents scored significantly higher on mental toughness at follow-up. After controlling for possible confounds, baseline toughness levels predicted depressive symptoms and life satisfaction over time. This study shows that mental toughness operates as a stress resilience resource. Mental toughness is, therefore a topic of interest for health specialists working with adolescent populations.     

Approach and Avoidance Temperament as Basic Dimensions of Personality

ABSTRACT This research comprises 6 studies designed to examine approach and avoidance temperament as basic dimensions of personality. In Study 1, we developed direct measures of approach and avoidance temperament. In Study 2, we demonstrated that the approach and avoidance temperament variables are not epiphenomena of response biases. In Study 3, we documented the test‐retest stability of the temperament variables. In Study 4, we documented that approach and avoidance temperament are separate from other like‐valenced variables and may be construed as the core of these variables. In Study 5, we documented that approach and avoidance temperament are separate from chronic promotion and prevention foci. In Study 6, we distinguished the temperament variables from achievement goal variables and documented the temperament variables as antecedents of achievement goals and achievement goals as proximal predictors of performance. Approach and avoidance temperament are discussed as an ideal foundation for a strong, enduring structure of personality.     

Integrity Testing and Deviance: Construct Validity Issues and the Role of Situational Factors

Two studies were conducted to investigate relationships among several types of preemployment integrity tests and situational factors which could play a role in employee deviance. In one study, three integrity measures were administered to subjects who were told to assume the role of job applicant for a position in either a large, small, or unspecified organization. Moral development stage, social desirability, and demographic data were collected. While there was some construct consistency across the different integrity measures, the expected relation between honesty and moral development was not found. There was also no difference in integrity test scores as a function of the organizational size manipulation. In a second laboratory study in which subjects were asked to play the role of job incumbents, both size and perceived equity of organizational climate were experimentally manipulated. The dependent measure was a scale of likelihood of engaging in organizationally proscribed behaviors. While again no effect was found for organizational size, those individuals who perceived themselves as employed in an organization in which employees are mistreated tended to report greater likelihood of engaging in organizational deviance. Implications for integrity testing in personnel selection are discussed.