Measuring Anhedonia in Adolescents: A Psychometric Analysis

Anhedonia—the reduced capacity to experience pleasure—is a trait implicated in mental and physical health. Yet, psychometric data on anhedonia measures in adolescents are absent. We conducted an in-depth psychometric analysis of the Snaith–Hamilton Pleasure Scale (SHAPS; Snaith et al., 1995 Snaith, R. P., Hamilton, M., Morley, S., Humayan, A., Hargreaves, D., & Trigwell, P. (1995). A scale for the assessment of hedonic tone: The Snaith–Hamilton Pleasure Scale. British Journal of Psychiatry, 167, 99–103. doi:10.1192/bjp.167.1.99[Crossref], [PubMed], [Web of Science ®] , [Google Scholar])—a self-report measure of anticipated pleasure response to 14 pleasant experiences—in adolescents. Adolescents (N = 585, M age = 14.5) completed the SHAPS and other paper-and-pencil surveys. Item response theory models were used to evaluate the psychometric performance of each SHAPS item. Correlations of the SHAPS with other personality and psychopathology measures were calculated to evaluate construct validity. Results showed that (a) certain items (e.g., reported pleasure from basic experiences like “seeing smiling faces” or “smelling flowers”) provided more information about latent anhedonia than others; and (b) SHAPS scales exhibited construct-consistent convergent and discriminant validity (i.e., stronger correlations with low positive affect constructs, weaker correlations with negative affect). Reporting diminished pleasure from basic pleasant experiences accurately indicates adolescent anhedonia, which is important for future scale development and understanding the phenomenology of anhedonia in teens. These data support using the SHAPS for assessing anhedonia in epidemiological research and school-based universal prevention programming in general adolescent populations.     

The evolutionary basis of risky adolescent behavior: implications for science, policy, and practice

This article proposes an evolutionary model of risky behavior in adolescence and contrasts it with the prevailing developmental psychopathology model. The evolutionary model contends that understanding the evolutionary functions of adolescence is critical to explaining why adolescents engage in risky behavior and that successful intervention depends on working with, instead of against, adolescent goals and motivations. The current article articulates 5 key evolutionary insights into risky adolescent behavior: (a) The adolescent transition is an inflection point in development of social status and reproductive trajectories; (b) interventions need to address the adaptive functions of risky and aggressive behaviors like bullying; (c) risky adolescent behavior adaptively calibrates over development to match both harsh and unpredictable environmental conditions; (d) understanding evolved sex differences is critical for understanding the psychology of risky behavior; and (e) mismatches between current and past environments can dysregulate adolescent behavior, as demonstrated by age-segregated social groupings. The evolutionary model has broad implications for designing interventions for high-risk youth and suggests new directions for research that have not been forthcoming from other perspectives.     

Is Adolescent Bullying an Evolutionary Adaptation?

Bullying appears to be ubiquitous across cultures, involving hundreds of millions of adolescents worldwide, and has potentially serious negative consequences for its participants (particularly victims). We challenge the traditionally held belief that bullying results from maladaptive development by reviewing evidence that bullying may be, in part, an evolved, facultative, adaptive strategy that offers some benefits to its practitioners. In support of this view, we draw from research that suggests bullying serves to promote adolescent bullies' evolutionarily-relevant somatic, sexual, and dominance goals, has a genetic basis, and is widespread among nonhuman animals. We identify and explain differences in the bullying behavior of the two sexes, as well as when and why bullying is adaptive and when it may not be. We offer commentary on both the failures and successes of current anti-bullying interventions from an evolutionary perspective and suggest future directions for both research and anti-bullying interventions.     

Adolescent bullying and personality: An adaptive approach

From an evolutionary perspective, bullying behavior may be viewed as adaptive in nature. Moreover, as bullies may utilize both prosocial and aggressive means to achieve desired goals, they likely exhibit specific personality traits that allow for this bistrategic approach to survival. Therefore, after accounting for general aggression levels, bullying should be negatively associated with personality traits such as fairness and modesty (Honesty-Humility), but unrelated to traits such as forgiveness and tolerance (Agreeableness). Additionally, the intentional nature of the behavior suggests that bullying should be positively associated with instrumental, but not reactive, aggression. A sample of 310 adolescents completed measures of bullying, personality, and instrumental/reactive aggression. Results supported the hypotheses and are interpreted from an adaptive perspective.     

Paternal care may influence perceptions of paternal resemblance

Father-child resemblance is increasingly attracting attention from researchers interested in studying paternal investment. The current study sought to determine whether a quasi-experimental infant massage intervention would increase father's perceptions of resemblance. The study included a dozen fathers in each of two groups: the first received an intensive series of lessons on infant-father massage along with their infants, while the second group served as a neutral control. We failed to find significant correlations between paternal investment and resemblance, but we found that fathers who participated in the infant massage intervention reported significantly larger post-study ratings of resemblance and lower ratings of paternal stress. This suggests that the relationship between father-child resemblance and paternal investment may be bidirectional.     

Spirituality and Confidence to Resist Substance Use Among Celebrate Recovery Participants

Since self-efficacy is a positive predictor of substance use treatment outcome, we investigated whether it is associated with spirituality within a religious 12-step program. This was a cross-sectional survey (N = 91) of 10 different Celebrate Recovery sites held at community churches. The mean spirituality score for those with high confidence was significantly greater than those with low confidence. Spirituality associated with greater confidence to resist substance use (OR = 1.09, 95% CI 1.02–1.17, P < 0.05). So every unit increase of measured spirituality increased the odds of being above the median in self-efficacy by 9%. We conclude that spirituality may be an important explanatory variable in outcomes of a faith-based 12-step recovery program.     

Communal Orientation and Burnout Among Self-Help Group Leaders

To assess the relationship between burnout, communal orientation, and leaders' perceptions of balance in their relationships with group members 102 self-help group leaders were interviewed. Leaders had low to moderate levels of burnout as measured by the Maslach Burnout Inventory subscales of emotional exhaustion, depersonalization, and personal accomplishment. As hypothesized, leaders' communal orientation was negatively related to the burnout subscales of depersonalization and personal accomplishment. Contrary to the study hypothesis, burnout was not related to balance. It was speculated that the salience of need-based norms in the group's helping relationships reduced expectations of reciprocity. The findings illustrate the usefulness of applying equity theory to studies of helping relationships within the setting of self-help groups.     

Influence of infant and child facial cues of low body weight on adults' ratings of adoption preference,cuteness, and health

Infant and child facial cues have been shown to influence decisions and perceptions associated with parental care in adults. Low body weight reflects health problems in infants and children; therefore, facial cues associated with low body weight may influence adult cognitive processes associated with parental care and investment. Facial images of infants and children were digitally manipulated to simulate cues of low body weight and presented to adults using a hypothetical adoption paradigm. Participants' ratings of adoption preference, cuteness, and health were significantly lower for the digitally manipulated low body weight facial images than their unaltered counterparts. These findings support the hypothesis that facial cues of poor health negatively influence adults' responses to infants and children.