Short-term predictive validity of cluster analytic and dimensional classification of child behavioral adjustment in school

A constructive debate over the classification of child psychopathology can be stimulated by investigating the validity of different classification approaches. We examined and compared the short-term predictive validity of cluster analytic and dimensional classifications of child behavioral adjustment in school using the Behavior Assessment System for Children (BASC; [Reynolds, C. R., and Kamphaus, R. W. (1992). Behavior Assessment System for Children (BASC). Circle Pines, MN: AGS.]) Teacher Rating Scales for Children (TRS-C). We cluster analyzed 14 dimensional scores of children's behavior in first grade and identified seven clusters. Then we examined the predictive power of the dimensions and the clusters using a variety of school outcomes in second grade, including academic achievement scores in reading and math, absenteeism, discipline reports, and participation rates in pre-referral intervention. Both methods significantly predicted all school outcomes with similar magnitudes of effect sizes, but the dimensional approach was more powerful in predicting the outcomes except pre-referral intervention. Moreover, coherent group differences in the clusters were identified with respect to the school outcomes. This latter finding may suggest differentiated prognoses of cluster membership. The implications for future validation studies of alternative classification systems of child behavioral adjustment are discussed.     

The missing fundamental in vowel height perception

Traunmüller (1981) suggested that the tonotopic distance between the first formant (F ₁) and the fundamental frequency (F ₀) is a major determinant of perceived vowel height. In the present study, subjects identified a vowel-height continuum ranging in formant pattern from /?/ to /ε/, at fiveF ₀ values. IncreasingF ₀ led to an increased probability of /I/ responses (i.e., the phoneme boundary shifted toward the /ε/ end of the continuum). Various conditions of filtering out the lower harmonics of the stimuli caused only marginal shifts of the phoneme boundary. The experiments provide evidence against interpretations of Traunmüller’s (1981) results that claim that vowel height is determined by the distance betweenF ₁ and the lowest harmonic that is present in the basilar membrane excitation pattern.     

Imperfection,Indecision, and Hoarding

Hoarding disorder is a new DSM-5 disorder that causes functional impairment and affects 2 to 6% of the population (Frost and Steketee 2014). The current study evaluated a multiple mediation model with 243 undergraduate women in which indecisiveness (VOCI; Thordarson et al. Behaviour Research and Therapy, 42(11), 1289-1314, 2004) and decisional procrastination (DPS; Mann 1982) mediated the relationship between dimensions of perfectionism (F-MPS-B; Burgess et al. 2016a) and hoarding behavior (SI-R; Frost et al. Behaviour Research And Therapy, 42(10), 1163–1182, 2004) and excessive acquiring (CAS; Frost et al. Annual Review of Clinical Psychology, 8, 219–242, 2012). Multiple mediational analyses indicated a significant indirect effect for decisional procrastination, but not indecisiveness, in mediating evaluative concerns (but not striving) to SI-R Total, SI-R Clutter, SIR Excessive Acquisition, and both CAS subscales. Both mediators were significant pathways between evaluative concerns and SI-R Difficulty Discarding. These findings support a cognitive behavioral model of hoarding, suggesting that evaluative concerns produces problems in decision-making that influence acquisition, discarding, and clutter.     

The Relationship Between Forgiveness and Borderline Personality Symptomatology

The relationship between forgiveness and borderline personality symptomatology has been rarely studied. Using a consecutive cross-sectional sample of 307 internal medicine outpatients and a survey methodology, we examined correlations between the Forgiveness Scale and borderline personality symptomatology as measured by the borderline personality disorder scale of the Personality Diagnostic Questionnaire-4 and the Self-Harm Inventory. Numerous forgiveness subscales as well as the composite Forgiveness Scale score demonstrated statistically significant relationships with both measures for borderline personality symptomatology, such that individuals with this personality pathology demonstrated lower scores on these forgiveness subscales. Findings indicate that among individuals with borderline personality symptomatology, there are numerous aspects of forgiveness that are significantly lower than in individuals without this symptomatology.     

Handedness in a virtual haptic environment: Assessments from kinematic behavior and modeling

This study evaluated hand asymmetries in performance of a dexterous, controlled task under haptic feedback. Participants punctured a virtual membrane with a pushing or pulling movement, using the left or right hand. For pulling movements, the dominant (right) hand exhibited faster average stopping latency and shorter skidding distance. When the kinematic data were fit to a three-phase model previously applied to this task (Klatzky et al., 2013), the right hand exhibited faster force decay attributable to biomechanical factors. Analyses of the aggregated performance measures and model parameters showed that the left and right hands are associated with two different distributions, supporting handedness effects. Furthermore, while the majority of participants expressed right-hand dominance, which was consistent with their self-reported hand preferences, others showed partial or no dominance. This approach could potentially be extended to quantify and differentiate individuals with difficulties in manual behavior due to abnormal motor control (e.g., dyspraxia), progressive deterioration (e.g., Parkinson's syndrome) or improvement (neural regrowth after transplant).     

The utility of psychological testing in assessing emotional damages in personal injury litigation

Psychological testing and assessment instruments frequently play a small but important role when psychologists assist the courts as emotional damage experts in personal injury matters. However, examiners frequently, if sometimes inadvertently, mislead the court with test interpretations that are based on clinical rather than forensic populations and that fail to appreciate the lack of robustness of clinical measures in this forensic context. Whereas published computerized interpretations repeatedly remind experts that personality test results should only be used as a method to generate hypotheses about the examinee that are to be subjected to further investigation and consideration, experts all too often inform the courts of test interpretations as if the test results were measures of clinical constructs rather than plaintiffs' self-reports of symptoms.     

Training and credentialing in forensic psychology

The number of training programs in forensic psychology has grown considerably in the past 15 years. Numerous opportunities exist for individuals interested in pursuing careers in the forensic area. Interdisciplinary training in several forms is discussed: J.D. -Ph.D. Programs, specialist Ph.D. Programs, predoctoral internships, and postdoctoral fellowships. Continuing professional education, credentialing, and board certification in forensic psychology are also addressed. Despite the face validity of these various types of training and credentialing, little is known about their relative utilities.     

Examining the Course of Suicidal and Nonsuicidal Self-Injurious Thoughts and Behaviors in Outpatient and Inpatient Adolescents

Suicidal and nonsuicidal self-injurious thoughts and behaviors (SITBs) among youth are major public health concerns. Although a growing body of research has focused on the complex association between nonsuicidal and suicidal self-injury, the temporal relationship between these two classes of behaviors is unclear. The current study addresses this empirical gap by examining the course of SITBs in adolescents receiving outpatient (N = 106; 82.1 % female) and inpatient (N = 174; 75.9 % female) treatment. SITBs (co-occurrence, age-of-onset, and time lag between SITBs) and major psychiatric disorders were assessed at a single time point with well-validated structured interviews. Adolescents in both clinical samples reported high co-occurrence of SITBs: most adolescents reported both lifetime nonsuicidal self-injury (NSSI) and suicidal thoughts. A similar temporal pattern of SITBs was reported in the two samples: thoughts of NSSI and suicide ideation had the earliest age-of-onset, followed by NSSI behaviors, suicide plans, and suicide attempts. However, the age-of-onset for each SITB was younger in the inpatient sample than in the outpatient sample. In terms of time lag between SITBs, suicide ideation occurred on average before initial engagement in NSSI, suggesting that pathways to NSSI and suicidal behavior may occur simultaneously rather than in succession from nonsuicidal to suicidal self-injury. Results also indicated that the time to transition between SITBs was relatively fast, and that a key period for intervention and prevention is within the first 6–12 months after the onset of suicidal thinking. Taken together, these findings have important implications for understanding the time-lagged relationship between nonsuicidal and suicidal self-injury.     

The opponent process theory and affective reactions

Solomon (1980) proposed an opponent process theory to account for motivational and affective dynamics. This theory asserts that the brain avoids extremes of emotional experience by countering the stimulation it receives with an opposite or opponent reaction. Opponent processes are thought to be responsible for the characteristic changes in affective experience that occur over time, and to account for the dynamics of affective response to such stimuli as skydiving and sauna bathing, which have heretofore been difficult to explain. However, the relevance of this theory for affective experiences in general (beyond physical stimuli and addictions) has yet to be demonstrated. The present paper examines opponent process theory predictions in two settings, involving affective responses to situation-scenarios and emotion-provoking slides. In each study, significant habituation to both positive and negative affective stimuli was found, as the opponent process theory would predict. Subjects also showed a reversal of affect when the stimuli were reversed from positive to negative or vice versa. However, contrary to opponent process theory predictions, there was no evidence that withdrawal responses were greater after habituation to the affective stimulus. The only instance of a significant difference in withdrawal responses was actually in a direction opposite to that which the opponent process theory predicts. All other predicted differences were not significant. The opponent process theory, therefore, was not supported in these data and appears to need revision or qualification as to its domains of application.