Multivariate data analysis in empirical research

The interpretive benefits of employing multivariate analysis methods on experimental data with more than one dependent variable are described heuristically and illustrated on a set of data from a simply designed experiment in physiological psychology. Multivariate analysis of variance (MANOVA) is performed on the 9 dependent variables contained in the sample data and on the four composites derived from a principal components analysis (PCA) of the variability of the nine. A linear discriminant analysis (LDA) is conducted following both MANOVA results, and 5 methods of determining the “important” dependent variables in the experimental-control group difference are presented and discussed in terms of the data at hand.     

Generativity and successful parenting: an analysis of young adult outcomes

Generativity scores were assessed in parents and correlated with offspring outcomes. The offspring were participants in a longitudinal study spanning their first and senior years of college. Generativity of parents was positively related to offspring agreeableness and conscientiousness. Parental generativity was also related to offspring scores on future time orientation and positive affect. In addition, generative parents seemed to model their political interests to offspring, and that modeling was related to children's higher scores on generativity and greater interest in politics. Parental generativity was also related to offspring religiosity. Most of these relationships remained significant after controlling for offspring scores on generativity. Generativity of parents appears to be related to successful offspring outcomes.     

Hierarchical modeling of sequential behavioral data: an empirical Bayesian approach

The authors review the common methods for measuring strength of contingency between 2 behaviors in a behavioral sequence, the binomial z score and the adjusted cell residual, and point out a number of limitations of these approaches. They present a new approach using log odds ratios and empirical Bayes estimation in the context of hierarchical modeling, an approach not constrained by these limitations. A series of hierarchical models is presented to test the stationarity of behavioral sequences, the homogeneity of sequences across a sample of episodes, and whether covariates can account for variation in sequences across the sample. These models are applied to observational data taken from a study of the behavioral interactions of 254 couples to illustrate their use.     

Imaginative suggestibility and hypnotizability: an empirical analysis.

Hypnotic and nonhypnotic suggestibility were investigated in 2 experiments. In Experiment 1, nonhypnotic suggestibility was suppressed when measured after hypnotic suggestibility, whereas hypnotic suggestibility was not affected by the order of assessment. Experiment 2 confirmed a small but significant effect of hypnosis on suggestibility when nonhypnotic suggestibility was measured first. Nonhypnotic suggestibility was correlated with absorption, fantasy proneness, motivation, and response expectancy, but only expectancy predicted suggestibility when the other variables were controlled. Behavioral response to hypnosis was predicted by nonhypnotic suggestibility, motivation, and expectancy in a model accounting for 53% of the variance. Experiential response to hypnotic suggestion was predicted only by nonhypnotic suggestibility. Unexpectedly, hypnosis was found to decrease suggestibility for a substantial minority of participants.     

A new empirical angle on the variability debate: quantitative neurosyntactic analyses of a large data set from Broca's aphasia

Behavioral variation in Broca's aphasia has been characterized as boundless, calling into question the validity of the syndrome-based schema and related diagnostic methods of acquired language disorders. More generally, this putative variability has cast serious doubts on the feasibility of localizing linguistic operations in cortex. We present a new approach to the quantitative analysis of deficient linguistic performance, and apply it to a large data set, constructed from the published literature: Comprehension data of 69 carefully selected Broca's aphasic patients, tested on nearly 6000 stimulus sentences, were partitioned in different ways, and subjected to a series of analyses. While a certain amount of variability is indeed evident in the data, our quantitative analyses reveal a highly robust selective impairment pattern for the group: the patients' ability to analyze syntactic movement is severely compromised, in line with the Trace-Deletion Hypothesis. Further analyses suggest that patients' performance on no-movement sentence types exhibits less variation than on sentences that contain movement. We discuss the clinical and theoretical implications of our results.     

Connectionist psycholinguistics: capturing the empirical data

Connectionist psycholinguistics is an emerging approach to modeling empirical data on human language processing using connectionist computational architectures. For almost 20 years, connectionist models have increasingly been used to model empirical data across many areas of language processing. We critically review four key areas: speech processing, sentence processing, language production, and reading aloud, and evaluate progress against three criteria: data contact, task veridicality, and input representativeness. Recent connectionist modeling efforts have made considerable headway toward meeting these criteria, although it is by no means clear whether connectionist (or symbolic) psycholinguistics will eventually provide an integrated model of full-scale human language processing.     

Sentencing sex crimes against children: an empirical and policy analysis

This study investigated factors that contributed to the sentencing outcomes of 387 sex crimes against children who were prosecuted in a large East Coast city. Hypothesized variables that were indexed to predict sentencing included several offense, victim, and perpetrator characteristics. The findings revealed that individual victims' experiences are generally less predictive of sentencing outcomes than perpetrators' characteristics, that sentences generally tend to be lenient, that intra-family and stranger abuse seem to be taken equally seriously, and that the criminal justice system does seem to incarcerate those society is most worried about-persistent predators who abuse several children. The article ends with suggestions for further research and policy development.     

A search for parenting style: a cross-situational analysis of parental behavior

Cross-situational stability in parents' emotional warmth and guidance was studied by observing parents (N = 77, M age = 38 years) with their school-aged child in 2 dyadic problem-solving situations and in a family discussion concerning a moral dilemma. The observational data were coded by independent observers using dimensional ratings and dichotomous frequency counts as the 2 coding procedures. These procedures yielded a similar pattern of findings. Parents tended to behave consistently across situations, although the type of situation did affect the amount of emotional warmth and guidance manifested by the parent. Stability was further analyzed by means of structural equation modeling to test whether variance in parents' emotional warmth and guidance across situations was attributable to a generalized parenting style factor. A Parenting Style factor was identified that reflected the parents' child-centeredness; this factor explained, in part, parental behavior within each situation, although contextual factors also contributed to situation-specific variations from task to task.     

Juvenile psychopathy and judicial decision making: an empirical analysis of an ethical dilemma

In the burgeoning juvenile psychopathy literature, there is a debate on whether it is appropriate to apply this construct to youths. Some have suggested that labeling children/adolescents as psychopathic might result in negative consequences, such as being recommended for more restrictive placements. However, the scant evidence is equivocal. This study provides additional insights on this issue by assessing judicial perceptions and recommendations to a hypothetical case. Results indicate that psychopathy influenced perceptions of amenability (eta = .12) and dangerousness (eta = .25), and recommendations for placement (eta = .11). More specifically, youth who were both labeled as psychopathic and ascribed psychopathic traits were viewed as less amenable to treatment and more dangerous and were more likely to be recommended for a restrictive placement than youth who were neither labeled nor described as such. The effect of psychopathy on placement recommendations, however, was not significant after controlling for perceptions of dangerous. This suggests that the influence of psychopathy on judicial restrictiveness may operate through the perceived dangerousness of the youth.     

Just teasing: a conceptual analysis and empirical review

Drawing on E. Goffman's concepts of face and strategic interaction, the authors define a tease as a playful provocation in which one person comments on something relevant to the target. This approach encompasses the diverse behaviors labeled teasing, clarifies previous ambiguities, differentiates teasing from related practices, and suggests how teasing can lead to hostile or affiliative outcomes. The authors then integrate studies of the content of teasing. Studies indicate that norm violations and conflict prompt teasing. With development, children tease in playful ways, particularly around the ages of 11 and 12 years, and understand and enjoy teasing more. Finally, consistent with hypotheses concerning contextual variation in face concerns, teasing is more frequent and hostile when initiated by high-status and familiar others and men, although gender differences are smaller than assumed. The authors conclude by discussing how teasing varies according to individual differences and culture.     

The "psychosomatic family" model: an empirical and theoretical analysis

Evolution of the Family Systems Paradigm has been constrained by the dichotomy between theory building and empirical research. This article integrates these two domains by presenting a theoretical analysis of the "psychosomatic family" model as it informs and is informed by an empirical research project. Forty families of children with Crohn's disease (CD), ulcerative colitis (UC), and functional recurrent abdominal pain syndrome (RAP) were rated during standard, videotaped family interaction tasks, lunch, and interview. Laboratory scores of disease activity were associated with triangulation, marital dysfunction, and total "psychosomatic family" scores. Disease activity was not significantly correlated with enmeshment, overprotection, rigidity, conflict avoidance, or poor conflict resolution. Thus, the marital/triangulation and enmeshment/overprotection/conflict clusters may be subcomplexes of the "psychosomatic family" complex. CD, UC, and RAP groups differed in the relations among particular family patterns and disease activity. A heuristic family-psycho-somatic model is presented to facilitate future research.     

State–trait anxiety and existential fear: an empirical analysis

The Fear Checklist consists of 18 items (e.g. intimacy, loss of control, failure) a respondent checks to signify areas that have been or currently are personal sources of concern and/or apprehension. Total scores on the Fear Checklist, along with scores on each of its three subscales (Social, Control, Identity), were correlated with the state (A-State) and trait (A-Trait) anxiety scales of the State–Trait Anxiety Inventory (STAI). Both the A-State and A-Trait scales demonstrated significant association with the total Fear Checklist score (r_stat =0.48, r_trait=0.50) and each of its three subscales in a group of 135 male federal prisoners. Despite substantial overlap between the A-State and A-Trait scales (r=0.76), each achieved significant partial correlations with the total Fear Checklist score when the other scale was controlled (i.e. the A-Trait score was controlled in the state anxiety–fear relationship and the A-State score was controlled in the trait anxiety–fear relationship). These results lend preliminary support to the notion that existential fear, as measured by the Fear Checklist, is sensitive to both dispositionally (A-Trait) and situationally (A-State) based anxiety, although the majority of variance shared by the STAI and Fear Checklist was common to both STAI scales.     

Psychoanalytic reconstructions and empirical data: reciprocal contributions

Freud (1905, 1917, 1937) throughout his lifetime sought empirical scientific confirmation of the validity of his discoveries. In pursuit of this goal, he persistently emphasized the importance of establishing agreement between analytic reconstructions and the results of naturalistic child observation. The same objective lead Lichtenberg (1983), Emde (1981, 1985), and Stern (1985) to produce detailed evaluations of the impact of infant research findings on analytic developmental propositions. The present paper examines the relation among clinical reconstructions from an analysis developed through transference interpretations, empirical observations originating in the analytic patient's daughter's psychotherapy, and the results of empirical infant research that was being concurrently conducted by two of the authors. The findings from the clinical analysis of the mother, the psychotherapy of the daughter, and empirical infant research all converged on the same larger causative factor for the daughter's psychopathology--a type of maternal deprivation. Such a confluence of different sources of evidence, each identified by a different method of investigation, provides one kind of validation for psychoanalytic reconstructions, making it possible to provide that "satisfactory degree of certainty" which Freud (1937) called for in the attempt to integrate the patient's "psychic truth" with "actual" or historical truth.     

Toward an empirical taxonomy of suicide ideation: a cluster analysis of the youth risk behavior survey

In this study we examined adolescent risk behaviors, giving special attention to suicide ideation. Cluster analysis was used to classify adolescents (N = 2,730) on the Youth Risk Behavior Survey. Six clusters of adolescent risk behavior were identified. Although each risk cluster was distinct, some clusters shared overlapping risk behaviors. Suicide ideation was central to two clusters: the Silent Suicide cluster and the Multiple Risk cluster. The findings demonstrate that suicide ideation is both a unique risk behavior for some adolescents and part of a generalized risk syndrome for other adolescents. A multiple subgroup framework is recommended for understanding adolescent risk behaviors.     

Parent-adolescent conflict: an empirical review

Conflict between parents and adolescents is usually seen as a normal and necessary part of human development. However, treatment approaches for problematic conflict differ depending on several variables including theoretical orientation of the clinician. This article compares and contrasts psychoanalytic, systems, and social learning theories in order to determine the empirical support for each. In addition, several issues inherent in parent-adolescent conflict are reviewed including developmental stage theory, parenting styles, peer pressures, communications skills, marital conflict, drugs, school, and sex. Several studies and reviews of the literature are examined for common conclusions. Finally, an integrated and empirically supported model to explain parent-adolescent conflict is described.