Individuals with Prader-Willi syndrome (PWS) are at risk for excessive daytime sleepiness (EDS) and disruptive behavior. This pilot study explores temporal characteristics of EDS and severe disruptive behavior across time of day and day of week in seven individuals with PWS (aged between 33 and 49 years) of whom five were matched to controls.…

The authors suggest that line graphs that average response frequency over long periods obscure the major rate changes that indicate sources of behavioral control. A scatter plot can make patterns of responding identifiable and, in turn, suggest environmental features that occasion undesirable behavior. Use of scatter diagrams is illustrated in…

In a nonrandomized or observational study, propensity scores may be used to balance observed covariates and trajectory groups may be used to control baseline or pretreatment measures of outcome. The trajectory groups also aid in characterizing classes of subjects for whom no good matches are available and to define substantively interesting groups…

In the current study, momentary time sampling (MTS) and partial-interval recording (PIR) were compared to continuous-duration recording of stereotypy and to the frequency of self-injury during a treatment analysis to determine whether the recording method affected data interpretation. Five previously conducted treatment analysis data sets were…

A methodology that will allow teachers to assess a child's behavior problems within both Disruptive (D) and Nondisruptive (ND) contexts was developed, and a questionnaire that would attend to the issues of Manageability and Contagion, as well as Tolerance and Severity, was prepared. Initial questionnaire research using the Devereux Elementary…

The study presents a methodology for collecting detailed naturalistic data on preschool teachers' instructions and children's compliance as well as a descriptive analysis of variables related to instruction rate and compliance probability. The study also illustrates the effects of context on teacher and child behavior. (Author/DB)

Analyzed limitations of empirical research models in terms of ability to reflect an interactional perspective on suicidal behavior. A new research model was developed. Findings indicated such real-life behaviors cannot be understood by recourse to individual differences variables alone or environmental variables alone. (Author/BEF)

This article describes the prevalence of different types of functional assessment and analysis procedures reported in articles in the "Journal of the Association for Persons with Severe Handicaps" (JASH) involving individuals exhibiting problem behaviors. The most frequently reported functional assessment approach was the use of structured direct…

The paper presents an overview of an ethological approach to the study of abnormal human behavior and a review of research using ethological approaches (with an emphasis on autism research). Ethology is defined as the study of behavior as it occurs in its natural habitat. The four types of questions ethologists ask about behavior, such as what is…

The author conducted two studies of disturbed adolescents in an effort to specify the precursors of severe psychopathology in adulthood, particularly the schizophrenic spectrum of disorders. In the prospective study 35 disturbed adolescents were followed for a five-year period from age 16 to 21. Numerous measures were taken on the target…

This paper on the behavioral manifestations of child sexual abuse first reviews previous research concerning child variables, parent/family variables, sexual abuse in combination with other maltreatment, and physiological outcomes. Criteria for future research are offered and specific research needs in the areas of developmental progression,…

This report describes an investigation to determine the frequency and consistency with which elementary school children are identified by their teachers, over a period of years, as presenting behavior problems within the school setting. A large sample of urban white children, measured on a number of school-related variables (SES, IQ, school…

Many children are targets of verbal and physical abuse or social ostracism at some point during their school careers, and a minority are repeatedly victimized by their peers. This volume brings together leading investigators to present the latest psychological research on chronically victimized children and adolescents. The book's introduction…

The paper describes a study of deviant behavior among students attending a high school in Texas. All students in the study attended a sociology class taught by a very strict teacher whose rules of behavior conflicted with students' peer group behavior expectations. Participant observation of student behavior in class and interviews with individual…