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…

This study was designed to determine the relationship between children's reflection-impulsivity and responses to a forced choice of a toy for play (labelled as impulsivity) and the length of continued play with the selected toy (labelled as latency). A group of twenty four-year-olds, male and female, were observed making a choice between toys. The…

This study investigates the reactive effects of observers on interactions between teachers (undergraduates and mothers) and toddlers in a preventive educational program. Findings indicate that the presence of an observer differentially affects interactional patterns in the home. More specifically, undergraduates and toddlers are relatively…

An experiment was performed to show that infants perceive auditory and visual stimuli within a common space and that they perceive the sound as an attribute of the visual object. Subjects were 22 infants aged 3 to 5 months. Each infant was presented with a toy that moved in a small arc from side to side of a small window at the rate of one arc per…

This article illustrates how a cluster analysis can be conducted, validated, and interpreted. Data normed for a behavioral assessment instrument with 14 scales on a nationally representative sample of U.S. school children were utilized. The discussion explores the similarity index, cluster method, cluster typology, cluster validity, cluster…

The present study examined whether in humans the generalized matching law described the relation between relative responding and relative drug intake by humans under concurrent variable interval variable interval (conc VI VI) schedules of drug reinforcement. Methadone-maintained patients, stabilized on 80 mg per day of methadone, were recruited…

An evaluation was made of the methodology and findings presented in "Television and Antisocial Behavior. Field Experiments," by Stanley Milgram and R. Lance Shotland (New York: Academic Press, 1973). In the book, seven experiments were reported, all concerned with antisocial behavior toward a medical charity. Three episodes of Medical…

Criteria and methods for developing a taxonomy for different situational categories are presented. (CK)

This paper outlines and analyzes the important methodological and experimental design considerations uncovered by recent inquiries into the effects of alcohol on human behavior. The major issues discussed include: (1) the need and technique for complete manipulation of subjects' beverage expectancies in conjunction with alcohol and placebo…

Partial and methodologically questionable replications of the Luria experiments on the child's verbal regulation of his motor behavior have led to results and conclusions contradictory to Luria's findings. An error in the methodology of two of these replications is discussed as the reason for a new investigation of Luria's hypothesis. Several…