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111.
Margolin G Oliver PH Gordis EB O'Hearn HG Medina AM Ghosh CM Morland L 《Clinical child and family psychology review》1998,1(4):195-213
Despite considerable discussion in the literature about the advantages of observational research and the relative benefits of different coding systems and strategies, little is written about the actual implementation of this assessment strategy. This paper presents an overall framework as well as the essential components involved in collecting (selection of task, setting, unit of analysis, and coding system) and coding (transcribing, selecting and training coders, transforming data, and analyzing reliability) of observational data. To achieve success with observational methods, we emphasize several issues, including (a) the research question as the motivator for all decisions, (b) the interrelatedness of tasks, and (c) the implications of decisions early in the process for later stages of analysis and interpretation. Investigators are encouraged to communicate the details of their observational and coding procedures so that these methods are readily accessible for purposes of replication and comparison. 相似文献
112.
113.
Siu -luen Luk Geoffrey Thorley Eric Taylor 《Journal of psychopathology and behavioral assessment》1987,9(2):173-182
A group of children who were rated as grossly overactive by a clinician was compared with a matched control group on various measurements of their behavior in a clinical interview situation and in a psychological test situation. An observational schedule was developed to discern those behaviors related to the concept of overactivity. These behaviors were operationally defined to enable reliable replication. The experimental group showed an excess in quantity of mechanically recorded movement as well as an increase in a cluster of behaviors including distractibility and disinhibition. Situational effects on those symptoms were noted. The symptoms were best observed in a semistructured clinical interview situation.This project was carried out while S. L. Luk was a research worker at the Institute of Psychiatry, London, supported by the University of Hong Kong. The authors express sincere thanks to Dr. S. Sandberg for her help in the reliability study, to Dr. J. Bacon-Soong for his statistical advice, and to Miss Ivy Wong for secretarial help.The coding scheme is available from the author. 相似文献
114.
Oliver C. Mudford Ivan L. Beale Nirbhay N. Singh 《Journal of applied behavior analysis》1990,23(3):323-331
The representativeness of behavioral observation samples with durations of less than the whole time of interest was investigated. A real-time recording system was developed to quantify the behavior of 5 profoundly mentally retarded physically handicapped adult students in an institutional training setting. Behavior was observed using six mutually exclusive and exhaustive categories during 2.5-hr observation sessions. Sample observation sessions with durations ranging from 15 to 135 min were computer simulated from the whole-session (150-min) records. It was found that the representativeness of these samples, when compared to whole-session records, was a function of the relative duration of the behavioral categories and of sample duration. The occurrence of relatively high-duration behaviors (lasting for more than 50% of the session) was estimated to within 20% error by samples of less than 60 min, but low-duration behaviors (1 to 3% of the session) were inadequately quantified even from 135-min samples. Increasing irregularity of bouts of behavior in the low-duration behaviors is suggested as the cause of the functions obtained. Implications of the findings for applied behavior analysis are discussed, with the recommendation that the adequacy of observational session durations be empirically assessed routinely. 相似文献
115.
Johannes Rojahn Robert C. Kanoy 《Journal of psychopathology and behavioral assessment》1985,7(2):99-120
The measurement error of time-sampling observation systems, used to estimate the frequencyof behavioral events, was analyzed by means of a five-factor design, computer simulation experiment. The first three factors represented response parameters: the relative frequency and duration of the behavior and the pattern of response distribution. For each combination of frequency, pattern, and duration, five simulated behavior events were generated within a simulated observation period of 900 sec. A total of 21 different time-sampling systems was employed. As a fourth factor three different observe and record lengths were included (6, 12, and 60 sec). In addition, there were seven different ratios of “observe” to “record” interval length (5∶1, 3∶1, 2∶1, 1∶1, 1∶2, 1∶3, and 1∶5) representing the fifth factor. Thus, 21 time-sampling systems scanned a total of 120 different behavior simulations from 24 types of behavior parameter combinations. The data were analyzed by means of a five-factor (2 × 3 × 4 × 3 × 7) analysis of variance with repeated measures on two factors. The study demonstrated that time sampling leads to high average measurement errors, which are determined by complex interrelationships among a variety of variables. Choosing a time-sampling system arbitrarily may lead to highly erroneous data. It was also shown, however, that time-sampling systems have the potential to yield very accurate results. An empirical selection procedure for time-sampling intervals is proposed to minimize measurement error. Exemplary tables are presented from which time-sampling parameters can be chosen given that the rate, duration, and pattern of occurrence of a behavior to be observed are known. 相似文献
116.
Professional athletes, compared to beginners, can better predict the outcome of sport-related observed movements, via mirror motor-system modulations (motor resonance). Furthermore, motor-system inhibition occurs when observing other people experiencing pain (pain resonance). Here we investigated whether observing sport-related actions, whose outcome can lead or not to a painful experience, results into different prediction performances depending on expertise and history of injury. Experiment 1 revealed that professional skiers, relative to beginners, show greater prediction accuracy but slower reaction times. Experiment 2 revealed that, among professional skiers, those previously injured, compared to uninjured ones, are slower in predicting the outcome of the observed action when it actually leads to an injury. We hypothesize that such results could be explained by an automatic activation of both motor and pain resonance mechanisms in the onlooker, inducing a sort of experience-dependant freezing response while observing actions likely leading to an injury. 相似文献
117.
We evaluated the effectiveness of a stimulus pairing observation procedure to facilitate tact and listener relations in preschool children learning a second language. This procedure resulted in the establishment of most listener relations as well as some tact relations. Multiple-exemplar training resulted in the establishment of most of the remaining relations. The implications for the use of these procedures to establish simple vocabulary skills in children are discussed. 相似文献
118.
Pedestrians belong to the most vulnerable road users and in order to reduce accidents and fatality rates, research on pedestrian crossing behavior is necessary. However, findings on pedestrians’ crossing, gaze and gesture behavior are heterogeneous and sometimes contradictory. Different methods that are used to assess pedestrian behavior might provide an explanation. In a field study, we measured pedestrian behavior in real traffic by making use of instructed and non-instructed pedestrians, combining and comparing objective and subjective data. Instructed pedestrians deliberately interacted with a research vehicle in urban traffic and filled in 2687 self-report questionnaires about experienced scenarios from their point of view. Interaction scenarios focused on instructed pedestrians either crossing or not crossing the street when the research vehicle passed by. In addition, 75 h of video-recorded interaction scenarios with instructed and non-instructed pedestrians were gathered using a camera placed on the inside of the research vehicle. Self-report and video data were matched (N = 644) and evaluated regarding instructed pedestrians’ crossing, gaze and gesture behavior. Substantial agreement was found between self-reported and video-observed data for crossing action and gesture occurrence and somewhat lower agreement for gaze occurrence. Furthermore, the crossing, gaze and gesture behavior of instructed pedestrians (N = 1423 situations) and non-instructed pedestrians (N = 369 situations) was compared and no major discordance was reported. Therefore, instructed pedestrians can be an externally valid method to assess crossing behavior while implications are given on how self-reported and observational data can mutually supplement each other. 相似文献
119.
120.
Britta Lorey Tim Naumann Sebastian Pilgramm Carmen Petermann Matthias Bischoff Karen Zentgraf Rudolf Stark Dieter Vaitl Jörn Munzert 《Brain and cognition》2013
Jeannerod (2001) hypothesized that action execution, imagery, and observation are functionally equivalent. This led to the major prediction that these motor states are based on the same action-specific and even effector-specific motor representations. The present study examined whether hand and foot movements are represented in a somatotopic manner during action execution, imagery, and action observation. 相似文献