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201.
Jesse W. Johnson Dennis D. Munk Toni Van Laarhoven Alan C. Repp Carol M. Dahlquist 《Behavioral Interventions》2003,18(1):63-85
The present study investigated applications of the disequilibrium model of reinforcement in typical classroom contexts with students perceived by their teachers as being difficult to motivate. The disequilibrium model states that reinforcing effects are produced when access to any response (task) is constrained so that an individual cannot meet an (unconstrained) baseline level for that response (task). The implication of the model is that low‐probability (low‐preference) responses can be constrained and used as reinforcers, a seeming contradiction to the common practice of using a high‐probability response to reinforce increases in a low‐probability response. The present study investigated the effects of disequilibrium schedules of reinforcement with six students with several disabilities in classroom contexts. The specific research questions were (i) whether disequilibrium schedules would produce reinforcing effects if both the instrumental and contingent tasks were of moderate to low preference for the student; (ii) how effects of disequilibrium schedules would compare with those of a teacher‐generated contingency; and (iii) what effects disequilibrium schedules would have with students who engage in non‐task responding during the baseline period. Results suggest that disequilibrium schedules are effective when used with moderate to low‐preference tasks. Results of the comparison with teacher‐generated contingencies were mixed. Results do suggest that the presence of higher levels of non‐task responding during the baseline period may affect subsequent effectiveness of disequilibrium schedules calculated from the baseline. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献
202.
203.
This study examines bias (constant error) in spatial memory in an effort to determine whether this bias is defined by a dynamic
egocentric reference frame that moves with the observer or by an environmentally fixed reference frame. Participants learned
the locations of six target objects around them in a room, were blindfolded, and then rotated themselves to face particular
response headings. From each response heading, participants used a pointer to indicate the remembered azimuthal locations
of the objects. Analyses of the angular pointing errors showed a previously observed pattern of bias. More importantly, it
appeared that this pattern of bias was defined relative to and moved with the observer—that is, was egocentric and dynamic.
These results were interpreted in the framework of a modified category adjustment model as suggesting the existence of dynamic
categorical (nonmetric) spatial codes. 相似文献
204.
We describe the structure for implementation of the wraparound process within a multi-tiered system of school wide positive
behavior support (SWPBS) to address the needs of the 1–5% of students with complex emotional/behavioral challenges. The installation
of prerequisite system features that, based on a 3 year demonstration process, we consider critical to full operation of the
Tier 3 wraparound intervention within a system of SWPBS is also described. We include examples of system implementation benchmarks
that occur concurrently with student outcome data and are logically linked to full operation and sustainability of wraparound
implementation. Challenges surrounding implementation and proposed advancements are also discussed. 相似文献
205.
Recent investigations of loudness change within stimuli have identified differences as a function of direction of change and power range (e.g., Canévet, Acustica, 62, 2136–2142, 1986; Neuhoff, Nature, 395, 123–124, 1998), with claims of differences between dynamic and static stimuli. Experiment 1 provides the needed direct empirical evaluation of loudness change across static, dynamic, and hybrid stimuli. Consistent with recent findings for dynamic stimuli, quantitative and qualitative differences in pattern of loudness change were found as a function of power change direction. With identical patterns of loudness change, only quantitative differences were found across stimulus type. In Experiment 2, Points of Subjective loudness Equality (PSE) provided additional information about loudness judgments for the static and dynamic stimuli. Because the quantitative differences across stimulus type exceed the magnitude that could be expected based upon temporal integration by the auditory system, other factors need to be, and are, considered. 相似文献
206.
Perrin CJ Miller N Haberlin AT Ivy JW Meindl JN Neef NA 《Journal of applied behavior analysis》2011,44(3):463-474
We examined college students' procrastination when studying for weekly in-class quizzes. Two schedules of online practice quiz delivery were compared using a multiple baseline design. When online study material was made available noncontingently, students usually procrastinated. When access to additional study material was contingent on completing previous study material, studying was more evenly distributed. Overall, the mean gain in percentage correct scores on weekly in-class quizzes relative to pretests was greater during contingent access than during noncontingent access conditions. 相似文献
207.
The present study assessed frontostriatal mediated memory functions in children with ADHD (N=12) and healthy control participants (N=12) using two tests of conditional associative learning (i.e., object and spatial) that shared similar stimulus-response association structures but that differed in terms of the demands placed upon strategic processes. Children with ADHD displayed normal performance on the object learning task but were impaired on the spatial learning task that placed greater demands on internally derived strategic processes. Secondary analyses further indicated that this strategic processing impairment cannot be attributed specifically to perseverative or working memory errors but rather appears to be related to a more general inability to maintain a high degree of consistency in responding across trials. Although the results of this study must be interpreted in light of the small sample sizes, they suggest that ADHD does not produce a basic deficit in acquiring stimulus-response associations previously shown to be associated with basal ganglia dysfunction. Rather, these findings suggest that the impaired conditional associative learning performance of children with ADHD is attributable to deficits in strategic processes previously been found to be dependent upon the integrity of the prefrontal cortex. 相似文献
208.
A pilot outcome study explored associations between psychospiritual variables and body esteem in adolescent girls at a Roman Catholic high school by examining the influence of The Imago Dei Experience (TIDE), an intervention program the first author designed. Perception of God's loving acceptance accounted for significant variance in weight and appearance body esteem; religious crisis accounted for significant variance in weight body esteem. Lack of significant changes in body esteem from pretest to 18‐month follow‐up suggested the TIDE program may have buffered the typical increase in body dissatisfaction over that period of time for adolescent girls. The authors recommend counselors explore qualities of God image and religious crisis with adolescent girls. 相似文献
209.
210.
Brittany M. Mathes Katherine A. McDermott Sarah A. Okey Ana Vazquez Ashleigh M. Harvey Jesse R. Cougle 《Behavior Therapy》2019,50(1):15-24
The most common symptom of obsessive-compulsive disorder (OCD) is contamination fear. Feelings of contamination can be provoked through contact with a physical contaminant, referred to as contact contamination (CC), as well as in the absence of one, referred to as mental contamination (MC). Prior research indicates that CC and MC are distinct, and MC may interfere with treatment for CC. However, no study to date has examined how MC may be associated with responses to physical contaminants and treatment response for CC. This study examined the relationships between CC and MC in a sample of individuals with elevated contamination symptoms (N = 88), half of whom met diagnostic criteria for OCD. Participants engaged in three sessions of exposure and response prevention (ERP) for CC and completed self-report measures and behavioral tasks assessing CC and MC at pretreatment, posttreatment, and follow-up. As hypothesized, at pretreatment, MC was positively associated with reactivity to physical contaminants, even after participants washed their hands. ERP for CC was associated with unique changes in CC and MC across self-report and behavioral measures, and greater pretreatment MC predicted greater posttreatment CC, though this effect was evident in only one of two CC measures. Additionally, specificity analyses indicated changes in MC were independent of changes in disgust propensity, a related construct. Pretreatment disgust propensity also predicted treatment outcome, though the addition of pretreatment disgust propensity as a covariate reduced the relationship between pretreatment MC and posttreatment CC to nonsignificance. Results suggest MC plays an important role in the manifestation and treatment of CC symptoms and may represent a manifestation of disgust proneness. Theoretical and clinical implications are discussed. 相似文献