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1.
The role of the school in the control of smoking among adolescents is explored. Incidence and trends of smoking among youth are discussed and health consequences of smoking are explored. The role of the school in smoking prevention, cessation, and regulation also is described. Innovative educational strategies to prevent smoking are reviewed and model programs are described. School-based smoking cessation programs are reviewed and suggstions are made for the development of local programs. School policies on smoking are given. Recommendations are given for a comprehensive school program to control smoking.  相似文献   

2.
Many theoretical models of cognition are based on the assumption that cognitive processes and representations are hierarchically structured. The issue of whether these hierarchies are mere constructs or conceptual tools, or whether they have psychological and neurological reality, is addressed. Theories across a range of cognitive domains are reviewed and four kinds of evidence are considered: behavioural, neuropsychological, ontogenetic, and logical. Logical constraints are identified in relation to operating principles of control, access, economy and analogy. The general characteristics of hierarchical structures and their advantages and disadvantages are discussed.  相似文献   

3.
Different similarity relations on sets are introduced, and their logical properties are investigated. Close relationships are shown to hold between similarity relations that are based on symmetrical difference and operators of belief contraction that are based on relational selection functions. Two new rationality criteria for minimal belief contraction, the maximizing property and the reducing property, are proposed.  相似文献   

4.
Behavior systems are particular organizations of cognitive structures that are called behavior mechanisms: perceptual, central, and motor. Thus, behavior systems are defined here in structural terms and not in terms of their functional characteristics. In young animals, behavior mechanisms often develop independently of functional experience, though specific types of experience are usually necessary for integrated systems to develop. These concepts are illustrated here by the dust-bathing, feeding, aggressive, and sexual systems of the fowl, which are considered to be typical of behavior systems in other species. Aspects of neural development are examined and found to facilitate our understanding of a wide range of developmental phenomena, such as critical periods and irreversibility. Finally, various examples of classical conditioning and instrumental learning are analyzed in terms of the type of structures involved, and they are related to general developmental processes.  相似文献   

5.
Some computational and statistical techniques that can be used in the analysis of event-related potential (ERP) data are demonstrated. The techniques are fairly elementary but go one step further than do simple area measurement or peak picking, which are most often used in ERP analysis. Both amplitude and latency measurement techniques are considered. Principal components analysis (PCA) and methods for electromyographic onset determination are presented in detail, and Woody filtering is discussed briefly. The techniques are introduced in a nontechnical, tutorial review style. One and the same existing data set is presented, to which the techniques are applied, and practical guidelines for their use are given. The methods are demonstrated against a background of theoretical notions that are related to the definition of ERP components.  相似文献   

6.
《Ecological Psychology》2013,25(1):29-36
Stoffregen (target article, this issue) argues that events and affordances are qualitatively distinct properties; that affordances are animal and observer referential, whereas events are not; and that only affordances are perceived and events are not. In this commentary, I argue to the contrary-that events are perceived as well as affordances and that animals do not perceive disembodied properties anymore than they could perceive propertyless things. I argue that events are not properties but are substantial, spatiotemporal things that have properties. Events can exhibit affordances that must vary in scope to support the perceptually guided temporal evolution of behaviors.  相似文献   

7.
Components of a successful substance abuse prevention program are discussed. Substance use and abuse trends in school-aged populations are briefly reviewed. Prevention program strategies deemed desirable through recent research efforts are incorporated in describing a model program. Educational approaches and substance abuse intervention strategies are differentiated. Program planning guideliens are presented and discussed. These guidelines are designed to establish and maintain school and community support for prevention programs.  相似文献   

8.
Kaufman  Gayle 《Sex roles》1999,41(5-6):439-458
This study examines the portrayal of men infamily roles, as fathers and husbands, on televisioncommercials. A content analysis of commercials airedduring football, daytime, and prime time is carried out. The sample size of characters is 944, mostof whom are middle-class, non-Hispanic whites. Men withchildren but no spouse are more likely to be shownduring football than are women with children but no spouse. Advertisements for computers andelectronics are more likely to include men with childrenbut no spouse than women with children but no spouse.Men appearing alone with children are more likely to be shown outside than women alone withchildren. Men are less likely to be portrayed cooking,cleaning, washing dishes, and shopping than women. Menwithout spouses are more likely to be shown with boys and less likely to be shown with infants thanwomen without spouses. Men are infrequently shown takingcare of a child and are never shown caring for girls.However, men are often shown teaching, reading, talking, eating, and playing with children. Tothe extent that men are shown as more involved in familylife, they still tend to depend largely on knowledge andactivities that are stereotypically male.  相似文献   

9.
A variety of court decisions and laws relevant to malpractice and liability of school psychologists are presented. Terms are defined and examples of faulty psychological testing, defamation, withholding information, and inferred incompetence are provided. Suggestions regarding litigation and legal defenses are made and issues related to professional liability insurance are discussed.  相似文献   

10.
The emotional schema model proposes that individuals differ in their interpretations, evaluations, and strategies about emotional experience. Fourteen dimensions that are related to problematic strategies of emotion regulation are identified. Specific interventions for several of these strategies are identified, and examples of implementation are described. Finally, problematic schemas about emotions—both on the part of patients and therapists—are described, and interventions for addressing these in therapy are provided.  相似文献   

11.
12.
Three fundamental types of causal relations are those of necessity, sufficiency, and necessity and sufficiency. These types are defined in contexts of categorical variables or events. Using statement calculus or Boolean algebra, one can determine which patterns of events are in support of a particular form of causal relation. In this article, we approach the analysis of these forms of causality taking the perspective of the analyst of empirical data. It is proposed using Configural Frequency Analysis (CFA) to test hypotheses about type of causal relation. Models are proposed for two-variable and multi-variable cases. Two CFA approaches are proposed. In the first, individual patterns (configurations) are examined under the question whether they are in support of a particular type of causal relation. In the second, patterns that are in support are compared with corresponding patterns that are not in support. In an empirical example, hypotheses are tested on the prediction of sustainability of change in dietary fat intake habits.  相似文献   

13.
Friction between counseling personnel and administrators affects the work of each. Background reasons for difficulties in working together are explored. Four areas offering possible remedial measures are examined: the nature of compromise, problems in communication, emotional health, and a framework for understanding behavior. Aspects of a program model are provided. Suggestions are made for specific areas in which data are needed and proposals for method are offered.  相似文献   

14.
Choice reaction times are measured for three values of a priori signal probability with three well-practiced observers. Two sets of data are taken with the only difference being the modality of the reaction signal. In one set of conditions it is auditory, in the other, visual. The auditory reaction times are faster than the visual and in addition several other differences are noted. The latency of the errors and correct responses are nearly equal for the auditory data. Error latencies are nearly 30% faster for the visual data. Non-stationary effects, autocorrelation between successive latencies and non-homogeneous distribution of errors, are clearly evident in the visual data, but are small or non-existent in the auditory data. The data are compared with several models of the choice reaction time process but none of the models is completely adequate.  相似文献   

15.
自我意识情绪:人类高级情绪   总被引:2,自引:0,他引:2  
自我意识情绪是个体在具有一定自我评价的基础上,通过自我反思而产生的情绪。自我意识情绪与基本情绪既有区别又有联系。自我表征、自我觉察、自我评价过程的卷入是自我意识情绪产生的重要条件。对个体行为进行自我调节、服务于人际交流、人际互惠和个体心理内部需要是自我意识情绪具有的主要功能。自我意识情绪是随着认知的发展而逐渐形成和发展的,并会受到文化的影响。自我报告、非言语行为编码技术、言语报告和行为编码、神经成像技术是自我意识情绪的主要研究方法。自我意识情绪的普遍性和特殊性需要进一步跨文化研究的验证  相似文献   

16.
Wendy M. Yen 《Psychometrika》1983,48(3):353-369
Test scores that are not perfectly reliable cannot be strictly equated unless they are strictly parallel [Lord, 1980]. This fact implies that tau-equivalence can be lost if an equipercentile equating is applied to observed scores that are not strictly parallel. Seventy-two simulated testing conditions are produced to simulate equating tests with different difficulties and discriminations. Number-correct and trait metrics are examined. When an equipercentile equating is applied to these data, locally biased (i.e., non-tau-equivalent) results are produced for tests of unequal difficulty. Differences between the criteria of tau-equivalence and equipercentile equivalence are discussed.  相似文献   

17.
In published research and in unpublished doctoral dissertation research, fathers are underrepresented in the investigation of child and family functioning. A number of possible explanations for this underrepresentation are discussed, including researchers'use of sexist theories that either directly or indirectly result in mother blaming, family demographics that suggest fathers are less present in the lives of their children when compared with mothers, and researchers'perceptions of fathers'unwillingness to participate in research. In order to encourage nonsexist family research that includes both mothers and fathers, recommendations are provided to increase the inclusion of fathers in child and family research. Specifically, researchers are encouraged to always provide parallel investigations of paternal factors when maternal factors are investigated. Researchers are also encouraged to investigate similarities as well as differences between mothers and fathers in relation to their children's functioning. Implications for the involvement of fathers in prevention and clinical interventions are discussed. In order to move beyond non-sexist research, feminist research issues are also raised.  相似文献   

18.
There are two general methods of cross-validation: (a) empirical estimation, and (b) formula estimation. In choosing a specific cross-validation procedure, one should consider both costs (eg. inefficient use of available data in estimating regression parameters) and benefits (eg. accuracy in estimating population cross-validity). Empirical cross-validation methods involve significant costs, since they are typically laborious and wasteful of data, but under conditions represented in Monte Carlo studies, they are generally not more accurate than formula estimates. Consideration of costs and benefits suggests that empirical estimation methods are typically not worth the cost, except in a limited number of cases in which Monte Carlo sampling assumptions are not met in the derivation sample. Designs which use multiple samples to estimate the cross-validity of a single regression equation are clearly preferable to single-sample designs; the latter are never expected to be more accurate than formula estimates and thus are never worth the cost. Multi-equation designs are more accurate than single equation designs, but they appear to estimate the wrong parameter, and thus are difficult to interpret.  相似文献   

19.
Recognition of affixed words and the word frequency effect   总被引:9,自引:0,他引:9  
Three experiments are reported in which the word frequency effect is used as a diagnostic for determining whether affixed words coming from the same stem are stored together or separately in the lexicon. Prefixed words are examined in the first experiment, inflected words in the second and third. In the first two experiments, two types of word are compared where the words in each condition are matched on surface or presented frequency but are varied on the frequency of their stems or base frequency. It is found that lexical decision times are influenced by base frequency, thus indicating that words related by affixation are stored together in the lexicon. The third experiment, however, demonstrates that when base frequency is held constant and surface frequency is varied, lexical decision times are influenced by surface frequency. The results are accounted for by a model of word recognition whereby frequency has its effect at two different stages of the recognition process.  相似文献   

20.
An overview of the various uses of microcomputers in the elementary reading program. Classroom instruction programs are described. Diagnostic, record keeping, and planning functions of microcomputers are explained. Program evaluation guides are suggested and sources of evaluations and reviews are given. Resources available for classroom teachers who wish to begin with microcomputers in reading are provided.  相似文献   

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