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81.
There have been many discussions of how Type I errors should be controlled when many hypotheses are tested (e.g., all possible comparisons of means, correlations, proportions, the coefficients in hierarchical models, etc.). By and large, researchers have adopted familywise (FWER) control, though this practice certainly is not universal. Familywise control is intended to deal with the multiplicity issue of computing many tests of significance, yet such control is conservative--that is, less powerful--compared to per test/hypothesis control. The purpose of our article is to introduce the readership, particularly those readers familiar with issues related to controlling Type I errors when many tests of significance are computed, to newer methods that provide protection from the effects of multiple testing, yet are more powerful than familywise controlling methods. Specifically, we introduce a number of procedures that control the k-FWER. These methods--say, 2-FWER instead of 1-FWER (i.e., FWER)--are equivalent to specifying that the probability of 2 or more false rejections is controlled at .05, whereas FWER controls the probability of any (i.e., 1 or more) false rejections at .05. 2-FWER implicitly tolerates 1 false rejection and makes no explicit attempt to control the probability of its occurrence, unlike FWER, which tolerates no false rejections at all. More generally, k-FWER tolerates k - 1 false rejections, but controls the probability of k or more false rejections at α =.05. We demonstrate with two published data sets how more hypotheses can be rejected with k-FWER methods compared to FWER control. 相似文献
82.
Dietary restraint is a prospective risk factor for the development of binge eating and bulimia nervosa. Although many women engage in dietary restraint, relatively few develop binge eating. Dietary restraint may increase susceptibility for binge eating only in individuals who are at genetic risk. Specifically, dietary restraint may be a behavioral exposure factor that activates genetic predispositions for binge eating. We investigated this possibility in 1,678 young adolescent and adult same-sex female twins from the Minnesota Twin Family Study and the Michigan State University Twin Registry. Twin moderation models were used to examine whether levels of dietary restraint moderate genetic and environmental influences on binge eating. Results indicated that genetic and nonshared environmental factors for binge eating increased at higher levels of dietary restraint. These effects were present after controlling for age, body mass index, and genetic and environmental overlap among dietary restraint and binge eating. Results suggest that dietary restraint may be most important for individuals at genetic risk for binge eating and that the combination of these factors could enhance individual differences in risk for binge eating. 相似文献
83.
Klahr AM Rueter MA McGue M Iacono WG Burt SA 《Journal of abnormal child psychology》2011,39(5):683-694
Prior studies have indicated that the relationship between parent-child conflict and adolescent antisocial behavior is at
least partially shared environmental in origin. However, all available research on this topic (to our knowledge) relies exclusively
on parent and/or adolescent informant-reports, both of which are subject to various forms of rater bias. As the presence of
significant shared environmental effects has often been attributed to rater bias in the past (Baker et al. Journal of Abnormal Psychology 16:219–235, 2007; Bartels et al. Journal of the American Academy of Child and Adolescent Psychiatry 42:1351–1359, 2003, Twin Research 7:162–175, 2004; Hewitt et al. Behavior Genetics 22:293–317, 1992), it would be important to confirm that findings of shared environmental mediation persist when even examining (presumably
more objective) observer-ratings of these constructs. The current study thus examined the origins of the relationship between
parent-child conflict and adolescent acting-out behavior, as measured using both observer-ratings and various informant-reports.
Participants included 1,199 adopted and non-adopted adolescents in 610 families from the Sibling Interaction and Behavior
Study (SIBS). Results indicated that parent-child conflict consistently predicts acting-out behavior in adopted adolescents,
and moreover, that this association is equivalent to that in biologically-related adolescents. Most importantly, these findings
did not vary across parent- and adolescent-reported or observer-ratings of parent-child conflict and acting-out behavior.
Such findings argue strongly against rater bias as a primary explanation of shared environmental mediation of the association
between parent-child conflict and adolescent antisocial behavior. 相似文献
84.
Jack M. I. Leggett Jennifer S. Burt Annemaree Carroll 《Applied cognitive psychology》2019,33(5):759-770
Review is often more effective when it involves deliberate memory retrieval. However, this advantage may depend on a high rate of retrieval success; students who are less capable with the material may be better served by another activity. In our study, year 9 geography students listened to factual information, then reviewed some of it with a retrieval practice and feedback activity, some with a reading activity and left some unreviewed. We also manipulated the presence of hints during review—hints can affect the rate of retrieval success during practice and are relatively easy for teachers to provide. When tested 1 week later, most students showed a benefit of retrieval practice, even those who had performed poorly during review. There was also some evidence that hints improved learning when they made retrieval practice easier. Our findings suggest that retrieval practice, properly implemented, is advantageous for students of all ability levels. 相似文献
85.
86.
Dotterer Hailey L. Burt S. Alexandra Klump Kelly L. Hyde Luke W. 《Journal of abnormal child psychology》2021,49(11):1431-1445
Research on Child and Adolescent Psychopathology - Callous-unemotional (CU) traits (i.e., callousness, low empathy, shallow affect) have been conceptualized as a downward extension of the... 相似文献
87.
Isaac Burt 《Journal of Creativity in Mental Health》2018,13(3):275-287
Research indicates that media-influenced decisions potentially assist in leading college-aged students to make negative interpersonal choices, resulting in poor intimate relationships (Storey and McDonald, 2013). However, many mental health counselors inadvertently ignore the effect of media when they work with college-aged clients. To speak to the need for mental health counselors to become aware of the issue, this study examined the phenomenological perspective of eight students. This qualitative study’s results indicate that media portrayal of successful couples and unrealistic expectations affect intimate relationship decision-making. 相似文献
88.
Mihaela Chraif Daniela Dumitru Mihai Aniţei Vlad Burtăverde Teodor Mihăilă 《Current psychology (New Brunswick, N.J.)》2016,35(1):29-38
The research investigated the psychometric properties and the discriminant validity of the English version of the Questionnaire for the Assessment of Aggressive Driving Behavior (AVIS). Study 1 assessed the psychometric properties of the instrument. Internal consistency ranged from 0.77 to 0.92. Exploratory factor analysis did not support the original five factor structure, Instrumental Aggression and Acting Out being unified in a single factor. Following the confirmatory factor analysis a version with 26 items and 3 factors was obtained. Inter-scale correlations showed that the dimensions of the AVIS are inter-correlated. Study 2 verified the discriminant validity of the English version of the AVIS by testing the relationships between the AVIS dimensions and the DAX (Driving Anger Expression Inventory) dimensions. The results showed good discriminant validity, the dimensions of the two instruments being uncorrelated. In conclusion, the findings contribute to the development of the driving aggression construct by adding new dimensions to it. 相似文献
89.
There is mounting evidence that physical aggression and nonaggressive, rule‐breaking delinquency constitute two separable though correlated subtypes of antisocial behavior. Even so, it remains unclear whether these behavioral subtypes have meaningfully different interpersonal correlates, particularly as they are subsumed within the same broad domain of antisocial behavior. To evaluate this, we examined whether hostile perceptions of others (assessed via exposure to a series of neutral unknown faces) were linked to level and type of antisocial behavior aggression vs. rule‐breaking, and moreover, whether this association persisted even when also considering the common association with negative affect (as manipulated via written recollection of one's best and worst life experiences). Analyses revealed that aggression, but not rule‐breaking, was uniquely tied to hostile perceptions of others. Furthermore, this association persisted over and above the common association of both hostile perceptions and aggression with negative affect (at both trait and state levels). Such results provide additional support for clinically meaningful differences between the behavioral subtypes of aggression and nonaggressive rule‐breaking and for the independent role of hostile perceptions in aggressive behavior. Aggr. Behav. 35:453–461, 2009. © 2009 Wiley‐Liss, Inc. 相似文献
90.