Recent research suggests that 9-month-old infants tested in a modified version of the A-not-B search task covertly imitate actions performed by the experimenter. The current study examines whether infants also simulate actions performed by mechanical devices, and whether this varies with whether or not they have been familiarized with the devices and their function. In Experiment 1, infants observed hiding and retrieving actions performed by a pair of mechanical claws on the A-trials, and then searched for the hidden toy on the B-trial. In Experiment 2, infants were first familiarized with the experimenter and the claws but not their function. In Experiment 3, infants were familiarized with the function of the claws. The results revealed that search errors were at chance levels in Experiments 1 and 2, but a significant proportion of the infants showed the A-not-B error in Experiment 3. These results suggest that 9-month-old infants are less likely to simulate observed actions performed by mechanical devices than by human agents, unless they are familiarized with the function of the devices so that their actions are perceived as goal-directed. 相似文献
Based on career construction theory, the current research examined individual and contextual predictors for the professional competence of Chinese undergraduates majoring in social work (N = 270). Results showed that career concern and career curiosity predicted social work students' professional competence, with these relations mediated by the calling in social work. It was also found that the positive effect of calling on professional competence was stronger among students who perceived a lower level of career-oriented learning environment. The corresponding moderated mediation model was supported such that the indirect effects of career concern and career curiosity on professional competence were stronger among students who perceived a lower level of career-oriented learning environment. These findings carry implications for research on career construction theory, as well as career education and career counseling practices. 相似文献
This paper provides results on a form of adaptive testing that is used frequently in intelligence testing. In these tests, items are presented in order of increasing difficulty. The presentation of items is adaptive in the sense that a session is discontinued once a test taker produces a certain number of incorrect responses in sequence, with subsequent (not observed) responses commonly scored as wrong. The Stanford-Binet Intelligence Scales (SB5; Riverside Publishing Company, 2003) and the Kaufman Assessment Battery for Children (KABC-II; Kaufman and Kaufman, 2004), the Kaufman Adolescent and Adult Intelligence Test (Kaufman and Kaufman 2014) and the Universal Nonverbal Intelligence Test (2nd ed.) (Bracken and McCallum 2015) are some of the many examples using this rule. He and Wolfe (Educ Psychol Meas 72(5):808–826, 2012. https://doi.org/10.1177/0013164412441937) compared different ability estimation methods in a simulation study for this discontinue rule adaptation of test length. However, there has been no study, to our knowledge, of the underlying distributional properties based on analytic arguments drawing on probability theory, of what these authors call stochastic censoring of responses. The study results obtained by He and Wolfe (Educ Psychol Meas 72(5):808–826, 2012. https://doi.org/10.1177/0013164412441937) agree with results presented by DeAyala et al. (J Educ Meas 38:213–234, 2001) as well as Rose et al. (Modeling non-ignorable missing data with item response theory (IRT; ETS RR-10-11), Educational Testing Service, Princeton, 2010) and Rose et al. (Psychometrika 82:795–819, 2017. https://doi.org/10.1007/s11336-016-9544-7) in that ability estimates are biased most when scoring the not observed responses as wrong. This scoring is used operationally, so more research is needed in order to improve practice in this field. The paper extends existing research on adaptivity by discontinue rules in intelligence tests in multiple ways: First, an analytical study of the distributional properties of discontinue rule scored items is presented. Second, a simulation is presented that includes additional scoring rules and uses ability estimators that may be suitable to reduce bias for discontinue rule scored intelligence tests.
Research regarding prevention strategies for Hispanic youth stress the importance of family interventions because of the particular
importance of family as a protective factor within the Hispanic community. Starting in 1995, the Center for Substance Abuse
Prevention conducted the National Cross-Site Evaluation of High Risk Youth Programs, a 5-year drug and alcohol prevention
study with a sample of approximately 10,500 youth, including nearly 3,000 Hispanic youth. Youth were surveyed regarding their
alcohol use patterns and risk and protective factors, with several measures of family relationships, including family connectedness,
family supervision, and parental attitudes toward their child's alcohol use. Analyses indicate that family factors are highly
linked to alcohol use among Hispanics, particularly among Hispanic females. Longitudinal growth curve analyses indicate that
improving the connections that young Hispanic females have to their parents can have positive long-term effects on delaying
or reducing their alcohol use.
This evaluation was conducted under the direction of Dr. Soledad Sambrano, Ph.D. of the Center for Substance Abuse Prevention
under contract #2777-95-5002 with EMT Associates, Inc. and ORC Macro. The views expressed herein represent the opinions and
analyses of the individual authors and may not necessarily reflect the opinions, official policy, or position of the U.S.
Department of Health and Human Services, the Public Health Service, the Substance Abuse and Mental Health Service Administration,
or the Center for Substance Abuse Prevention. 相似文献