Disabilities Among Norwegian Students Found Eligible for Special Education

The prevalence of different disabilities in a sample of 780 students found eligible for special education in Norway is presented in this article. Each student was judged in relation to 10 different disabilities, and the frequencies of the different disabilities were reported. Almost all students had more than one problem or disability. It is argued that statistics related to students with disabilities that ascribe each student only to one category of disability do not provide a correct picture of the prevalence of different disabilities. The most common disabilities reported in this study were psychosocial problems, intellectual disability, and communication disorders that were found in about 40 to 50% of the students. About one third of the students were reported to have attention deficit disorder or physical disabilities, 25% experienced social stress outside school, and 20% had medical problems. Hearing and visual impairments are reported for about 5% and 6% of the sample respectively.     

校门边的申请者

去自己理想的大学读书是每个学生的梦想,了解学校的学术环境、人文环境,乃至地理环境是每一个学生在入学前想做的事情,本文介绍了美国耶鲁大学的部分特点和校园的传统,希望读者朋友能够藉此了解一点儿美国大学校园文化。     

Theory of educational art: A reply

Educational technology research and development -     

Second-order conditioning: Different outcomes in fear and eyelid conditioning

Second-order conditioning has been frequently observed with the fear response but not with the eyelid response. The present experiments manipulated the temporal relationship between the second-order and first-order stimulus on second-order conditioning trials. Our results indicated that a trace second-order procedure is not effective with either response system. Second-order fear conditioning was most prominent when the second-order CS terminated at the onset of the first-order CS. This arrangement, however, did not produce second-order eyelid CRs. In eyelid conditioning, the second-order CS appears to inhibit responding to the first-order CS which immediately follows it.     

Fostering house mice onto rats and deer mice: Effects on response to species odors

Newborn wild house mice (Mus musculus) were fostered upon maternal conspecifics, prairie deer mice (Peromyscus maniculatus bairdi) or laboratory rats (Rattus norvegicus). Male subjects were weaned into individual cages, in which they remained until testing commenced. At 35 days of age, subjects were given a four-choice test in which they had the opportunity to investigate tunnels scented with clean wood chips or with chips soiled by an adult male conspecific, deer mouse or rat. Compared to theMus-nursed andPeromyscus-nursed mice,Rattus-nursed mice were more active during the test and less reluctant to investigate theRattus-scented tunnel. These results were replicated in a two-choice test (Mus- vs.Rattus-scented tunnels) that included a group of mice fostered onto conspecifics, but withRattus scents present in the maternity cage throughout the nursing period. Early exposure to the scent ofRattus had no significant effects on the responses ofMus-nursed mice to the scent ofRattus.     

Using Research to Improve the Cost Effectiveness of Early Intervention Programs

Since the implementation of Public Law 99457, the number of children served by early intervention programs has increased substantially. This article describes the d e s of advocacy and science in contributing to that expansion. A biosocial systems model of early development is used to explain how comparative experimental research can help to improve the cost effectiveness of early intervention programs. Examples of the benefits of such research are taken from the other articles reported in this issue of Early Education and Development.