“| ticipants will concentrate on theory, others on data, and still others on case histories supporting or refuting hypotheses that have been advanced to date in economics and anthropology regarding the contexts and limitations of entrepreneurship, for example, entrepreneurship is meaningful only in terms of West European capitalism. Non-Western economic behavior and practices require other concepts; entrepreneurship is said to be nonexistent or to be performed fer, with special emphasis on the role of mediation. Postman’s address will be directed at an evaluation of the present status of two-factor theory, and in particular current interpretations of the process of unlearning. Murray Glanzer, Endel Tulving, Edwin Martin, James Greeno, John Ceraso, Geoffrey Keppel, Jack Richardson, and Leo J. Postiman. by marginal “brokers” in nonliterate peasant subcultures The Emotionally Disturbed Child in the Public School the operation of the principle of limited good. That type Arranged by Dale B. Harris (Pennsylvania State University). The problems of exceptional children have become particularly acute with the rapid expansion of the child population in the 1940’s following a decade of depression in which attention was given to economy and to subsistence needs of people rather than to educational and welfare needs of special groups. Consequently, in the 50's, we found ourselves completely unprepared to handle the populations of children with special needs. A number of crash programs of education and welfare have been adopted. Many of these have been established at the federal level as a device for urging states to undertake their rightful because of indigenous or “pre-industrial” value systems or of entrepreneurship develops very sophisticated forms in non- and semi-literate lower class segments of society, in contrast to its weak elaboration among the elite. and reflects the assimilative character of “transitional” society. The symposium is structured in such a way as to per- mit as much exchange among participants on cross-cultural cases as the occasion may warrant. It will be divided into three sessions, each of which will focus on a specific area. The fourth will have to do mainly with terminological problems, theory, the implications of entrepreneurship in the public domain, and the role of entrepreneurship in policy for accelerating socio-economic change. John Middleton, Richard P. Schaedel, John Harris, Charles Frank, Marvin Miracle, and Gloria Marshall. Manning Nash, Anthony Leeds, Tony Bonaparte, Calvin P. Blair, and Victor Goldkind. Richard Lambert, Waiter Neale, Arafin Siregar, and George Weightman. Edward LeClair, George Dalton, Stefan Robock, and Warren Dean. Everett W. Hagan, PSYCHOLOGY (D responsibilities. The emotionally disturbed child has recently become the object of such action. This category of children, long known to psychiatry and clinical psychology, poses sev- eral special problems when aids are devised for it through the agency of the public school. First, there is the problem of criteria for selection for special attention. In the second place, there exists no body of literature pertaining to special facilities, programs, and curricula for the education of these groups within the context of the educational insututuion. Such modes of “re-education” as exist have been developed principally within the psychiatrist’s purview and Transfer, Interference, and Forgetting (30 Dec.) the special facilities of the mental hygiene clinic. In the Arranged by Leo J. Postman (University of California, Berkeley). their responsibilities to this group, a wide variety of privately sponsored attempts have arisen to reeducate these children. Thus, the problem of certifying such agencies in the public interest exists as a significant one at the third place, because schools have been slow to pick up The purpose of this symposium is to discuss current theoretical and experimental approaches to the analysis of transfer and interference in verbal learning. Since interference theory includes a widely applied interpretation of the forgetting process, the papers will be addressed to problems of both acquisition and of retention. A variety of theoretical positions and experimental programs will be represented. Tulving’s work centers on the role of subjective organization, that is, the structure imposed by the learner on the materials to be recalled. Ceraso’s studies emphasize the sources of interference which come into play during tests of recall. Greeno’s experiments are car- ried out within the framework of a mathematical model of the associative process. Martin’s investigations are designed to specify the role of stimulus factors in transfer, as exemplified by the discrimination and recognition of stimuli in successive tasks. Keppel is concerned with the application of the principles of the two-factor theory of interference which attributes retention loss to the unlearning of old associations during the acquisition of new ones and the competition between available responses at the time of recall. Richardson is engaged in a systematic analysis of the component mechanisms of positive trans8 DECEMBER 1967 present time. James Tomkins, Gabriel Simches, Shirley Cohen, Dale B. Harris, Wilbert W. Lewis, J. David Colfax, and Irving L. Allen. Attitude Change: Recent Developments in Experimental Research Arranged by Irving L. Janis (Yale University). In the first talk. a series of recent experiments which were designed to test several explanatory hypotheses that might account for the conflicting results from prior experi- ments in forced compliance will be discussed. In these experiments. people are induced to play a role or to write essays in which they take a stand that goes counter to, their own position. The new series of experiments specified the conditions under which the amount of monetary incentive will be positively or negatively related to the amount of attitude change. . The second talk will deal with a series of experiments that were stimulated by the discovery of an anomalous Sequence effect: it was repeatedly found that in face-to1357