Locke on Individuation and the Corpuscular Basis of Kinds1

In this paper, I examine the crucial relationship between Locke’s theory of individuation and his theory of kinds. Locke holds that two material objects—e.g., a mass of matter and an oak tree—can be in the same place at the same time, provided that they are ‘of different kinds’. According to Locke, kinds are nominal essences, that is, general abstract ideas based on objective similarities between particular individuals. I argue that Locke’s view on coinciding material objects is incompatible with his view on kinds. In order for two material objects to be in the same place at the same time, they must differ with respect to at least one nominal essence. However, Locke thinks that it is impossible that x and y have the same real essence but differ with respect to any nominal essence; and coinciding material objects have the same real essence. Therefore, Locke cannot hold what he in fact holds, namely that distinct material objects can be in the same place at the same time.     

A Practitioner Looks at Assessment in Marital Counseling

Marital assessment instruments can be used to enhance the effects of marital counseling. The author examines some of the more popular marital instruments available.     

GENDER AND WORKPLACE JUSTICE: A FIELD ASSESSMENT

There is extensive and persuasive documentation that the gender of an individual may bias a wide variety of managerial decisions. Potential differences in workplace justice as a function of the "defendent's" gender, however, have received little attention in organizational studies, and remain untested outside laboratory protocol. This study of 361 workplace justice proceedings in a field setting strongly suggests that men and women receive substantially different outcomes. These results are invariant across differences in the severity and viability of the contested issues.     

EFFECTS OF HUMOROUS ILLUSTRATIONS IN COLLEGE TEXTBOOKS

Written educational selections and cartoons drawn to illustrate different educational points were arranged to effect a factorial variation in (1) level of difficulty of educational material (easy, difficult) and (2) amount of humor (no humor, moderate humor, extensive humor). Students read one version, evaluated it on a number of dimensions, and were tested over the material. Pictorial humorous illustrations were found to have no effect on information acquisition and on motivation, positive effects on appeal, and negative effects on persuasibility.     

RETEST EFFECTS ON IDENTICAL AND PARALLEL FORMS IN CERTIFICATION AND LICENSURE TESTING

Examinees who take credentialing tests and other types of high-stakes assessments are usually provided an opportunity to repeat the test if they are unsuccessful on initial attempts. To prevent examinees from obtaining unfair score increases by memorizing the content of specific test items, testing agencies usually assign an alternate form to repeat examinees. Given that the use of multiple forms presents both practical and psychometric challenges, it is important to determine if unwarranted score gains occur. Most research indicates that repeat examinees realize score gains when taking the same form twice; however, the research is far from conclusive, particularly within the context of credentialing. For the present investigations, two samples of repeat examinees were randomly assigned to receive either the same test form or a different, but parallel, form on the second occasion. Study 1 found score gains of about 0.79 SD units for 71 examinees who repeated a certification examination in computed tomography. Study 2 found gains of 0.48 SD units for 765 examinees who repeated a radiography certification examination. In both studies score gains for examinees receiving the parallel test were nearly indistinguishable from score gains for those who received the same test. Factors are identified that may influence the generalizability of these findings to other assessment contexts.