Effects of Differentially Time-Consuming Tests on Computer-Adaptive Test Scores

Time limits on some computer-adaptive tests (CATs) are such that many examinees have difficulty finishing, and some examinees may be administered tests with more time-consuming items than others. Results from over 100,000 examinees suggested that about half of the examinees must guess on the final six questions of the analytical section of the Graduate Record Examination if they were to finish before time expires. At the higher-ability levels, even more guessing was required because the questions administered to higher-ability examinees were typically more time consuming. Because the scoring model is not designed to cope with extended strings of guesses, substantial errors in ability estimates can be introduced when CATs have strict time limits. Furthermore, examinees who are administered tests with a disproportionate number of time-consuming items appear to get lower scores than examinees of comparable ability who are administered tests containing items that can be answered more quickly, though the issue is very complex because of the relationship of time and difficulty, and the multidimensionality of the test.     

Implementing Effective Group Work for Mathematical Achievement in Primary School Classrooms in Hong Kong

The Hong Kong Education Bureau recommends that primary school pupils’ mathematical achievement be enhanced via collaborative discussions engendered by group work. This pedagogic change may be hindered by Confucian heritage classroom practices and Western-dominated group work approaches that predominate in Hong Kong. To overcome these obstacles, we introduced a relational approach to group work in a quasi-experimental study. Our sample included 20 teachers randomly allocated to experimental (12) and control (8) conditions and their 504 mathematics pupils (aged 9–10). The relational approach focused on the development of peer relationships in a culturally appropriate manner and was implemented over 7 months. Pupils were pre-/post-tested for mathematical achievement and systematically observed, and the teachers were assessed for subject knowledge and pre-/post-tested for pedagogic efficacy. Analysis of covariance (ANCOVA) and hierarchical linear modeling (HLM) results show enhanced mathematical achievement, supported by improved peer-based communication skills and time-on-task for the experimental pupils. Experimental teachers raised their pedagogic efficacy. Results indicate the potential of the relational approach for boosting academic achievement via enhanced child-peer-teacher interaction and the need to reassess the role of peer-based latent collectivist learning in Confucian heritage classrooms.     

Application of cluster analysis to the study of piagetian stages of intellectual development

The purpose of this study was to reexamine Piagetian stages by way of the application of cluster analysis and to seek information concerning the occurrence of stages and the influence of different tasks and gender on cluster patterns. Six Piagetian tasks were administered to 182 males and 176 females ages 9 through 18 years old. Analysis and interpretation of the data suggested the following conclusions: (1) Piagetian stages exist as a general sequence through which intellectual development progresses; however, the males in the study conformed more to Piagetian stages than did the females; (2) deviation from Piagetian stages was influenced by gender and the type of task; (3) lack of synchronization of substages across several tasks suggested that Piagetian tasks were more situation-specific than indicated by Piaget, and it also helped to explain why strong, correlations among tasks at a given level have been difficult to obtain; (4) for the males, the greatest discontinuity occurred between substages IIIA and IIIB, not between IIB and IIIA as stated by Piaget; and (5) the group of 13-year-old females tended to cluster with the 17- and 18-year-old female groups, but it was not known why.     

An Investigation of Broad and Narrow Personality Traits in Relation to General and Domain-Specific Life Satisfaction of College Students

Based on a sample of 532 undergraduates at a Southeastern U.S. university, Big Five and narrow personality traits were examined in relation to a measure of satisfaction with specific domains of college experience (College Satisfaction) and a measure of General Life Satisfaction. Four of the Big Five traits—Agreeableness, Conscientiousness, Emotional Stability and Extraversion—as well as the narrow traits of Aggression, Career Decidedness, Optimism, Self-Directed Learning, Sense of Identity, and Work Drive were positively, significantly related to both satisfaction measures. Results of hierarchical regression analyses showed that the Big Five traits accounted for 45% of Life Satisfaction variance with Sense of Identity contributing an additional 7%, and College Satisfaction, 6%. It was suggested that who students become in college and how satisfied they are with different aspects of collegiate experience may be primarily determined by who they are when they enter college. Similarities were noted to findings of personality traits and academic performance, job performance, and adult career and life satisfaction. Implications were discussed in terms of Chickering and Reisser’s major vectors for college development as well as for admissions decisions and enhancing student-environment fit in advising, orientation, counseling, and career planning, among others.     

Maladaptive Perfectionism,Adult Attachment,and Self‐Esteem in College Students

Extending an earlier study that found high self‐esteem to modify the impact of otherwise maladaptive perfectionism on depression, the current study used adult attachment theory to explore the link between perfectionism, self‐esteem, and depression in college students. Results indicated that self‐esteem buffered the effects of maladaptive perfectionism on depression and that adult attachment security moderated the association between perfectionistic self‐doubt and self‐esteem. Counseling implications of these findings are discussed.     

Effects of changeover contingencies on auditory stimulus control of two responses

Rats were exposed to a procedure in which auditory stimuli signaled which of two levers was associated with a variable-interval 60-sec schedule of food presentation. Presses on the lever that was not associated with the variable-interval schedule (“errors”) postponed availability of reinforcement on the other lever by either a fixed number of responses or a fixed amount of time. Increasing the number of responses by which “errors” postponed food availability enhanced the level of stimulus control, and. alter a relatively high degree of control had been achieved, reduction of the requirement had no effect. Control experiments ruled out extended exposure to the discrimination procedure as a factor in the increase in stimulus control and suggested that the time of introduction of a changeover contingent is an important determinant of its effect.