Behavioral and Emotional Problems in Young Preschoolers: Cross-Cultural Testing of the Validity of the Child Behavior Checklist/2-3

The cross-cultural validity of the Child Behavior Checklist for Ages 2-3 (CBCL/2-3) was tested in three Dutch samples of children referred to mental health services, from the general population, and from a twin study. Six scales were derived from factor analyses and labeled Oppositional, Aggressive, and Overactive, which constituted a broadband Externalizing grouping; Withdrawn/Depressed and Anxious, which constituted a broadband Internalizing grouping; and Sleep Problems. Internal consistencies of the scales, their test-retest reliabilities, interparent agreement, discriminative power, predictive relations with problem ratings 2 years later, and relations to other instruments designed to measure general development and behavior problems were adequate, and highly comparable to psychometric properties in American samples. It was concluded that across languages and cultures behavioral/emotional problems of young preschoolers may be adequately assessed with the CBCL/2-3.     

Applications of a computer algebra system for teaching bivariate relationships in statistics courses

Maple, a computer algebra system, is used in undergraduate psychology courses to promote students’ conceptual learning of basic principles associated with bivariate relationships. Maple’s symbolic computation, graphic displays, and animation capabilities are used along with other classroom activities to study concepts related to (1) correlation coefficients, scatterplots, and regression lines, (2) factors that affect the magnitude of sample correlations, (3) inferential tests, and (4) prediction error. For each of the 15 Maple procedures, students select population correlation values and examine the effects of different values on computer-generated graphical representations of scatterplots, regression lines, and sample correlations. The procedures are described and examples of exercises to support their use are provided.     

SCIENCE AND RELIGION: SEEKING A COMMON HORIZON

Abstract. The thought of Bernard Lonergan provides an epistemological position that is both true to the exigencies of modern science and yet open to the possibility of God and revealed religion. In this paper I outline Lonergan's "transcendental method," which describes the basic pattern of operations involved in any act of human knowing, and discuss how Lonergan uses this cognitional theory as a basis for an epistemological position of critical realism. Then I explain how his approach handles some philosophical problems raised by classical and modern science and show how his thought provides an intelligible link between the scientific and religious horizons.     

Conditions affecting retention test performance: A developmental study

Developmental studies of retention have yielded remarkably diverse results: however, it is widely assumed that retention ability increases with age. This study examined this assumption by investigating some of the conditions that might affect retention test performance in third graders and tenth graders. The most important results were the absence of age differences in proportionalized short-term retention, despite substantial differences in the number of items learned, and significant age differences in long-term retention only between groups that had received a different number of learning trials. These and other results suggest that age differences in retention test performance occur only when age is confounded with degree of learning. In short, there do not appear to be any age differences in retention per se.     

Ethical principles and cultural integrity in health care delivery: Asian ethnocultural perspectives in genetic services

The tradition of Western thought is not always ubiquitous when working within the context of different ethnocultural populations, particularly that of Asian culture, and often poses ethical quandaries for health care professionals engaged in genetic services. For example, understanding the Asian ethnocultural perspective of patient autonomy, informed consent, and nondirective counseling from the Western perspective may be inappropriate and compromise cultural integrity and the delivery of effective genetic services because: (1) A distinction exists between the role of Asian (collective) autonomy vs. Western (individual) autonomy in the decision-making process. (2) The medical model is complementary to Asian expectations and respect of authority and may result in an uninformed consent to genetic professional's recommendations. (3) Misinterpretations of the normative decision-making process, misconceptions of normalcy, and the limits of tolerance of nondirective counseling may result in less effective treatment and compliance. Therefore, we suggest that acknowledging the impact of ethnicity and culture on ethical principles as applied in genetic services is essential in the assessment and delivery of ethically and culturally appropriate health care.     

Properties of the recombination of one-dimensional motion signals into a pattern motion signal

We have examined the human ability to determine the direction of movement of a variety of plaid patterns. The plaids were composed of two orthogonal sine-wave gratings. When the plaid components are of unequal spatial frequency or sometimes of unequal contrast, observers judge the direction of movement incorrectly. In terms of the two-stage model of Adelson and Movshon (1982), these errors may result from either a misjudgment in the perceived speeds of each of the components or a failure in the combination of one-dimensional-component movements into a coherent direction of motion of the two-dimensional plaid pattern, or both. A comparison of the perceived direction of motion of plaids with the relative perceived-speeds of the plaid component gratings suggests that both failures occur, but in different circumstances The relative perceived speed of the plaid components was measured with a spatial and a temporal forced-choice technique, the former leading to larger differences. Our results support the notion that the visual system decomposes a moving plaid into oriented components and subsequently recombines the component motions.     

STRATEGIES TO INCREASE EXERCISE-REPORT CORRESPONDENCE BY BOYS WITH MODERATE MENTAL RETARDATION: COLLATERAL CHANGES IN INTENTION-EXERCISE CORRESPONDENCE

Correspondence between verbal and nonverbal behavior in an exercise room was taught to 4 13-year-old boys diagnosed with moderate mental retardation. Participants were asked prior to each exercise session which exercise machine(s) they intended to use. No contingencies on stating intentions (promising) were applied. Following the exercise session, participants were asked to say (report) which machine(s) they had used. Following the baseline condition, do-report correspondence training was introduced sequentially across participants. During do-report correspondence training, accurate reporting was reinforced. High rates of both do-report and promise-do correspondence were observed. Data were analyzed via a multiple baseline across subjects design and contingency-space analysis. Results are discussed with regard to observed changes in promise-do correspondence subsequent to observed changes in do-report correspondence.