Psychosocial Attributes and Life Experiences of Disadvantaged Minority Mothers: Age and Ethnic Variations

This study examined age and ethnic differences in psychosocial factors among hispanic (n = 210) and black (n = 73) low-income mothers within 2 days after delivery. The sample included 45 black and 99 hispanic adolescents (less than 19 years) and 139 adult controls (greater than or equal to 20 years) giving birth on the service ward at a large metropolitan hospital, excluding mothers and infants with high parity or adverse perinatal conditions. Multivariate and univariate analyses, with parity covaried, revealed age effects including earlier menarche, more school grade retention, and more perceived social support among teens. No age differences were found in child-rearing attitudes, self-esteem, or depressive symptoms. Black mothers reported more social support, higher self-esteem, and less strict child-rearing attitudes than hispanics. Analyses within the hispanic sample revealed Dominican/Puerto Rican group differences in measures of family structure and child-rearing attitudes, but only small differences in social support. Ethnocultural differences between blacks and hispanics and between the two hispanic subgroups are considered in relation to the process of acculturation.     

Student note-taking related to university examination performance

Student note-taking is an almost universal activity among university students, yet few naturalistic studies have examined relationships between note-taking practices and subsequent examination performance. Complete sets of notes on an introductory psychology course, involving 75 lectures presented by ten instructors, were obtained from nineteen male and nineteen female students. Notes on ten selected lectures (one per instructor) were analysed, and information derived about class attendance and the quantity, organization, and presentation of the notes. Variables based on this information were then correlated with performance on two three-hour final examination papers (one multiple-choice, one essay). High correlations were found between the quantity of notes and examination performance. Surprisingly, these correlations increased in subsamples consisting of those students who attended class most diligently. The correlations involving the multiple-choice examination tended to be higher than those involving the essay examination, most probably because of wider sampling of lecture content and a more factual orientation in the multiple-choice examination. The results appear to conflict with the advice given in student study guides, many of which suggest that students should be very selective and concise in their note-taking.     

Developing and sustaining an educative mentoring model of STEM teacher professional development through collaborative partnership

In this paper, we present details of a partnership undertaken by four universities with field-based, alternative STEM teacher preparation programs and a large urban school district to provide ongoing professional support for teachers serving as mentors for individuals preparing for careers in high-poverty schools. We also present key findings related to our implementation of an educative mentoring professional learning community (PLC) as a professional development (PD) model for these mentors. Our analysis reveals that mentors as well as candidates identified the PD program as addressing their specific interests and concerns, and that they were regularly and deeply engaged with key activities that were part of each session’s agenda. These findings signal how key elements of PD workshops can contribute to creating and sustaining a local but replicable PLC utilizing an educative mentoring model to support mentors and the future teachers whom they support.     

Effects of expected vs. unexpected proximal US preexposure on taste-aversion learning

Animals were first conditioned to expect lithium treatment following exposure to one taste solution (the CS+) and to expect no drug treatment following exposure to another flavor (the CS?). All subjects then received a saccharin taste-aversion conditioning trial. In Experiment 1, this conditioning trial was preceded 0, 1, 2, 4, or 6 h earlier by exposure to the CS+ flavor for independent groups. The CS+ exposure attenuated saccharin aversion learning if it occurred immediately before the saccharin conditioning trial but not if it occurred 1 h or more before conditioning. In Experiment 2, the saccharin conditioning trial was preceded 3 or 4.5 h earlier by a lithium injection. This proximal US preexposure injection was either unannounced (Li) or preceded by exposure to the CS+ (CS+Li) or the CS? (CS?Li) stimuli. The US preexposure attenuated saccharin aversion learning in all cases. However, the interference effect was less when the preexposure injection was expected (CS+Li) than when it was unexpected (CS?Li). This outcome could not be explained in terms of direct effects of the CS+ and CS? stimuli on the saccharin conditioning trial, and shows that the proximal US preexposure effect is a function of not only the drug dosage and preexposure interval, but also the anticipation of the drug pretreatment.     

Visualizing Without Vision at the Microscale: Students With Visual Impairments Explore Cells With Touch

Science instruction is typically highly dependent on visual representations of scientific concepts that are communicated through textbooks, teacher presentations, and computer-based multimedia materials. Little is known about how students with visual impairments access and interpret these types of visually-dependent instructional materials. This study explored the efficacy of new haptic (simulated tactile feedback and kinesthetics) instructional technology for teaching cell morphology and function to middle and high school students with visual impairments. The study examined students’ prior experiences learning about the cell and cell functions in classroom instruction, as well as how haptic feedback technology impacted students’ awareness of the 3-D nature of an animal cell, the morphology and function of cell organelles, and students’ interest in the haptic technology as an instructional tool. Twenty-one students with visual impairment participated in the study. Students explored a tactile model of the cell with a haptic point probe that allowed them to feel the cell and its organelles. Results showed that students made significant gains in their ability to identify cell organelles and found the technology to be highly interesting as an instructional tool. The need for additional adaptive technology for students with visual impairments is discussed.This material is based upon work supported by the National Science Foundation under Grant Numbers 0354578 and 0411656     

Interviewing young sexual abuse victims with anatomically correct dolls

Two groups of children were interviewed with a structured format to elicit their responses to sexually anatomically correct dolls. Significant differences were found between the responses of children who had not been referred for suspected sexual abuse and those who had. Nonreferred children (n = 25) revealed very few behaviors indicative of abuse whereas referred children (n = 25) demonstrated significantly more sexually related behaviors when presented with the dolls. Of the age groups studied (2-6 years), 3 year olds were the most responsive to the dolls, while older children tended either to reveal their experiences or to become very nonresponsive. The authors argue for the use of structured interview techniques with use of the anatomical dolls and the collection of normative comparison data relative to the evaluation of suspected sexual abuse.     

The concept map as a research and evaluation tool: Further evidence of validity

This study sought further evidence of the concurrent validity of concept mapping as a research and evaluation tool in science education. Specifically, the study examined the extent to which differences exist in the concept maps of advanced college biology majors (N = 25) and beginning nonmajors (N = 25) in the domain of mammals. Furthermore, it explored whether these differences are reflected in the way subjects assign class membership as revealed in a card sorting task. The results indicate that concept maps of biology majors are structurally more complex than those of nonmajors and that differences in the structural complexity and organizational patterns depicted in concept maps are reflected in the underlying dimensions used to assign class membership. Together, these findings suggest that the concept map provides a theoretically powerful and psychometrically sound tool for assessing conceptual change in experimental and classroom settings.     

Electronic encyclopedias

Summary This examination of electronic encyclopedias has led to several interesting observations that may be made for each encyclopedia. TheCompton’s product is considered to be the product most accessible by lower level elementary school students. Its audio and visual features are considered most important for purchase decision-making and turn out to be the most useful features after the purchase. BothWorld Book andGrolier’s are comparable in the suggestion of a minimum grade level appropriate for use (at the fourth or fifth grade levels), suggesting that reading is not the only ability needed to operate either product to its fullest extent. For bothWorld Book andGrolier’s, the boolean searching, keyword searching, quick reference and quality of the screen display features were important purchase considerations. Hardware compatibility and price, while rated important, may prove to be the factors that determine whether an electronic encyclopedia is purchased at all (since all products evaluated were roughly the same price and all ran on IBM hardware). The majority ofWorld Book users considered only the dictionary feature to be useful after purchase.Grolier’s users considered boolean and keyword searching, menu searching, and help screens to be most useful.