Email use in elementary school: an analysis of exchange patterns and content

Email was embedded in a project in design and technology education in elementary school. During four lessons children worked in groups on building a flying object. These groups communicated through email with groups of children from another school. The analyses of the emails, as viewed from distributed cognition theory, focus on the exchange patterns and content. Two characteristic exchange patterns are stacking and compounding. In stacking emails are sent out quickly enough to afford a "just-in-time" exchange of information. In compounding the emails transcend lessons. An "old" section of the email reacts to the partner's email about a previous lesson. A "new" section deals with the current lesson.
Question-answer exchanges accounted for only about 15% of the communications. Connected discourse with explicit or implicit references to the partner's email was likewise scarce. Groups mainly connected to each other through adoption, leading to shared scenarios of "We tell you our story—You tell us yours". The conclusion discusses the impact of the task on the children's communication. Among others, a precise definition and teaming of the task is deemed necessary to favour embedded email use. Because the genre of email use in elementary school is yet to be defined the authors caution against imposing many constraints on what children write to each other.     

Who succeeds in advanced mathematics and science courses?

Few students (particularly few girls) currently choose to take their Final School Examination (FSE) in advanced mathematics, chemistry and physics, a combination of subjects that is the best preparation for a science‐oriented study in higher education. Are these subjects attainable by more students than is currently the case? This study examined 6033 students in upper secondary education, including 720 students who took their FSE in advanced mathematics, chemistry and physics. The results show that the latter group (and in particular the girls in that group) had higher scores on math ability than students who chose other examination subjects. Regression analyses demonstrated the relative importance of math ability and achievement motivation for attainment in these science subjects. However, an expected positive effect of homework time as well as possible mediating and moderating effects of the predictors could not be confirmed.     

Setting Standards for English Foreign Language Assessment: Methodology,Validation, and a Degree of Arbitrariness

Cut‐scores were set by expert judges on assessments of reading and listening comprehension of English as a foreign language (EFL), using the bookmark standard‐setting method to differentiate proficiency levels defined by the Common European Framework of Reference (CEFR). Assessments contained stratified item samples drawn from extensive item pools, calibrated using Rasch models on the basis of examinee responses of a German nationwide assessment of secondary school language performance. The results suggest significant effects of item sampling strategies for the bookmark method on cut‐score recommendations, as well as significant cut‐score judgment revision over cut‐score placement rounds. Results are discussed within a framework of establishing validity evidence supporting cut‐score recommendations using the widely employed bookmark method.     

Shift of meaning and students' alternative concepts

The purpose of the study was to establish a relationship between the shift of meaning of the concept oxidation that has taken place during the historical development, and students' alternative concepts. First Examination Board papers were examined. The result enabled us to specify the research question. In the main part of the study, multiple‐choice items were given to 3074 senior high school students. They were asked to select the correct answer and to justify their choices. Additional illustrative material was collected in four interviews with senior high school students. The analysis of the data revealed the mechanism that some students used to interpret the reactions from NO₃ ^? to NO and from CO₃ ^2? to CO₂. Students' interpretations were based on the concept of a transfer of oxide ions. The mechanism explains some correct and incorrect answers to the problems. The interview study also revealed that students were reluctant to accept water as a Brønsted base. It is suggested to use students' alternative concepts about oxidation reactions in class, helping them to better understand the half‐reaction method. Students should also understand that the meaning of the concept oxidation has shifted in the course of time. In the area of acid‐base reactions, further research is needed.     

Determination of the prevalence of anabolic steroids, stimulants, and selected drugs subject to doping controls among elite sport students using analytical chemistry

Drug abuse by adolescents has been investigated in various surveys that reported correlations between age, gender, and activity. However, none of these studies included chemical analyses to help substantiate the statements of participants. In the present study, the urine specimens of 964 students (439 females, 525 males; mean age 22.1 years, s = 1.7), who applied to study sports sciences at university, were assessed for anabolic steroids, stimulants, and selected drugs prohibited in sports. In total, 11.2% of the urine specimens provided contained drugs covered by doping controls. The most frequently detected compound was the major metabolite of tetrahydrocannabinol (9.8%) followed by various stimulants related to amphetamine and cocaine (1.0%). Indications of anabolic steroid use were found in 0.4% of urine samples but originated from contraceptives containing norethisterone. The present study provided unambiguous data on the status quo of drug (ab)use by adolescents hoping for a career related to elite sport or sports sciences. No use of anabolic steroids was detected. However, evidence for stimulants and tetrahydrocannabinol administration was obtained, although not reported by any participant, which highlights the issue of under-reporting in surveys based solely on questionnaires.