In this article, the author analyzes the intertemporal consistency of high school grades as predictors of the academic performance of business administration students over a 2-year period by using data from a university in Germany. This study shows how students' average high school grades and a range of other factors are regressed on the students'…

Progress monitoring is a method of keeping track of children's academic development. Progress monitoring requires frequent data collection (i.e., weekly) with technically adequate measures, interpretation of the data at regular intervals, and changes to instruction based on the interpretation of child progress. This report presents two cases that…

This article talks about the approval given by the Education Department to 16 states that requested changes to accountability plans under the No Child Left Behind Act. Federal officials had sent decision letters to these states. Another 31 states are awaiting such letters, although many have received oral approvals or denials. This article…

This study looks at the syllable onset interval (SOI) patterning in Taiwan Mandarin spontaneous speech and its relationship to discourse and syntactic units. Monologs were elicited by asking readers to tell stories depicted in comic strips and were transcribed and segmented into Discourse Segment Units (Grosz & Sidner, 1986), clauses, and…

Forgetting in long-term memory, as measured in a recall or a recognition test, is faster for items encoded more recently than for items encoded earlier. Data on forgetting curves fit a power function well. In contrast, many connectionist models predict either exponential decay or completely flat forgetting curves. This paper suggests a…

Because of criticisms leveled at statistical hypothesis testing, some researchers have argued that measures of effect size should replace the significance-testing practice. We contend that although effect-size measures have logical appeal, they are also associated with a number of limitations that may result in problematic interpretations of them…

Unless the sample encompasses a substantial portion of the population, the standard error of an estimator depends on the size of the sample, but not the size of the population. This is a crucial statistical insight that students find very counterintuitive. After trying several ways of convincing students of the validity of this principle, I have…

In this article, the author proves a theorem about polynomial zeros, but the focus is on how the theorem is integrated into a QuickBASIC computer program, and how that program answers the questions of the theorem--a unification of mathematics and computer programming. For a given polynomial, how can one overcome assorted problems in finding zeros…

In this article, a heterogeneous latent growth curve model for modeling heterogeneity of growth rates is proposed. The suggested model is an extension of a conventional growth curve model and a complementary tool to mixed growth modeling. It allows the modeling of heterogeneity of growth rates as a continuous function of latent initial status and…

Guided by Self-Determination and associated theories, we examined whether adolescent (N=324, Mage=15, 52% female) competence (academic engagement and achievement) were supported by relationships at school and school fit. Aspects of relationships and school fit that were measured included adolescents' perceptions of each context as promoting…

Objective: To assess whether parental psychological and physical factors and child factors measured in the first year of life were associated with recurrent abdominal pain (RAP) in children at age 6 3/4 years. Method: A longitudinal cohort study (the Avon Longitudinal Study of Parents and Children), followed 8,272 children from pregnancy to age 6…

Indicates a reasonable range of individual differences in the dark interval threshold (DIT). Reveals a significant interaction between DIT and illumination level in their effect on reading accuracy. Finds that children with a short DIT read more accurately in high rather than low illumination and that this performance was reversed for long DIT…

Illustrates some of the problems of second language (French) acquisition by adult Spanish-speaking immigrants in a natural setting through analysis of the European Project data (Perdue, 1982) in three areas: acquisition and use of the over-generalized marker "c'est"; acquisition of reference to time; and acquisition of reference to…

The period of time for which a college is reaccredited, a hotly debated issue at the annual meeting of the New England Association of Schools and Colleges, is discussed. Ten-year terms have been shortened, putting a burden on institutions least able to afford the lengthy and costly process. (MLW)

In Phase 1, 4 pigeons were trained on a three-component multiple concurrent-chains procedure in which components differed only in terms of relative terminal-link entry rate. The terminal links were variable-interval schedules and were varied across four conditions to produce immediacy ratios of 4:1, 1:4, 2:1, and 1:2. Relative terminal-link entry…