Exploratory analyses to improve model fit: Errors due to misspecification and a strategy to reduce their occurrence

Two Lagrange multiplier (LM) methods may be used in specification searches for adding parameters to models: one based on univariate LM tests and respecification of the model (LM‐respecified method) and the other based on a partitioning of multivariate LM tests (LM‐incremental method). These methods may result in extraneous parameters being included in models due to either sampling error or the model being misspecified. A 2‐stage specification search may be used to reduce errors due to misspecification. In the 1st stage, parameters are added to models based on LM tests to maximize fit. Second, parameters added in the 1st stage are deleted if they are no longer necessary to maintain model fit. Illustrations are presented to demonstrate that errors due to misspecification occur with the LM‐respecified method and are even more likely with the LM‐incremental approach. These illustrations also show how the deletion stage can help eliminate some of these errors.     

Achievement and Climate Outcomes for the Knowledge is Power Program in an Inner-City Middle School

This study was designed to examine the effects of a whole school reform, the Knowledge is Power Program (KIPP), specifically designed to raise academic achievement of at-risk urban middle school students by establishing an extended school day and year, a rigorous curriculum, after-school access to teachers, and increased family-school connections. In our mixed-methods design, qualitative (interview and observation) and quantitative (survey and achievement test) measures are employed to determine first-year program implementation and student outcomes for the KIPP:DIAMOND (Daring Individual Achievers Making Outstanding New Dreams) Academy (KIPP:DA), an inner-city school in a large, high-poverty urban district. For the achievement analyses, 49 KIPP:DA students were individually matched to highly comparable control students of the same ethnicity, socioeconmic status, gender, and ability, who attended different district schools in the same neighborhood. Statistically significant and educationally meaningful advantages for KIPP:DA students were found on 4 out of 6 standardized tests. The achievement results are interpreted in relation to the key program elements, the positive school climate established, and the quality of the 1st-year implementation.     

Sustaining High-Quality Teaching and Evidence-Based Curricula: Follow-Up Assessment of Teachers in the REDI Project

Research Findings: Recent research has validated the power of evidence-based preschool interventions to improve teaching quality and promote child school readiness when implemented in the context of research trials. However, very rarely are follow-up assessments conducted with teachers in order to evaluate the maintenance of improved teaching quality or sustained use of evidence-based curriculum components after the intervention trial. In the current study, we collected follow-up assessments of teachers 1 year after their involvement in the REDI (REsearch-based, Developmentally Informed) research trial to evaluate the extent to which intervention teachers continued to implement the REDI curriculum components with high quality and to explore possible preintervention predictors of sustained implementation. In addition, we conducted classroom observations to determine whether general improvements in the teaching quality of intervention teachers (relative to control group teachers) were sustained. Results indicated sustained high-quality implementation of some curriculum components (the Promoting Alternative THinking Strategies curriculum) but decreased implementation of other components (the language/literacy components). Sustained intervention effects were evident on most aspects of general teaching quality targeted by the intervention. Practice or Policy: Implications for practice and policy are discussed.     

Let’s Stay Together

全球许多传媒实况报道了奥巴马第二任就职大典的过程,包括祷告会、宣誓就职、检阅仪仗队、午餐、就职庆祝游行、晚餐以及舞会。在整个就职大典中,舞会扮演了十分重要的角色。在今年的舞会上,奥巴马夫妇跳了第一支舞,由著名演员、歌唱家詹妮弗·哈德森(Jennifer Hudson)伴唱,歌曲是"让我们在一起"(Let’s Stay Together),这是一首七十年代的当红流行曲,被列入美国五百首最了不起歌曲排行榜的第六十名。春节、情人节,一中一西两个节日,总是让整个虽然还春寒料峭的2月天都洋溢着温暖甜蜜的气氛,这首歌很是应景呢。     

Stereotype threat in manual labor settings for African American and Caucasian participants

Stereotype threat has primarily been studied with regard to test performance in academic settings, testing aptitude, ability, and intelligence, and it has been found to cause both behavioral and cognitive decrements. Although there is research on stereotype threat in the workplace, this too is usually conducted in upper‐level or more academically based job tasks. This article concentrates on how stereotype threat affects those in manual labor workplace settings. This research, however, sought to test subjects on a behavioral task in a workplace setting to see if the results mirror those in academia. Stereotype threat in academic settings has been shown to cause both behavioral and cognitive decrements. It was theorized that stereotype threat would cause performance decrements for the African American participants. Participants were undergraduate students—60 Caucasian and 60 African American. All performed two manual labor tasks, sorting and assembling nuts and bolts, and a math test, half while under stereotype threat and half without stereotype threat manipulation. Results yielded significant differences between the two conditions for African Americans on both the academic and nonacademic/manual labor tasks.     

Reviews

Moyle, Donald (compiler) (1979) Teaching Reading. Peddie, W. S. & White, G. R. (1978). Testing in Practice–a guide to the preparation and marking of tests, formal examinations and informal assessments. Drummond, Don and Wignell, Edna (Editors), 1979. Reading: A Source Book. Roswell, Florence G. and Chall Jeanne S., (1979). Roswell Chall Diagnostic Reading Test of Word Analysis Skills.     

University Educator Mindsets: How Might Adult Constructive‐Developmental Theory Support Design of Adaptive Learning?

This article explores Robert Kegan's adult constructive‐developmental (ACD) theory. We compare these ideas to the way educators at each of Kegan's meaning‐making levels might plan, implement, and assess digitally enhanced teaching activities. Using Drago‐Severson's interpretation of Kegan's concepts, the authors propose that behaviors of university teaching practitioners indicate mindsets evident at four ACD levels—instrumental, socialized, self‐authoring, and self‐transforming. Higher education professional development literature has identified a significant gap in practitioner implementation of interactive strategies using digital tools. If university practitioners increase their mental complexity they may become more adaptive in the application of interactive pedagogies and digital technologies. Adaptive approaches might cultivate new pedagogies supporting and challenging students toward more complex and flexible qualities of mind.