The study is based on two waves of longitudinal data at ages 13 and 16 aimed to examine factors that explain psychosomatic and depressive symptoms at the age of 16. The sample is nationally representative involving 9000 individuals from the Swedish longitudinal Evaluation Through Follow up database born in 1998. A growth modeling approach was…

The aim was to investigate the effects of school mobility on achievement in compulsory school in Sweden for children in out-of-home care (OHC) and not in OHC (NOHC). Register data on background variables from four birth cohorts in the cohort-sequential longitudinal project ETF was relied upon, along with student performance on a test of cognitive…

This study aimed to enhance our knowledge of the constituent variables affecting invented writing skills in 5-year-olds by investigating the concurrent relationships among home literacy, underlying language skills, and invented writing. The study comprised 111 Norwegian-speaking children (mean age: 5.7 years; 58 girls) and their parents. The…

The main aim of this study was to investigate the development of the correlation between family education and student achievement in Sweden, which previous research has found to be stable, in spite of increasing school segregation and widening differences in levels of achievement between schools. Based on register data for populations of graduates…

The aim is to describe the development of achievement in compulsory school in the Nordic countries from the 1960s. The study relies on published results concerning literacy and numeracy from the international large-scale assessments between 1964 and 2012. Among others, the following conclusions are drawn: (1) for most countries, a small but…

The Norwegian government recommends a systematic language assessment of all four-year-olds as part of the general health surveillance program for the purpose of identifying children at risk of language delay. This study aimed to investigate the construct validity of the recommended language screening tool called LANGUAGE4 [SPRÅK4] by first…

Socioeconomic status (SES) is often used as control variable when relations between academic outcomes and students' migrational background are investigated. When measuring SES, indicators used must have the same meaning across groups. This study aims to examine the measurement invariance of SES, using data from TIMSS, 2003. The study shows that a…

This study examines the changes in educational inequality at the school- and individual-levels in 1991 and 2001. Comparisons are made between the IEA Reading Literacy Study 1991 and the so called 10-Year Trend Study in PIRLS 2001. The between-school differences in reading achievement variance and the size of the relationship between SES and…

Pupils' responses in Grade 6 to a 40-item questionnaire originally constructed to reveal different school attitudes were re-analysed using recently developed techniques for latent variable analysis of two-level data. One aim was to test a model for investigation of classroom environment and another aim was to compare exploratory factor analysis…

To determine whether or not there are systematic differences in the psychometric properties of items in the vocabulary test of the Swedish Scholastic Aptitude Test, data from test administrations from 1984 through 1988 (over 50,000 students) were analyzed. The systematic relationships between word characteristics and psychometric properties are…

The dimensional structure of the 6 subtests of the Swedish Scholastic Aptitude Test was investigated using data from 10 versions of the test administered to approximately 50,000 examinees in 1984-88. The best alternative appeared to be a model with two orthogonal factors. (SLD)