Sökning: "national sample"

Visar resultat 1 - 5 av 281 avhandlingar innehållade orden national sample.

  1. 1. The influence of national curricula and national assessments on teachers’ beliefs about the goals of school mathematics

    Författare :Björn Palmberg; Torulf Palm; Ole Björkqvist; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; mathematical competence; competency goals; policy; reform; national curriculum; national assessment; teachers’ goals; teachers’ belief change; didactics of mathematics; matematikdidaktik;

    Sammanfattning : What students should learn in school and therefore also what teachers should teach is an important issue worldwide. Mathematics teaching (and teaching in other subjects) is often regulated by some form of governing text in a written curriculum communcating a set of standards. LÄS MER

  3. 2. Motivational aspects of test-taking : measuring test-taking motivation in Swedish national test contexts

    Författare :Eva Knekta; Hanna Eklöf; Anna Sundström; Rolf Vegar Olsen; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Test-taking motivation; Swedish national tests; validity; expectancy-value theory; task value; expectancies; young adolescents; self-report instrument; interview; structural equation modelling; test stakes; didactics of educational measurement; beteendevetenskapliga mätningar;

    Sammanfattning : The overall aim of the work underlying this thesis was to improve the understanding of students’ test-taking motivation in connection to achievement tests for young adolescents. The thesis includes four studies and a summary. All four studies explore test-taking motivation and are all connected to validity in one way of another. LÄS MER

  4. 3. Automation, hyphenation and multidimensional chromatography for PAH analysis : Analytical techniques to simplify sample complexity

    Författare :Hwanmi Lim; Roger Westerholm; Christoffer Bergvall; Stephen Wise; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polycyclic aromatic hydrocarbon; PAH; benzo[a]pyrene; B[a]P; carcinogenicity; cancer risk assessment; complex matrix; automation; hyphenation; multidimensional chromatography; two-dimensional; method translation; online fractionation; benz[j]aceanthrylene; B[j]A; relative potency factor; Analytical Chemistry; analytisk kemi;

    Sammanfattning : One group of organic environmental pollutants which are potentially hazardous to human health is polycyclic aromatic hydrocarbons (PAHs). These compounds consist of two or more benzene rings in their structure among which benzo[a]pyrene (B[a]P) is classified as a human carcinogen. LÄS MER

  5. 4. Integrating trees outside forests into national forest inventories

    Författare :Sebastian Schnell; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Trees Outside Forests (TOF) offer a wide range of ecological, economic, and social services. For example, they sequester carbon, provide wood for fuel and construction, protect soils from erosion, and contribute to the conservation of biological diversity. LÄS MER

  7. 5. High achiever! Always a high achiever? : A comparison of student achievements on mathematical tests with different aims and goals

    Författare :Elisabet Mellroth; Arne Engström; Jari Appelgren; Astrid Pettersson; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; achievement; alternative assessment; curriculum based assessment mathematical competency; mathematical kangaroo; mathematics tests; national tests; Matematik; Mathematics;

    Sammanfattning : This study explored changes in relative achievement over time. It also investigated differences in how two groups of students activate mathematical competencies. LÄS MER