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Statistiek en data-analyse samenvatting

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Dit document omvat handige info die je mee kan nemen naar het openboek examen van het vak statistiek en data-analyse. Het laat toe om een duidelijk overzicht van de cursus te krijgen en om snel veelgebruikte code's te raadplegen. Ik was geslaagd in eerste zit.

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Uploaded on
October 30, 2025
Number of pages
4
Written in
2024/2025
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Inhoudstabel statistiek
1. Hoofdstuk 1: inleiding
2. Hoofdstuk 2: wat maakt een empirische studie kwalitatief
2.1. Representatieve steekproef (p.19)
2.2. Selectie bias (p.20)
2.3. Bigger is not always better (p.20)
2.4. Missing data (p.22)
2.5. Experimentele vs observationele studie (p.22)
2.6. Klinische studie (p.22)
2.7. Controle groep + historische controle (p23)
2.8. Pre/post test studies + regression to the mean (p.24)
2.9. Confounder (p.25)
2.9.1. NHANES 1 studie (invloed alcohol consumptie op borstkanker)
2.9.2. Studie associatie longkanker + roken
2.10. Gecontroleerde experimenten (p.26)
2.10.1. Salk vaccin studie
2.10.2. Incidentie en prevalentie (p.27)
2.10.3. Randomisatie (p.28)
2.10.3.1. Differentiële uitval (p.29)
2.10.3.2. Vs systematissche allocatie (p.32)
2.10.3.3. Randomisatietechnieken (p.33)
2.10.3.3.1. Eenvoudige randomisatie
2.10.3.3.2. Gebalanceerde randomisatie
2.10.3.3.3. Gestratificeerde randomisatie
2.10.3.4. Gestratificeerd randomisatie (p.34)
2.11. Belangrijke case studies (p.39)
2.11.1. Clofibrate studie
2.11.1.1. Intention-to-treat principe (p.40)
2.11.1.2. Adheres en non-adherers (p.40)
2.11.1.3. Healthu user en sick stopper effect (p.40)
2.11.2. Cohort studie (p.41)
2.11.3. Cross-selectionele studie (p.41)
2.11.4. Birth weight paradox (p.44)
2.11.5. Simpson’s paradox (p.45)
2.12. Bijzondere observationele studiedesigns
2.12.1. Retrospectieve studie (p.46)
3. Hoofdstuk 3: hoe gegevens visualiseren (p.53)
3.1. Types variabelen (p.53)
3.2. Ggplot (p.55)
3.3. Dotplot (p.59)
3.4. Profielplot (p.60)
3.5. Wide.format en long.format (p.62)
4. Hoofdstuk 4: hoe een behandelingseffect kwantificeren (p. 69)
4.1. Categorische vs continue metingen (p. 71)
4.2. Gemiddelde, mediaan en modus (p. 73)
4.3. Scheve verdeling ( p. 74)
4.4. Logaritmische transformatie (p.75)
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