alternativefamily analyse(algemeen) benaderingen(wiskunde) childbehavior childdevelopment datacollection education educational enseignement families famille familles family familyrelations gezin interactie interactionanalysisineducation interactioneneducation lb1117b671c1977 methodology méthodologie méthodologiederecherche observation observation(educationalmethod) observation(méthoded'enseignement) observations onderwijs primary psychology recherche reference relationships research researchdesign teaching unterrichtsbeobachtung