PSYCH 2AA3 - The Science of Child Development \u25cf \u25cf Correlational studies \u25cb Relations as they exist in the real world \u25cb Associations between

PSYCH 2AA3 - The Science of Child Development u25cf u25cf...

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September 11, 2019The Science of Child DevelopmentCorrelational studies:Relations as they exist in the real worldAssociations between variables Correlation coefficient, r= -1 to 1Not a measure of causation Experimental studies:Manipulating key factorsIndependent variableDependent variable General Designs for ResearchMediator variable: third variableGrades → happiness; rather, grades → self-esteem → happiness Field experimentsRandom assignmentHistorically, most developmental research has been quantitativeThere is increasing use of qualitative research in PsychQualitative methods allow researchers to investigate children’s thoughts and feelings about a topic of interest Methods for Studying DevelopmentLongitudinal studySame child tested over a period of timeLimitations: child may not want to continue, takes lots of timeCross-sectional studyChildren at different ages are tested at the same time Sequential designCohort effects → specific things happen to specific cohorts Practice effects → get better at tasksAttrition → Longitudinal-Sequential StudyChildren at different ages are tested across several yearsThe Preemie StudyThe cohort study followed ELBW babies between 500 and 1000 grams, born between 1977 and 1982 Originally, there were 179 babies, most recently only 100. At the same time, normal birth weight
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babies of 144 children were recruited for comparisons, 89 still involvedsuffer from neurosensory impairments such as blindness or cerebral palsy Sophisticated Research DesignsQuasi- Experimental designMeasuring things pre-intervention and post-intervention
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  • Fall '13
  • Dr.J.M.Ostovich
  • Genetics

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