Samenvatting - Quantitative Data Analysis 2 (6012B0423Y)

QuantitativeData Analysis 2

Week 2

, Topic2 Conceptual Model ANOVA


InQDAthetermdepenidentandindependentvariableareoftenused inthiscoursewe useOutcomevariable
andPredictorvariableinstead

TheOV outcomevariable isthetestedtobeexplainedvariablesamethingondependentV
ThePV thevariablethat
explain samethingas anindependentvariable

PV IVandOVDV

The valuestand
p fortheProbabilityofobtaininga resultequaltowhatwasactuallyobservedawning
thatthenullhypothesisistrueSobonicallyin ANOVAthePvaluetelluswhethertheobserveddifference
intheoutcomevariableacrossthegroupsdefinedbythepredictorvariableare statisticallysignificant or
duetochanceBut repeatedthe rare experiment timesunderthenullhypothesisabout5

experiments
ifyou
wouldlead to
many
I
incorrectlyrejectingthewell Type error
these
of
you

Aconceptualmodelisthevisualrepresentationofrelationbetweentheoreticalconstructsandvariableofinterest
Amodel injust a simplifieddescription reality
of
Thevariableusedin a modelcanhavedifferentneaurement

1 Categorical nominalordinal subgroupsindicatedbynumbers
2Quantitativediscreteintervalratio
oftenordinalscaler are treatedon intervalscaler Likertscale


Thepredictorvariablein a categoricalvariableand
theoutcomevariable in aquantitativevariable


The modelalwaysstart
creatingof a conceptual
witha researchquestion Whatfactorsinfluencestudentsatisfaction
Afterwardthehypotherin are formulatedthisis averbalizedexpressionofan expectedrelation
PV or




thehypothesiswhich
Thearrowrepresente needtobetestable