Research methods Observational methods 2 0.0 / 5 ? PsychologyResearch methodsUniversityNone Created by: CaliFishCreated on: 05-05-17 14:46 Name a measuring instrument of observations a coding scheme 1 of 33 what are the two musts for a good coding scheme codes should be mutually exclusive and codes should be exhaustive 2 of 33 reliability of a coding scheme is not about what the precision of the observer 3 of 33 reliability of a coding scheme is about what the precision of the coding scheme 4 of 33 if a observer is sloppy it will show up as what low reliability 5 of 33 therefore how will you know if the low reliability is due to a poor coding scheme or a poor observer you will not 6 of 33 reliability of a coding scheme are what context specific 7 of 33 define intra observer reliability the same observer coded the same behavioural recored the same at different times 8 of 33 define inter observer reliablity different observers coded the same behavioural record the same at different or same time 9 of 33 when is inter observer reliability be assessed, begging, during or at the end can do all 10 of 33 name the two estimates consensus and consistency 11 of 33 observers estimates are based on what that coders can come to an exact agreement 12 of 33 what type of data is this used on categorical 13 of 33 what type of calculation cohens kappa 14 of 33 what are consistency estimates based on coders do not have to be identical but equally consistent 15 of 33 what type of scale is this used on ordinal, interval, continous 16 of 33 what type of calculation pearsons r, spearman rhos and cronbachs alpha 17 of 33 why do we use cohens kappa and not percent agreement does not account for random change 18 of 33 why do we use cronbachs alpha and not correlation coefficient it does not account for the variance between coders 19 of 33 when calculating cohens kappa, when observers both say yes what letter a 20 of 33 when observers both say no what letter d 21 of 33 when observer A says yes and observer B says no c 22 of 33 when observer B says yes and observer A says no b 23 of 33 draw a contingency table ... 24 of 33 what is equation for percent agreement in two forms no of times agree/total no of observations and a + d / total 25 of 33 what is the cohens kappa equation Pa - Pc / 1 - Pc 26 of 33 what is the next step convert contingency table of frequencies into probabilities 27 of 33 how do you report for b value divide all values by the total number of observations 28 of 33 how do you work out Pc (exg) + (fxh) 29 of 33 name the two bias' in kappa stats marginal homogeneity and trait prevalence 30 of 33 the more _______ the margins are the _____ the kappa will be homogenous, lower 31 of 33 the kappa is ______ to high or low levels of trait prevalence and therefore the kappa becomes _____ sensitive, lower 32 of 33 whats another way for saying the kappa becomes lower more conservative 33 of 33
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