state vs trait constructs. project question 4 n does your test measure a state or a trait?
TRANSCRIPT
![Page 1: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/1.jpg)
State vs TraitState vs Trait
Constructs
![Page 2: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/2.jpg)
Project question 4Project question 4
Does your test measure a state or a trait?
![Page 3: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/3.jpg)
Criterion vs Norm referencedCriterion vs Norm referenced
Criterion reference = compares to established standard, well defined objectives
Norm referenced = compares each score to other scores, relative
![Page 4: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/4.jpg)
NormsNorms
Types of norms?????
![Page 5: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/5.jpg)
Project question 5Project question 5
What sort of norms would be appropriate to collect to standardize your measure?
Why did you select those norms?
![Page 6: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/6.jpg)
SamplingSampling
Random Stratified Purposive Incidental/convenience
![Page 7: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/7.jpg)
CorrelationsCorrelations
NOT causal relationship between variables predictive
![Page 8: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/8.jpg)
ScatterplotScatterplot
![Page 9: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/9.jpg)
Positive CorrelationPositive Correlation
![Page 10: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/10.jpg)
Negative CorrelationNegative Correlation
![Page 11: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/11.jpg)
No correlationNo correlation
![Page 12: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/12.jpg)
Correlation valuesCorrelation values
-1 to +1
.56, -.45, -.09, .89, -.93
![Page 13: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/13.jpg)
correlation for AB/IE = -0.11
0
2
4
6
8
10
12
14
16
0 5 10 15 20
IE/AB correlation
AB
![Page 14: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/14.jpg)
Appropriate CorrelationsAppropriate Correlations
1 - data must be linear not curvilinear (determine by scatterplot)
![Page 15: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/15.jpg)
CurvilinearCurvilinear
![Page 16: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/16.jpg)
Appropriate Correlation to useAppropriate Correlation to use
1 – linear data
2 - type of scale
interval (or ratio) = Pearson r
ordinal = Spearman rho
3 - number of subjects
more than 30 = Pearson
fewer than 30 = Spearman
![Page 17: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/17.jpg)
Decision TreeDecision Tree
Linear
No = no corr yes = corr
Scale
ordinal = rho interval = r
number
< 30 = rho > 30 = r
![Page 18: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/18.jpg)
Project question #6Project question #6
Which correlation formula would you use when correlating the scores from your measure with another variable?
Why would you use that formula?
![Page 19: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/19.jpg)
Multiple correlationsMultiple correlations
Correlations between more than one variable done at the same time.
![Page 20: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/20.jpg)
Multiple regressionMultiple regression
Relationship between more variables Uses specific predictor and criterion
variables Looks at relationships between predictors Can factor out partial relationships
![Page 21: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/21.jpg)
Multiple regression - exampleMultiple regression - example
Grad school grade performance = criterion (or outcome)
Predictor variables
= undergrad GPA
= GRE scores
= Quality of statement of purpose
![Page 22: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/22.jpg)
Multiple regression dataMultiple regression data
Predictor Beta (=r) significance (p)
GPA .80 .01
GRE .55 .05
statement .20 .20
![Page 23: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/23.jpg)
Multiple regression – example 2Multiple regression – example 2
Predictor variables = Metacognition, Locus of Control, Learning Style
Criterion variable = academic performance (grade)
![Page 24: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/24.jpg)
Multiple regression dataMultiple regression data
Predictor Beta (=r) significance (p)
Meta. .75 .01
LofC .65 .05
L.S. .32 .15
![Page 25: State vs Trait Constructs. Project question 4 n Does your test measure a state or a trait?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649da25503460f94a8e49a/html5/thumbnails/25.jpg)