Quiz
Reliability
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Perguntas do quiz (17)
1What is classical test theory?
- AThe concept that every measurement has two parts: true score and measurement error
- BThe concept that every measurement has two parts: measurement error and observed score
- CThe concept that every measurement has two parts: true score and observed score
- DThe concept that every measurement has two parts: measurement error and all unsystematic variance
2Statement 1: true score theory is the idea that every measurement is split into two parts (actual and error)
Statement 2: classical test theory is the concept that every measure is split into two parts (observed and actual)- ABoth are True
- BStatement 1: True
Statement 2: False - CStatement 1: False
Statement 2: True - DBoth are False
3Statement 1: when calculating the reliability use variance because it is additive
Statement 2: reliability in terms of the relationship between true and total variance is true variance/total variance- AStatement 1: False
Statement 2: True - BStatement 1: True
Statement 2: False - CBoth are true
- DBoth are false
- AStatement 1: False
4Which one is NOT a source of measurement error?
- ATest Construction
- BTest Administration
- CMotivational Factors
- DTest Accuracy
5Statement 1: we can always estimate reliability directly using true variance and measurement error
Statement 2: we can measure reliability using four different types of tests: inter-rater, test-retest, alternate forms and external consistency- AStatement 1: False
Statement 2: True - BBoth are false
- CStatement 1: True
Statement 2: False - DBoth are true
- AStatement 1: False
6What is used to calculate internal consistency when there are more than two possible outcomes?
- ARegression Analysis
- BDegrees of Freedom
- CCronbach's Alpha
- DKP-20
7Statement 1: KR-20 is used instead of Cronbach's alpha when there is a question with only two outcomes
Statement 2: Cronbach's alpha is calculated by splitting the data in half, calculating total scores and correlations, repeating for all possible two way splits- AStatement 1: False
Statement 2: True - BBoth are true
- CStatement 1: True
Statement 2: False - DBoth are false
- AStatement 1: False
8Statement 1: Parallel forms are where the two versions of a test have equivalent content and difficulty level
Statement 2: Alternate forms are tests where the two versions of the test have a shared mean, SD and correlations with other tests- ABoth are false
- BStatement 1: true
Statement 2: false - CBoth are true
- DStatement 1: false
Statement 2: true
9What measure shouldn't you use when there is a heterogeneous test?
- AInter-rater
- BParallel/Alternate Forms
- CTest-retest
- DInternal consistency
10Statement 1: when there is a static test it is possible to use test-retest but not when the test has dynamic characteristics
Statement 2: when there is a restriction of range reliability estimates are still able to be interpreted- ABoth are false
- BBoth are true
- CStatement 1: true
Statement 2: false - DStatement 1: false
Statement 2: true
11What estimate of reliability would not be appropriate for speed tests?
- AInter-rater
- BInternal consistency
- CTest-retest
- DParallel/alternate
12Statement 1: increasing the number of items in a test continues to double the amount of reliability
Statement 2: the spearman brown formula is used for estimating reliability when a test is shortened or lengthened- AStatement 1: false
Statement 2: true - BBoth are true
- CBoth are false
- DStatement 1: true
Statement 2: false
- AStatement 1: false
13What is the standard error of measurement?
- Astandard deviation of the distribution
- Bstandard deviation of the difference scores
- Cvariance of the distribution
- Dvariance of the difference scores
14How many scores will be within 1 SEM of the true score (+/- 1 SD)?
- A68%
- B58%
- C95%
- D99.7%
15How many scores will be within 1 SEM of the true score (+/- 1 SD)?
- A58%
- B68%
- C99.7%
- D95%
16Statement 1: standard error of the difference is used to work out the margin of error in an individual's score
Statement 2: in order for two scores to be significantly different they have to differ by at least 2 standard error of the differences (1.96)- ABoth are true
- BStatement 1: false
Statement 2: true - CStatement 1: true
Statement 2: false - DBoth are false
17What is the reliable change index? (RCI)
- ATells you how happy someone is
- BWhen the RCI is smaller than 1.96 then there is a significant change
- CAnother way to measure SEM
- DUsed in clinical contexts to see if there is a difference in treatment
Informações
- Descrição
- PSYC3020 (Lecture 3: Reliability) Quiz sobre Reliability , criado por chanelle.narayan em 07-10-2014.
- Autor
- chanelle.narayan
- Idioma
- English
- Visualizações
- 62
- Histórico
- Criado em 7 out 2014 · atualizado em 19 fev 2016
- Etiquetas
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