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PSYC3020 (Lecture 3: Reliability) Quiz sobre Reliability , criado por chanelle.narayan em 07-10-2014.

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Reliability

Questão 1 de 17

1

What is classical test theory?

Selecione uma das seguintes:

  • The concept that every measurement has two parts: true score and measurement error

  • The concept that every measurement has two parts: measurement error and observed score

  • The concept that every measurement has two parts: true score and observed score

  • The concept that every measurement has two parts: measurement error and all unsystematic variance

Explicação

Questão 2 de 17

1

Statement 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)

Selecione uma das seguintes:

  • Both are True

  • Statement 1: True
    Statement 2: False

  • Statement 1: False
    Statement 2: True

  • Both are False

Explicação

Questão 3 de 17

1

Statement 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

Selecione uma das seguintes:

  • Statement 1: False
    Statement 2: True

  • Statement 1: True
    Statement 2: False

  • Both are true

  • Both are false

Explicação

Questão 4 de 17

1

Which one is NOT a source of measurement error?

Selecione uma das seguintes:

  • Test Construction

  • Test Administration

  • Motivational Factors

  • Test Accuracy

Explicação

Questão 5 de 17

1

Statement 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

Selecione uma das seguintes:

  • Statement 1: False
    Statement 2: True

  • Both are false

  • Statement 1: True
    Statement 2: False

  • Both are true

Explicação

Questão 6 de 17

1

What is used to calculate internal consistency when there are more than two possible outcomes?

Selecione uma das seguintes:

  • Regression Analysis

  • Degrees of Freedom

  • Cronbach's Alpha

  • KP-20

Explicação

Questão 7 de 17

1

Statement 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

Selecione uma das seguintes:

  • Statement 1: False
    Statement 2: True

  • Both are true

  • Statement 1: True
    Statement 2: False

  • Both are false

Explicação

Questão 8 de 17

1

Statement 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

Selecione uma das seguintes:

  • Both are false

  • Statement 1: true
    Statement 2: false

  • Both are true

  • Statement 1: false
    Statement 2: true

Explicação

Questão 9 de 17

1

What measure shouldn't you use when there is a heterogeneous test?

Selecione uma das seguintes:

  • Inter-rater

  • Parallel/Alternate Forms

  • Test-retest

  • Internal consistency

Explicação

Questão 10 de 17

1

Statement 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

Selecione uma das seguintes:

  • Both are false

  • Both are true

  • Statement 1: true
    Statement 2: false

  • Statement 1: false
    Statement 2: true

Explicação

Questão 11 de 17

1

What estimate of reliability would not be appropriate for speed tests?

Selecione uma das seguintes:

  • Inter-rater

  • Internal consistency

  • Test-retest

  • Parallel/alternate

Explicação

Questão 12 de 17

1

Statement 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

Selecione uma das seguintes:

  • Statement 1: false
    Statement 2: true

  • Both are true

  • Both are false

  • Statement 1: true
    Statement 2: false

Explicação

Questão 13 de 17

1

What is the standard error of measurement?

Selecione uma das seguintes:

  • standard deviation of the distribution

  • standard deviation of the difference scores

  • variance of the distribution

  • variance of the difference scores

Explicação

Questão 14 de 17

1

How many scores will be within 1 SEM of the true score (+/- 1 SD)?

Selecione uma das seguintes:

  • 68%

  • 58%

  • 95%

  • 99.7%

Explicação

Questão 15 de 17

1

How many scores will be within 1 SEM of the true score (+/- 1 SD)?

Selecione uma das seguintes:

  • 58%

  • 68%

  • 99.7%

  • 95%

Explicação

Questão 16 de 17

1

Statement 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)

Selecione uma das seguintes:

  • Both are true

  • Statement 1: false
    Statement 2: true

  • Statement 1: true
    Statement 2: false

  • Both are false

Explicação

Questão 17 de 17

1

What is the reliable change index? (RCI)

Selecione uma das seguintes:

  • Tells you how happy someone is

  • When the RCI is smaller than 1.96 then there is a significant change

  • Another way to measure SEM

  • Used in clinical contexts to see if there is a difference in treatment

Explicação

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