Katie Morbey
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Psychology Quiz sobre Week 3, criado por Katie Morbey em 19-05-2019.

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Week 3

Week 3

Questão 1 de 6

1

Which of the following are sources of variance?

Selecione uma das seguintes:

  • The within group differences

  • The error

  • The treatment

  • All of the these

Explicação

Questão 2 de 6

1

Why would you use post-hoc tests instead of planned contrasts?

Selecione uma das seguintes:

  • We are interested in testing all possible comparisons

  • There is a need to improve the power of the test

  • We are not interested in testing all possible comparisons

  • There are not that many comparisons to make

Explicação

Questão 3 de 6

1

How can you improve the power of your experiment?

Selecione uma das seguintes:

  • Reducing the degrees of freedom for the residual source of variance

  • Increasing the number of levels of treatment

  • Increasing the number of participants

  • All of these

Explicação

Questão 4 de 6

1

The power of a test is the probability of...

Selecione uma das seguintes:

  • accepting the alternative hypothesis when incorrect

  • rejecting the null hypothesis when incorrect

  • accepting the null hypothesis when correct

  • rejecting the alternative hypothesis when incorrect

Explicação

Questão 5 de 6

1

Imagine that you are a Clinical Neuropsychologist who works with language difficulties shown by Aphasics resulting from a brain stroke. You are interested in studying the impact of a particular treatment as a function of the time interval between the time of the lesion and the time of intervention. If you want to maximize the power of the study, which groups would you use?

Selecione uma das seguintes:

  • two groups: 1) immediately after the stroke 2) three weeks later

  • two groups: 1) three weeks later 2) six months later

  • two groups: 1) immediately after stroke 2) six months later

  • three groups: 1) immediately after the stroke 2) three weeks later 3) 6 months later

Explicação

Questão 6 de 6

1

If you take steps to minimize a Type I error, then the probability of making a Type II error is

Selecione uma das seguintes:

  • Cut in half

  • Unaffected

  • Increased

  • Also decreased

Explicação

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