Test
Week 3
Preguntas del test (6)
1Which of the following are sources of variance?
- AThe within group differences
- BThe error
- CThe treatment
- DAll of the these
2Why would you use post-hoc tests instead of planned contrasts?
- AWe are interested in testing all possible comparisons
- BThere is a need to improve the power of the test
- CWe are not interested in testing all possible comparisons
- DThere are not that many comparisons to make
3How can you improve the power of your experiment?
- AReducing the degrees of freedom for the residual source of variance
- BIncreasing the number of levels of treatment
- CIncreasing the number of participants
- DAll of these
4The power of a test is the probability of...
- Aaccepting the alternative hypothesis when incorrect
- Brejecting the null hypothesis when incorrect
- Caccepting the null hypothesis when correct
- Drejecting the alternative hypothesis when incorrect
5Imagine 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?
- Atwo groups: 1) immediately after the stroke 2) three weeks later
- Btwo groups: 1) three weeks later 2) six months later
- Ctwo groups: 1) immediately after stroke 2) six months later
- Dthree groups: 1) immediately after the stroke 2) three weeks later 3) 6 months later
6If you take steps to minimize a Type I error, then the probability of making a Type II error is
- ACut in half
- BUnaffected
- CIncreased
- DAlso decreased
Información
- Descripción
- El usuario ha eliminado su información de asignaturas Test sobre Week 3, creado por Usuario eliminado el 19/05/2019.
- Autor
- Usuario eliminado
- Idioma
- English
- Visitas
- 23
- Historial
- Creado el 19 may 2019 · actualizado el 19 may 2019
- Etiquetas