Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
If the independent variable has a real effect, the probability of rejecting Ho is
|
power
|
|
One can increase power by
|
increasing N and increasing the effect of independent variable
|
|
If the power of an experiment is .3400, the probability of retaining Ho when Ho is false is
|
0.6600
|
|
Which of the following P values represents the strongest effect?
|
Pnull=.50
Preal=.70 Preal=.80 Preal=.10** |
|
If beta=.7500, what is the power of the experiment?
|
.2500
|
|
Which of the following represents the null hypothesis condition for a nondirectional H1?
|
pnull=.50
|
|
In the case of N=3, Preal=.90, alpha =.05 1 tail, using the sign test, the power is
|
0
|
|
Which of the following may be false?
|
alpha+beta=1
|
|
In a two-tailed test, which of the following would yield the same power as a size of effect represented by Preal=.90
|
Preal=.10
|
|
If Ho is false the prob. of making a correct decision is
|
power
|
|
Assume that you have conducted an experiment and the tail probability for the results you obtained was .0900 and alpha=.05, you can conclude
|
you were unable to detect an effect of the IV with your experiment (b/c we're retaining the null)
|
|
Truth demands that scientists set
|
not necessarily alpha=.01 or .05, but use their best judgment
|
|
In the sign test, if Ho is false, then Preal
|
does not equal .50
If Ho is False, Preal CAN'T be .50, it can never be .50 |
|
In an experiment, if the effect of the IV and alpha remain the same and N increases
|
power increases
|
|
In an experiment with N=14 and Preal =.10, what is the power using alpha=.05 2 tail
|
.8417
|
|
In the same experiment as 15, what is the power using alpha=.01 2 tail
|
.5847
|
|
An experiment with N=18 is more powerful than an experiment N=17, all other things being the same
|
true
|
|
In order to calculate power, you must know
|
alpha, N, P
|
|
In an experiment with N=6, Preal =.15, what is the power using alpha =.01 2 tail
|
0
|