12-Estimating the Difference Between the Means of Dependent Populations Flashcards

1
Q

What is D, mD and s2D?

A

a difference score ,mean of the difference score and variance of the difference

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is subject variability ?

A

the variability of individuals’ scores around the group mean.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the formula for smd

A

smd=sqart of sd2/n

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the formula for The mean of the population of difference score ?

A

ud= SD/N

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the formula for the variance of the sample difference scores?

A

s2d= 2(s2b+s2a - 2ss2)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is a repeated-measures design?

A

involves scores obtained from participants on more than one occasion. That is, we’ve taken repeated measures from the same participants.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the carryover effect?

A

occurs when obtaining measurements on previous trials affect the measurements made on subsequent trials.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a matched-samples design?

A

creates dependent samples without measuring individuals twice. Individuals in two samples are matched on features that might be associated with the dependent variable, such as age, sex, socioeconomic status, IQ, health status, income, height, weight, or empathy, to name just a few that might be important in psychological research.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly