Question

A repeated-measures design deals with the differences of the means, while an independent-measures design deals with the mean of the differences."

True False

A repeated-measures design study comparing two samples uses _____ groups of participants and obtains ____ score(s) for each participant.

"1, 1"

"1, 2"

"2, 1"

"2, 2"

A repeated-measures design is better than an independent-measures design because it requires more subjects.

True False

A repeated-measures t-test is also called a within-subjects, paired, or dependent t-test. "

True False

Answer #1

a) False It is the other way round

b)A repeated-measures design study comparing two samples uses
**one** groups of participants and obtains
**two** score(s) for each participant.

Option B is right

Experiments using repeated measures design, sometimes also called within-subject designs, make measurements using only one group of subjects, where tests on each subject are repeated more than once after different treatments.

C) False it requires less subjects

d) True

the **dependent t**-**test**, "related
groups" indicates that the same participants are present in both
groups

1. What is a characteristic of the repeated-measure design?
A. The test requires a larger sample size compared to a
between-subjects design.
B. More than one measure is taken from each subject.
C. There are usually two groups of subjects to be compared.
D. The appropriate hypothesis test is typically
independent-samples t-test.
2. Which is the best way to reduce the variance in the
distribution of means (also called sampling distribution) when
conducting a t test?
A. Ensuring that the...

Explain the differences between a research design that utilizes
an independent measures t-test to analyze the data, and a repeated
measures t-test to analyze the data.

When we compute an independent-samples t-test, we are
looking to see if there are significant differences between the
means of two independent groups, each measured on a different level
of the independent variable.
True or False
When we compute a paired-samples t-test, we are looking
to see if there are significant differences between the means of
two independent groups, each measured on a different level of the
independent variable.
True or False
If the p-value is > than 0.05, the...

Question:
Please indicate if the following are independent or paired samples
of t-tests:
a) Attitudes of 8th graders toward art before and after visiting a
museum on a field trip
b) Differences in political opinions of father and sons
c) Differences in rates of attendance at Rutgers football games for
students raised in New Jersey and those raised
in Pennsylvania
d) Differences between freshman and sophomores in the class on time
spent studying
e) A comparison between education levels of the...

1) A researcher is running an experiment on the effectiveness of
three different energy drinks. She randomly selects 60 individuals
from the population and evenly splits them into three groups, each
of which consumes a different energy drink.
a. The null hypothesis for this test is that at least one of the
three groups will be different. True or False?
The statistical results of the test are as follows: F(2, 47) =
6.24, p < .05.
b. In the above...

Explain answer
Researchers can also compare and evaluate and the differences
between two means from independent samples using values of
z.
True
False
Researchers can compare and evaluate and the differences between
two means from dependent samples using values of
t.
True
False

Consider the following data from a repeated-measures design. You
want to use a repeated-measures t test to test the null hypothesis
H0: µD = 0 (the null hypothesis states that
the mean difference for the general population is zero). The data
consist of five observations, each with two measurements, A and B,
taken before and after a treatment. Assume the population of the
differences in these measurements are normally distributed.
Observation
A
B
1
1
3
2
3
4
3...

QUESTION 1
The samples are necessarily considered a dependent when
a.
repeated measures are made on the same subjects
b.
both groups consist of males
c.
both groups consist of 8th grade pupils
d.
any of the above is true
QUESTION 2
Observations are dependent when
a.
the same subjects have been used for both sets of
observations
b.
subjects have been matched on some variable related to the
varialbe observed
c.
either of the above is true
d.
the...

2. What aspect does the repeated measure test decrease when
compared to an independent t test?
4. A within design uses a _______ test statistic and a between
design uses a _______ test statistic.
a. independent/paired
b. one sample/paired
c. paired/independent
d. one sample independent
6. A between design is when ________.

1A. the most appropriate t-test if you are comparing means for
two separate groups that have no relationship to each other?
paired samples t-test
independent samples t-test
dependent samples t-test
none of the above
Which of the following tests are necessary to find out the
details of ANOVA?
Chi-Square
correlation
regression
post hoc test

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