Question

How many groups are you allowed to have in an independent samples t-test? How many groups are you allowed to have in an one-way ANOVA?

Answer #1

**independent-samples t-test** is used to
compare the means of **two** unrelated or independent
groups using the dependent variable (test variable) and the
independent variable (grouping variable). These independent t-tests
cannot be used to make comparisons between more than two groups.
But, this can be done using the **one-way analysis of
variance (ANOVA)** which compares the means of **three
or more** unrelated or independent groups and determines any
statistically significant differences between them.

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

HW 6: z-test, t-test for independent samples, t-test for related
samples, 1-way ANOVA
Researchers wanted to explore different treatment methods to
effect memory skills in high school freshmen. Subjects were given a
memory test (under multiple conditions) these were the results:
Group 1
10, 8, 9, 11,
8, 9, 7, 6,
9, 8
Group 2
12, 10,
11, 9, 13, 8, 9, 12, 11, 11
Group 3
10, 9, 10, 9, 11,
8, 7, 9, 10, 11...

What is the appropriate test (e.g., Independent Samples T Test,
Paired Samples T-Test, ANOVA, Correlation) and why (e.g., what type
of variables are you analyzing)?
What is the effect of living arrangements on the overall
satisfaction at University.

How many independent variables and how many dependent variables
are in a five-way, between groups, multivariate ANOVA?

What causes the p-value to be the same in an independent sample
t-test and as a one-way ANOVA?
1. Is it because dependent variables are the same while the
independent variable is different across the two methods?
2. Because ANOVA is a special case of the independent samples
t-test.
3. Because ANOVA is a generalization of the independent sample
t-test?

I need an explanation on how a one-way ANOVA test is different
from an independent samples t-test. Please try to include actual
real-life examples will make it easier to process the material and
easier to help me understand

how do you decide whether to use an independent groups
t test or a correlated t test ?

Discuss how the t-test for correlated groups and the t-test for
single samples are alike and different.

1. A researcher is comparing scores from two treatment groups
using independent samples t test. Use a Hartley’s
F-max test to examine this assumption (each group has 6
participants, s2 in group 1 is 20, and s2 in
group 2 is 15, set alpha level at .05). Also, how should this
researcher estimate the standard error in the independent samples
t test?

What is the difference between a t test for independent
samples and a t test for related (dependent) samples?
Give an example of when you would use each?

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