Exp Design - Exam 2

Question 1 of 10

1

Problem of multiplicity starts from which type of error?

Select one of the following:

Type I error
Type II error
Type III error
Type IV error

Explanation

Question 2 of 10

1

Multiplicity is the inflation of _______ over multiple tests

Select one of the following:

alpha
beta
psi
sigma

Explanation

Question 3 of 10

1

Multiplicity control procedures are based on which t statistics?

Select one or more of the following:

t value
variance estimat (s^2)
v degrees of freedom
MS
standard deviation (sigma)
alpha

Explanation

Question 4 of 10

1

Put the Multiple Comparison Tests in order from least to most conservative

❌
❌
❌
❌
❌

Drag and drop to complete the text.

Fisher LSD test

Bonferroni test

Hayter-Fisher test

False-positive test

Tukey & Tukey-Kramer test

Games-Howell test

Dunnett's test

Explanation

Question 5 of 10

1

Which is the most conservative multiplicity control adjustment?

Select one of the following:

Bonferroni adjustment to alpha
Hochberg-Bonferroni adjustment to alpha
Benjamini-Hochberg False Discovery Rate adjustment to alpha

Explanation

Question 6 of 10

1

Select from the dropdown lists to complete the text.

Dunn test with Bonferroni adjustment to alpha is ( less, more ) powerful with all-pairs comparison, and is reccommended to only be used for ( less than all-pairs, all-pairs ).

Explanation

Question 7 of 10

1

__________ is the most universal and most conservative multiplicity control adjustment. If a difference is found with this adjustment, a difference will be found with any adjustment.

Select one of the following:

Benferroni
Hochberg-Bonferroni
Benjamini-Hochberg False Discovery Rate

Explanation

Question 8 of 10

1

Steps for Dunn test with Bonferroni adjustment:

1. calculate ❌
2. calculate ❌
3. reject null hypothesis if P<❌

Drag and drop to complete the text.

Bonferonni alpha

ANOVA-modified Two-sample t

P value for each comparison

alpha for each comparison

alpha

a test statistic for each comparison

Hochberg-Bonferonni alpha

FDR alpha

Explanation

Question 9 of 10

1

Steps for Bonferonni adjustment to alpha

1. calculate ❌ for each comparison
2. calculate ❌ for each comparison
3. calculate ❌ for total number of comparisons
4. reject the nul if ❌

Drag and drop to complete the text.

a test statistic

ANOVA-modified Two-sample t

P value

alpha

beta

Bonferroni alpha

Hochberg-Bonferroni alpha

FDR alpha

P < Bonferroni alpha

P< FDR alpha

P< Hochberg-Bonferroni alpha

Explanation

Question 10 of 10

1

Select from the dropdown lists to complete the text.

FISHERS LSD TEST
--used for ( all-pairs comparison, comparison of control group with others ), ( may control familywise error rate, always controls familywise error rate )
Procedure:
1. calculate ( ANOVA-modified Two-sample t, Welch t' )
2. reject null hypothesis if ( t>t(table), q>q(table), t>D(table) )

	Created by Jo O'Bar almost 2 years ago

Quiz on Exp Design - Exam 2, created by Jo O'Bar on 24/10/2022.

Exp Design - Exam 2

Question 1 of 10

Problem of multiplicity starts from which type of error?

Select one of the following:

Explanation

Question 2 of 10

Multiplicity is the inflation of _______ over multiple tests

Select one of the following:

Explanation

Question 3 of 10

Multiplicity control procedures are based on which t statistics?

Select one or more of the following:

Explanation

Question 4 of 10

Put the Multiple Comparison Tests in order from least to most conservative ❌ ❌ ❌ ❌ ❌

Drag and drop to complete the text.

Explanation

Question 5 of 10

Which is the most conservative multiplicity control adjustment?

Select one of the following:

Explanation

Question 6 of 10

Select from the dropdown lists to complete the text.

Dunn test with Bonferroni adjustment to alpha is less more( less, more ) powerful with all-pairs comparison, and is reccommended to only be used for less than all-pairs all-pairs( less than all-pairs, all-pairs ).

Explanation

Question 7 of 10

__________ is the most universal and most conservative multiplicity control adjustment. If a difference is found with this adjustment, a difference will be found with any adjustment.

Select one of the following:

Explanation

Question 8 of 10

Steps for Dunn test with Bonferroni adjustment: 1. calculate ❌ 2. calculate ❌ 3. reject null hypothesis if P<❌

Drag and drop to complete the text.

Explanation

Question 9 of 10

Steps for Bonferonni adjustment to alpha 1. calculate ❌ for each comparison 2. calculate ❌ for each comparison 3. calculate ❌ for total number of comparisons 4. reject the nul if ❌

Drag and drop to complete the text.

Explanation

Question 10 of 10

Select from the dropdown lists to complete the text.

Explanation

Put the Multiple Comparison Tests in order from least to most conservative

❌
❌
❌
❌
❌

Dunn test with Bonferroni adjustment to alpha is ( less, more ) powerful with all-pairs comparison, and is reccommended to only be used for ( less than all-pairs, all-pairs ).

Steps for Dunn test with Bonferroni adjustment:

1. calculate ❌
2. calculate ❌
3. reject null hypothesis if P<❌

Steps for Bonferonni adjustment to alpha

1. calculate ❌ for each comparison
2. calculate ❌ for each comparison
3. calculate ❌ for total number of comparisons
4. reject the nul if ❌