All Questions
Tagged with multiple-comparisons chi-squared-test
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Is there a statistical test where you test whether any of multiple separate analyses of variances or chi-square tests are statistically significant?
Is there a statistical test where you test whether any of multiple separate analyses of variances or chi-square tests are statistically significant?
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Post hoc after a 2xN chi-squared test
I have two groups of people, and I want to determine if there's a significant difference based on their language. My data consist of word frequencies (how many times a person sayed a given word in a ...
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Chi-square test with mixed samples from two normal distributions
My question is quite similar to Chi-squared testing for say TWO samples from TWO distributions, however I want to go a little further.
So, suppose I have a N pairs of samples from two normal ...
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Multiple goodness of fit tests for multinomial proportions of unbalanced classes
I am considering a case where I have a nominal variable with $L$ levels (let us say $L=2$ for simplicity) and a bunch of continuous features. I would like to test if the most centrally located point ...
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Is p-value correction necessary/required for this problem?
Suppose I have multiple regions of a tissue that consists of multiple subtypes of a tumor. I want to compare the significance of differences between these various tumor subtypes (i.e How they differ w....
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Definition of 'independence' of comparisons in Multiple-Comparison - Bonferroni Adjusted Standardized Residuals for Chi-Squared Test
I have provided a hypothetical example to illustrate my question. Assume an alternate hypothesis for a difference between two variables of interest (arbitrary for the example), analyzed with a chi-...
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Sample size and power analysis: Chi-square
Can someone help with a sample size analysis question?
Study design:
I have a sample randomly assigned to answer 1 of 5 different questions that vary in difficulty (1 - Easy -> 5 - Hard). The ...
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Need help with Type 1 error and large number of chi squared results
I have a received comment for my research that addresses concern on the 'volume of null hypothesis test' being performed throughout my study and if any corrections are being done to account for 'an ...
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How to determine if the results to a multiple choice question was statistically significant
I did a survey and had 41 people answer a multiple choice question, where they could only pick one answer. The frequencies included:
$A = 25$
$B = 12$
$C = 4$
$n = 41$
I want to know if there is a ...
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139
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How to test for a statistically significant difference between 3 groups?
MY PROBLEM: I need to test for statistical significance between the three groups. The problem comes when extremely large numbers are involved and the chi-square test is always significant. I read ...
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732
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Row wise significance testing? Chi squared on individual rows?
I have a table of counts with 4 columns and 25 rows. What statistical test should be used to asses significance for values within each row? In other words I want to perform significance testing on ...
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How to convert my output into a suitable table for ANOVA or Kruskwallis testing on SPSS?
Let's say I have asked an individual to classify images according to 3 fruits that he sees : apple, banana and kiwi. Then, I want to assess whether there are significant differences between the ...
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190
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Test to compare frequencies?
I want to be able to see if an insect has a statistical preference for flower colour, which test should I use as the data is frequencies and I assume using Chi-squared wouldn't work. For example I ...
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3k
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Correction for multiple comparisons for Chi-Square Test of Association?
Mock data:
df = pd.DataFrame({
'Treatment': [1, 2, 3],
'Success': [25, 29, 25],
'Fail': [48, 118, 92]
})
Where 'Treatment' represents three independent ...
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Distribution of probabilities from multiple statistical tests
I’ve been trying to analyze a data set comprised of a small number of human skeletons from 4 archaeological sites in the 800 B.C. to A.D. 1200 time period. Since little is known of the peoples from ...
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