chi-square test

  1. D

    Stattistical test for multiple reponses

    Hi to everyone, I ran a survey and one question was to indicate which accommodation (hotels, apartment, b&b, ...) respondents prefer when travelling. Thery were allowed to select more than one option. The survey was completed by two different groups: university students and workers aged 25-35...
  2. P

    Chi-square test for a binary outcome and beyond

    Hello Everyone, I'm quite concerned about the applicability of some non-parametric tests in the following example because it is adapted from a defended doctoral dissertation, yet there are (as I understand) technical flaws. My questions follow the example. It is a within-subject design with...
  3. E

    Chi-square test OK for repeated measures?

    Hello, I have conducted a 3 alternative forced choice experiment (3AFC) where participants had to combine one out of three visualizations with a specific sound. There were 4 sets of different visualizations (a set consisted of 3 visualizations) and these sets were presented together with 3...
  4. C

    Which test in Spss is appropriate for my case

    In my questionnaire I had the 5 scale likert type question “How whould you evaluate new technologies?” (1: entirely negative, 2: relatively negative, 3: neutral, 4: relatively positive, 5: entirely positive). My sample was 400 people (selected with a non-probability procedure) of which none...
  5. M

    chi-square test for nested models

    Consider 2 models A and B. A (5 free parameters) is nested within B (6 free parameters). Imagine that we do an experiment and acquire data from N = 21 participants. We fit models A and B to each individual dataset by minimizing Pearson's chi-square statistic. Chi-square values are generally...
  6. B

    Goodness of fit test for categorical data with non-negative real numbersca

    An experiment that I conduct has 5 outcomes: A, B, C and D. I conduct 12 trials for this experiment. I observe, for example: Outcome : Frequency A : 2 B : 3 C : 0 D : 5 E : 2 Now, I have a model that predicts the...
  7. I

    Chi-Square Triangle Beer Test with weird answers...

    I am trying to help develop a test for deciding if two different beer recipes taste statistically different under a blind triangle test. I created an equation in Excel to calculate the CHI-Square value and it works most of the time (which is worrying because it should work all of the time.) Upon...
  8. F

    Prospective study. What test would be appropriate?

    Hey there! I am practicing on these data I have and I want to apply a statistical test. I want to compare 2 treatments: evolution and incidence of a certain disease after treatment. There were 3 groups taken into study: treated with A (n=78), treated with B (n=65) and C=control group...
  9. B

    Chi-square influential categories

    I have counts of events in a number of categories and an a priori expected frequency for those events. Clearly, this is a standard chi-squared. However, I am looking for a test that will tell me whether the chi square test would still be significant if I eliminated certain categories from...
  10. M

    Is it appropriate to use a chi squared test?

    Just checking if it is appropriate to use a chi-squared test to determine the association between ethnicity and history of drug use? :):)
  11. M

    Alternatives for logistic regression?

    Hey everyone! I need some help because I am not really happy with the data analysis for my thesis. I am investigating the prognostic power of 3 quantitative and 2 qualitative variable on a dichotomous outcome. First off I wanted to know which set of variables is the best to predict the...
  12. A

    Rao-Scott chi-square correction

    I have a multiple-response variable, and believe I need to use a Rao-Scott correction to the chi-square test. I am using Excel and only have the tools/information to do a first-order correction. I want to make sure I am doing it correctly... chi-squared (corrected) =...
  13. S

    Chi-square test followed by testing with subgroups

    Just checking that I'm thinking about this right... I have the number of units sold for 3 years by season: Spring 3000 Summer 3500 Autumn 4000 Winter 5500 If I run a chi-square test of independence with: alpha = 0.05, and expected value for each cell = 4000, I would find the number of units...