ordinal data

  1. S

    Fixing behavioural difference of demographics

    Currently collecting employment/working satisfaction data from survey at different countries. Same set of questions is used. I have come across that people from some countries tend to be more optimistic/pessimistic than others. How can I take their answering behaviour into consideration when...
  2. S

    Does frequency distribution matter when using nominal/ordinal data?

    I want to do relationship analysis between different variables from questionnaire results that I've just collected and I've recently learned that you need to make sure certain assumptions are fulfilled before using certain analysis tools such as needing to have a normal distribution for your...
  3. E

    Sign differences in coefficients arising from using ordinal vs continuous data

    I run a simple OLS regression: y=a +bx+.....+e, I obtain an estimate of b<0. Prior researchers running the a similar regression obtain an estimate of b>0: I'm trying to reconcile this difference. The only methodological difference driving our results is the following: In my study...
  4. I

    Ordinal survey, 2 groups: looking for correlation between groups

    Hi I have an ordinal data set across 50 survey questions (same response scale for each question). The data is non-normally distributed for each question, and isn't suitable for conversion to interval data. Much simplified example attached. I need to be able to test if there is a...
  5. 3

    Conducting Factor Analysis on Data with Nominal, Ordinal, and Interval Data

    I would advice on conducting a confirmatory factor analysis on data from an instrument that contains nominal, ordinal, and interval data. I'd think to use, e.g., point biserial, polychoric, and product-moment for each respectively, but what about when they're all in the same CFA? Other posts...
  6. E

    Ordinal or continuous scale?

    Hello, I have carried experiments where the participants were asked to rate a parameter on a scale. The scale starts from “not heavy” to “heavy”; the subject could mark an X desired position (see enclosed picture). The data is normalized for each participant after each experiment (i.e. the...
  7. E

    3 values ordinal variable: Mann-Whitney or Chi-squared?

    Hello, I have an ordinal variable which assumes only 3 values. I need to do a comparison between 2 treatments. I used Mann-Whitney test, since is an ordinal. My "p-value" is quite high (0.9388) which is strange because the values distribution is quite different for each group. Then I...
  8. J

    Mann-Whitney U Test: Ordinal data with few categories

    Hello, I am trying to use the Mann-Whitney U Test to compare ordinal data between 2 groups, but the problem is that there are only 3 categories for my ordinal data. I have never seen the Mann-Whitney U Test be used on ordinal data with fewer than 5 categories. So I was wondering, what is the...
  9. N

    Post-hoc analysis for Fisher's Exact Test

    Hello all! I am using Fisher's Exact Tests to analyse a series of 2x2 contingency tables with small values. But are there any other tests I can use to say more interesting things about my results? (I am thinking of post-hoc tests, or possibly Kramer's V or Odds Ratio or other things that can...
  10. J

    Exploratory Study -- ordinal data questions

    Hello all, I’m a first time poster but have gained much insight reading through past threads. I’m running an exploratory study, containing a few different assessments, but I’m most concerned with the following: All participants will experience 15 scenario-based questions, where they are...
  11. D

    Getting my ordinal data ranked

    Hello, I have the following issue. I have data where 9 characteristics have been rated using an ordinal scale ("very important", "important", "neutral", "unimportant", "very unimportant"). I now want to bring the data in one rank so that I could e.g., say characteristic 5 is most...
  12. M

    Confirmation of correct test for repeated measures of ordinal data: Friedman's Test

    Dear Stats Community, I performed an experiment in which I measured the behavioral responses on an ordinal scale (1-4) of a group of non-human animals to a series of auditory stimuli (A,B,C,D). The order of the presentation of the stimuli was randomized, but each animal experienced all...
  13. M

    SEM: combining binary & ordinal variables

    In my research I surveyed participants after they had used a website. I have 28 items which related 8 different concepts. Which means I have 8 latent variables with 3-6 observed variables each. All items are measured with 7-point likert scales. Additionally I have a binary variable of whether...
  14. K

    Interaction effects of nominal and ordinal variables on binary dependant variable

    Hi! I'm doing an analysis of interaction effects of one binary nominal variable (medication used), one ordinal variable (duration of therapy ; 1-few weeks, 2-less than 3 months, 4-less than six months, 5-more than six months) and one interval variable (age) on binary dependant variable (0- does...
  15. J

    Inter-rater Reliability measure for ordinal data with multiple raters

    Inter-rater Reliability measure for ordinal data with multiple raters I am wanting to obtain a measure of IRR for a diagnostics tool on the NHS. 6 professionals assessed an individual on multiple health domains such as Behaviour Cognition Psychology Communication Mobility Each...
  16. @

    unrestricted cumulative probit model with vglm()---extend to a multivariate setting?

    Hi, all. I'm trying to model the transition of multiple, ordinal response variables on a continuous predictor (age). In this specific case, I'm investigating the ages at which a skeletal trait passes through a series of morphological stages. In anthropological parlance, this has become known...
  17. C

    Ordinal Data

    I have the following hypothesis: Novice drivers perceive road environments as more difficult when there are more pedestrians. I have the following data: - The category each driver falls in to (1. Novices, 2. Experienced, 3. Advanced) - Number of pedestrians identified in 5 separate sections...
  18. B

    Problem with SPSS Chart builder

    Hi there, I am trying to create a chart showing the results for a feedback questionnaire, preferably using a box plot, but also want to experiment with a simple dot plot or bar graph. I have responses form eight participants. There were 10 questions and each required the participant to a give a...