parametric test

  1. U

    Help! What analysis should be performed on a dataset like this?

    I'm sorry but I really need help on how to perform an analysis on these data. This dataset, in which is studied the number of calories emitted during exercise on 24 observations (subjects), consists of three variables, all quantitative: ho (heat output) is the dependent variable and is the...
  2. S

    Need help in deciding whether to use parametric test or non parametric test ?

    I am working on an assignment. I have sample study of 9 participants suffering from a mental disorder and the participants mood scores are being measured at three time points after subjecting these participants to a new intervention.The mood scores are normally distributed. Should I run a...
  3. D

    Parametric vs nonparametric tests

    I'm pretty confused about the conditions in which I should use a parametric or a nonparametric test to compare the means of 2 (or more) populations and would be very grateful if someone would explain it to me. I know that if the distribution of the sample is not normal, non-parametric...
  4. M

    Parametric or non-parametric test?

    Dear all, I’m not fluent in statistical data analysis and I can’t afford the services of a professional. Please I really need your suggestions with the following: The first column of my table represents the different sampling sites from which I obtained different parts of a plant species...
  5. S

    Justify the use of parametric tests on non normally distributed data

    Hello there. I have 5 Likert scale questionnaires that have been answered by the same people who have been randomly selected (N=24) and i have the following problem: I first test the data distribution of each scale in order to determine what statistical analysis tests should i employ...
  6. K

    SPSS - Kolomogorov-Smirnov Test

    I am a masters student and I am trying to assess which tests to use. I am checking for normal distribution. I have conducted a Kolomogorov-Smirnov test by going into descriptives>explore>plots>check for normality. I was given a value for 0.000. However I also conducted a Kolomogorov-Smirnov...
  7. V

    statistics 101-statistical tests help!

    Hi. I'm really sorry if this question is in the wrong place. I'm trying to figure out and justify statistical tests to be used for a research proposal - don't have to do the tests just explain and justify my selection. I am comparing 2 groups. group a has 1 days training and group b has 5...
  8. A

    Distribution of a subset of the complete sample

    Dear all, My question can be easily misunderstood, so please allow me to briefly explain the experimental conditions. I have measured a variable from 120 individuals in total, 60 of one genotype and 60 of another. The distribution of the complete sample of each of the two genotypes is...