study design

  1. C

    associations and correlation VS Group differences

    Hello to all Talk Stats members! I would really appreciate your help on an issue that's really troubling me... In a previous post of mine I talked about the following likert type question I have in my questionnaire; "How would you evaluate new technologies in your life?" (1: entirely negative...
  2. D

    Study design flaw - no participant IDs.

    Hi :wave:, I have been asked to do the statistical analysis aspect on a mixed methods study that was supposed to follow a pre/post analysis method in regards to the quantitative aspect of it. The hypothesis on the study is to assess: 1) If a leadership intervention had a statistical...
  3. K

    Sample size calculation for cross-sectional survey (2 Time points)

    I am working on a study design for a study to determine behaviors and structural barriers to health seeking at baseline for HIV negative young women 15-19 years, conduct interventions for 2 years and later study their behavioral changes and remaining structural barriers after intervention. This...
  4. V

    Anova? Manova? multiple T-tests? (newbie question warning)

    Hello all I have study data to analyze, and my normal stats guru is out of town. The study (some facts altered to protect the innocent) goes like this: Research question: Do jumping-jacks have a significant effect on the body? 10 subjects came into the lab (individually). They had 5...
  5. victorxstc

    Is my study case-control or retrospective cohort?

    Hi AFAIK if we split the sample by the exposure, it is retrospective cohort; and if we split it by the disease, it is case control. I am studying the association between malocclusion and the efficacy of mastication. I have divided the sample into two groups: people with and without...
  6. T

    How to analyze different, complex data sets?

    I'm looking for a good way to compare data sets. For 20 months, we collected larval fish using standard sampling gear (produces larval fish/cubic meter) at 31 sites along 95 km river miles. We identified, categorizes to developmental stage, and measured several hundred thousand larval fish...