2-way anova

  1. C

    What test should i use? THESIS HELP!!

    Hi, I am currently studying Zoology at university. I am currently in my final year conducting my dissertation. I have completed my data collection and I am now on to my statistics. My dissertation looks at the relationship between light intensity and growth rate in marine sponges. I have 5...
  2. P

    Getting SS for specific groups in 2 way ANOVA

    I am trying to isolate the SS from the interaction between two of three groups in the analysis, but I do not know how to do this through the syntax. There is an interesting interaction but I need to parse out the SS for each of the groups. Here is my current syntax: GLM EPATotWPre KATotWPre...
  3. S

    Variance main effect influencing interaction effect

    Does variance of one of the two main effects in a 2-way (ANOVA) interaction influence the significance of the interaction effect? Two analyses are being compared: of brain area A and brain area B. For both brain areas A & B, a 2-way AVOVA is being performed: Treatment (2) x Valence (3)...
  4. B

    1-way vs 2-way repeated measures ANOVA with missing data

    I have performed an experiment where I tested how long it took users to reach various points on table and their perception of how difficult the task was to perform under various conditions. The user used either a handheld robot arm, or a handheld wand to reach the required points. In addition...
  5. M

    2-way ANOVA or repeated measures ANOVA ?? please help for my thesis

    Dear all, I am working on this for a couple of weeks now and found several guides and examples on both of the methods above, but no example really fits my topic. I tried both of them and lots more with my data but just dont know, which procedure produces the RIGHT results.... I have 90...
  6. T

    help w/ anova test selection & factors (groups)

    Hello there. Stats noob here I'm an IT major so apparently stays is required for me. I have an assignment here and one of the questions is really tripping me up and I'm about to just bag it. help with repeated measures anova? "Moore Kennedy Furlonger & Evers (1999) used the 60 item Bem Sex...
  7. L

    Best way to analyse my data: 2-way repeated measures anova?

    :wave::wave: Hi TalkStats :wave::wave: I have a data set which is outlined in the table below: \begin{tabular}{|l|cr|} \hline ID & baseline & response \\ \hline 1 & $x_1$ & $y_1$ \\ 1 & $x_2$ & $y_2$ \\ 1 & $x_3$ & $y_3$ \\ 1 & $x_4$ & $y_4$ \\ 2 & $x_5$ & $y_5$ \\ 2 & $x_6$ &...
  8. M

    2-way ANOVA on non-normal, hetergeneous data

    I'm trying to analyze growth data from chicks, and I need to perform the equivalent of a 2-way ANOVA (2x2 design, unequal sample sizes), but my data are heavily skewed with heterogeneous variances, and transformation, which I avoid when possible, isn't helping. I've searched for alternative...
  9. Y

    Independence of observation in 2-way ANOVA

    Hi, I'm a grad student in behavioural neuroscience. I am looking at individual difference in anxiety in animals. There are two groups of animals: one anxious and the other non-anxious. I present then with a potential threat and see if their anxiety levels are reflected on their...
  10. M

    Nested vs. 2-Way ANOVAs

    Hi! I'm conducting analyses on my MSc data set, and am a little confused about how to think about my data in terms of statistical tests. I have a series of data consisting of multiple dependent variables from 2 different sites. [Most of these dependent variables, though collected at each...
  11. I

    Q: within-subject ANOVA with 1 subject vs. 1-way ANOVA

    Hello people. I became curious if there is any difference between: 1-way ANOVA in a single subject for 3 conditions, 5 reps. vs. within-subject ANOVA in a single subject for 3 conditions, 5 reps. That is, if there is only one subject, is within-subject ANOVA the same as just usual...