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Forum: Statistics

Statistics course and homework discussion. Elementary statistics.

  1. Sticky Thread Sticky: Forum Guidelines: Smart posting behavior pays off

    Welcome to talkstats.com, the place for statistics help. This is a guideline for people who want to ask a question on this forum and value a...

    Started by TheEcologist‎, 11-27-2010 12:13 PM
    • Replies: 1
    • Views: 196,807
    07-16-2014, 11:01 AM Go to last post
  2. Arrow Sticky Thread Sticky: We only provide homework help to those who show effort

    Welcome to Talk Stats Forum. In order to keep homework help effective and efficient, we request all members to abide by these guidelines: 1)...

    Started by quark‎, 09-30-2005 09:44 AM
    • Replies: 0
    • Views: 66,786
    09-30-2005, 09:44 AM Go to last post
  1. ANOVA help

    Which kind of ANOVA analysis can I perform if I have two treatment variables: A with 3 levels and B with 7 levels? Consider that for each test I...

    Started by whitman‎, 10-14-2008 08:15 AM
    • Replies: 1
    • Views: 2,572
    10-16-2008, 07:26 AM Go to last post
  2. Question ANOVA help - comparing growth rates between groups with 3 replicates in each group

    Hi I'm really pretty lost, statistics have never been my strong point. I need to test whether my growth rate differences between trees are...

    Started by J@cki3‎, 09-30-2014 06:23 AM
    anova, excel, growth rate, replicates
    • Replies: 1
    • Views: 2,815
    09-30-2014, 01:50 PM Go to last post
  3. ANOVA Help - why is my r-sq pred at 0%?

    Hi All I am currently conducting a Central composite design. It is full design with 3 factors. I have double checked my data entry and everything...

    Started by xbarcrawl‎, 11-28-2014 06:38 AM
    • Replies: 9
    • Views: 2,226
    11-30-2014, 04:33 PM Go to last post
  4. ANOVA help for psych project! emergency!!

    hi, I am currently writing a research paper for an experiment we ran in my psychology research methods class, and am really confused as to how to...

    Started by rck802‎, 04-12-2009 08:43 PM
    • Replies: 1
    • Views: 2,127
    04-13-2009, 08:08 PM Go to last post
  5. ANOVA help!

    Can anyone help with the analyses of the ANOVA output from SPSS. My thesis ihas a two tailed hypothesis and the ANOVA has produced the F values and...

    Started by jenny‎, 05-07-2006 07:21 AM
    • Replies: 1
    • Views: 1,966
    05-07-2006, 08:14 AM Go to last post
  6. Anova help!!!

    I'm just finishing the proposal for my dissertation and i am totally confused! So : I have 4 IV AND 2 DV and i don t know what type of anova to do...

    Started by Merisor‎, 11-26-2012 04:39 PM
    • Replies: 5
    • Views: 1,200
    11-27-2012, 08:28 PM Go to last post
  7. ANOVA help..

    Im having some doubts about my answers, can someone confirm? Than you so much! A researcher reports and F-ratio with df= 2,36 for an...

    Started by junebug89‎, 05-04-2009 10:37 PM
    • Replies: 0
    • Views: 4,851
    05-04-2009, 10:37 PM Go to last post
  8. Anova Homework Problem

    I have this homework that gives the mean of each of the treatments but no data with it. I just a little confused on how I would calculate the SStreat...

    Started by ang6705‎, 11-16-2010 07:12 PM
    • Replies: 1
    • Views: 2,732
    11-17-2010, 12:28 AM Go to last post
  9. Exclamation ANOVA Homogeneous Subsets

    Hi There, Sorry if this is a really silly question... I've run a 1-way ANOVA on some of my data, with a TUKEY HSD and S-N-K Post-Hoc test (as...

    Started by brooksclaire‎, 12-11-2013 02:48 PM
    • Replies: 3
    • Views: 13,843
    12-12-2013, 08:05 AM Go to last post
  10. ANOVA in SPSS

    Hello all! I have a population of 76 students, separated into 3 sample groups (all differing in quantity) based on the factor (self-regulation). I...

    Started by kf_123‎, 03-15-2015 09:08 AM
    • Replies: 0
    • Views: 1,189
    03-15-2015, 09:08 AM Go to last post
  11. ANOVA interaction interpretation (verbal)

    >...

    Started by Rsinton‎, 04-24-2012 06:01 PM
    • Replies: 0
    • Views: 2,088
    04-24-2012, 06:01 PM Go to last post
  12. ANOVA interactions,Tukey HSD

    Hello I am analyzing behavioral data on face processing. This is a within-subject 3x2x2 design. When I run repeated-measure ANOVA, I obtain...

    Started by valgo3117‎, 09-17-2008 05:59 AM
    • Replies: 1
    • Views: 8,936
    09-17-2008, 09:15 AM Go to last post
  13. ANOVA interpretation

    Good morning, Please excuse the simple question but I am looking for a good resource on how to interpret the ANOVA results from a Likert-type...

    Started by lph2005‎, 11-06-2008 08:12 AM
    • Replies: 3
    • Views: 3,878
    11-06-2008, 06:18 PM Go to last post
  14. ANOVA issue with experimental design

    Hey guys; I am evaluating the effects that various factors may or may not have on the output of a process. Each of the factors has a different...

    Started by yesmanno‎, 09-05-2013 10:39 AM
    anova, experimental design
    • Replies: 3
    • Views: 1,458
    09-06-2013, 07:31 AM Go to last post
  15. ANOVA lack of fit?

    Hi guys,I'd really appreciate your help. I am working on an analysis in Minitab and have run my normal plot of effects in order to tell me which...

    Started by xbarcrawl‎, 11-13-2014 05:45 PM
    • Replies: 2
    • Views: 4,475
    11-14-2014, 10:54 AM Go to last post
  16. ANOVA maybe?

    I realized the answer but can't see how to delete.

    Started by heeeeeellllllpppppppppp‎, 12-15-2016 07:43 PM
    anova, compare means, f test, t test
    • Replies: 0
    • Views: 2,386
    12-15-2016, 07:43 PM Go to last post
  17. anova model insignificant

    I ran a two-way ANOVA (standard RCBD) in SAS. The model returns as insignificant P=.23. I'm a little unclear as to how to interpret this; I assume...

    Started by brownmoses‎, 12-14-2008 06:16 PM
    • Replies: 1
    • Views: 3,381
    12-15-2008, 05:18 AM Go to last post
  18. ANOVA multiple comparisons corrections

    How would you perform multiple corrections when using the same data for two separate ANOVAs? Example: Groups AAA, BAA, ABA, BBA, AAB, ABB, BAB,...

    Started by jmlove‎, 03-13-2013 06:04 PM
    • Replies: 3
    • Views: 1,733
    03-14-2013, 03:33 PM Go to last post
  19. ANOVA normality

    Hello all, a quick question on checking normality before applying ANOVA - Just have 3 groups in the ANOVA model, therefore, checking whether data...

    Started by Scone‎, 05-29-2015 05:42 PM
    • Replies: 4
    • Views: 1,847
    05-30-2015, 04:07 PM Go to last post
  20. ANOVA Not Significant, but Post-Hoc Tests Are and Vice Versa

    Hi, I have a question regarding overall significant levels using ANOVA vs. Tukey's HSD test. Running the model I get this output.. ...

    Started by nebulusx‎, 08-03-2012 06:48 PM
    • Replies: 0
    • Views: 2,686
    08-03-2012, 06:48 PM Go to last post
  21. ANOVA on Correspondence Analysis scores

    Dear All, I have heard about performing ANOVA on the scores of CA. It sounds new to me, and I would appreciate if anyone could comment on this,...

    Started by gianmarco‎, 10-30-2009 01:19 AM
    • Replies: 0
    • Views: 2,582
    10-30-2009, 01:19 AM Go to last post
  22. ANOVA on different metrics

    Hi everyone! Hoping you can help me with a question. I am doing a paper for university. I did a test on a group of people so as to measure their...

    Started by pmcarosella‎, 09-03-2017 09:15 AM
    • Replies: 3
    • Views: 326
    09-03-2017, 02:28 PM Go to last post
  23. ANOVA One or Two factors ?

    Hi, After discussion with some colleagues, I'm a little bit confused about one or two factors should I use to analyse my data ! Actually, I...

    Started by statser‎, 03-02-2009 05:44 AM
    • Replies: 6
    • Views: 2,517
    03-05-2009, 04:59 PM Go to last post
  24. ANOVA or ANCOVA

    If I have a quasi experimental design, pre-test, post-test, I thought the ANCOVA needed to be used with a non equivalent group? Then do you need to...

    Started by chungster‎, 04-18-2009 09:45 AM
    • Replies: 1
    • Views: 2,545
    04-18-2009, 07:26 PM Go to last post
  25. ANOVA or ANCOVA?

    Hi, IV: time (pre and follow-up), condition (experimental and control) DV: anxiety scores N: 23 (normally distributed) I want to know if CBT...

    Started by fellis‎, 08-13-2015 05:41 AM
    • Replies: 1
    • Views: 1,278
    08-13-2015, 06:46 AM Go to last post
  26. Smile Anova or Chi Square for checking significant related effects

    Hi, I am a newbie to Data Analysis and would be thankful if you could explain to me if for this exercise I use Chi Square or Regression ( looking...

    Started by kitinkywinky‎, 04-15-2016 12:51 PM
    • Replies: 4
    • Views: 1,484
    04-16-2016, 04:47 AM Go to last post
  27. Lightbulb ANOVA or Chi Square for Nominal Non Parametric Data

    Dear TalkStat Forum members, I was hoping to get some advice over whether I am using the appropriate test for data that I have. The notes of 70...

    Started by DeeD‎, 05-08-2015 03:37 PM
    chi square, nominal, non-parametric
    • Replies: 2
    • Views: 1,629
    05-11-2015, 01:36 AM Go to last post
  28. ANOVA or Correlation?

    Hi everyone, I'm researching foreign language classroom anxiety and with a 33-item 5-point likert scale and got stuck due to some discrepant...

    Started by Jamiryo‎, 07-17-2013 05:03 AM
    • Replies: 8
    • Views: 2,538
    07-19-2013, 03:22 PM Go to last post
  29. Lightbulb ANOVA or Kruskal Wallis

    Dear Stats experts here... I have a question: I am counting cells in histology slides of certain timepoints after a treatment. day 0, day...

    Started by med1234‎, 10-18-2012 04:02 PM
    anova, kruskal wallsi, non parametric, parametric
    • Replies: 13
    • Views: 4,357
    10-24-2012, 11:09 PM Go to last post
  30. ANOVA or Kruskall-Wallis??

    I would like to look at the differences in data between 3 sites, with slightly but not vastly different sample sizes. My data does violate...

    Started by klm‎, 08-17-2011 06:02 AM
    • Replies: 2
    • Views: 3,143
    08-17-2011, 04:38 PM Go to last post
  31. Anova or mixed model, and is non-orthogonality a problem?

    Hello, I am trying to test whether the following variables affect likelihood of visits by squirrels to feeding stations: Distance of feeder...

    Started by lkay‎, 11-08-2012 11:53 AM
    • Replies: 8
    • Views: 2,174
    11-11-2012, 05:31 PM Go to last post
  32. ANOVA or not ANOVA

    I'm conducting an experiment to compare antioxidant activity in orange peel, juice and dried peel - samples were prepared in various concentrations...

    Started by Higurashi‎, 06-25-2013 04:38 AM
    • Replies: 3
    • Views: 2,393
    07-16-2013, 06:07 AM Go to last post
  33. Anova or Regression

    I'm seriously bad at stats and sadly for my dissertation its a must! I have chosen to look at individual attitudes towards CCTV - therefore my DV...

    Started by mysti-211‎, 02-22-2014 07:50 AM
    • Replies: 1
    • Views: 1,111
    02-22-2014, 10:10 AM Go to last post
  34. ANOVA or regression?

    Hi, I am struggling with which analyses to use for my dissertation project and am wondering if anyone here can help me more than the mahoosive...

    Started by scotgirl89‎, 03-29-2011 12:26 PM
    • Replies: 3
    • Views: 3,132
    03-29-2011, 04:09 PM Go to last post
  35. ANOVA or repeated Measures ANOVA?

    Hi, I'm not sure whether I should use a straight forward 1-Way ANOVA or a Repeated Measure ANOVA for this analysis... Here is my dataset : ...

    Started by Puffin617‎, 05-21-2009 11:02 AM
    • Replies: 2
    • Views: 3,164
    05-22-2009, 02:00 AM Go to last post
  36. ANOVA or T-test

    Hi I have two categorical variables as in below example: Region Dim Value PK Dim1 2 PK Dim2 3 PK Dim3 -1 PK Dim4 -4 US Dim1 -0.5 US Dim2 4.3...

    Started by true_friend‎, 03-11-2017 07:09 AM
    anova, group comparison, t-test
    • Replies: 1
    • Views: 1,357
    03-13-2017, 06:54 AM Go to last post
  37. ANOVA OR t-test?

    Hi, I have done a study which first measure the psychological characteristics of 130 individuals at time 1 and again measured the same...

    Started by sant2910‎, 11-10-2011 06:50 AM
    • Replies: 3
    • Views: 2,546
    11-11-2011, 02:28 PM Go to last post
  38. ANOVA past exam question help

    Hi everyone, I'm looking over last years exam paper and one of the questions asks me to interpret an one-way independent ANOVA SPSS output and report...

    Started by ajr237‎, 04-11-2015 06:01 PM
    • Replies: 0
    • Views: 867
    04-11-2015, 06:01 PM Go to last post
  39. Question ANOVA Perhaps, Any Ideas Welcome

    I have this data set to analysis in which the varables are as follows: the effect of a dyads relationship (i variable 1, 2 levels), advice source...

    Started by gamouse‎, 08-22-2007 08:11 PM
    • Replies: 2
    • Views: 2,190
    08-23-2007, 06:09 AM Go to last post
  40. Anova Please help me

    I've run Anova in excel now what i'm confused about is how can i infer that the size of leaves differ in the three groups or they dont differ? Could...

    Started by kripa.sharma‎, 12-12-2008 11:45 AM
    • Replies: 2
    • Views: 2,765
    12-12-2008, 03:35 PM Go to last post
  41. ANOVA plots

    Hi all, Last minute stats exam panic.... In a 'theory' question we could be asked to give example plots for ANOVAs where: There is/isn't an...

    Started by Psych‎, 12-09-2005 08:25 AM
    • Replies: 2
    • Views: 6,863
    12-09-2005, 08:45 AM Go to last post
  42. ANOVA pls help I have limited time to figure this out

    I'm not asking for answers, just which labels should go in the columns heading of excel. (Im thinking the management styles) A study to determine...

    Started by Emperor‎, 12-09-2008 12:27 AM
    • Replies: 3
    • Views: 3,342
    12-09-2008, 01:11 PM Go to last post
  43. ANOVA post-hoc analysis in R

    Hi everybody, I have already analyzed my dataset using two-way ANOVA in R. The result is that both variables have a significant influence, but no...

    Started by moartl‎, 08-17-2009 12:58 PM
    • Replies: 1
    • Views: 7,954
    08-18-2009, 07:59 AM Go to last post
  44. ANOVA problem: main effect vs factorial

    Hello, I have a problem with my ANOVA analysis. I am anlayzing 3 categorical factors for a dependent (continuous) variabel. In STATISTICA (the...

    Started by M&M‎, 10-12-2010 05:00 AM
    • Replies: 1
    • Views: 4,494
    10-21-2010, 04:48 PM Go to last post
  45. ANOVA ques----can someone help?

    Got a question about variances, am very new to stats

    Started by Saralle‎, 11-15-2005 08:57 PM
    • Replies: 3
    • Views: 3,239
    11-15-2005, 09:29 PM Go to last post
  46. ANOVA question

    Hi! I have a 3 x 3 ANOVA design for a study and I want to get some clarification. Specifically: Factor A = Site of Location; 3 levels (Area...

    Started by jamesmartinn‎, 02-27-2008 10:29 PM
    • Replies: 3
    • Views: 2,491
    02-28-2008, 04:06 PM Go to last post
  47. ANOVA question

    I have a large data set and I find that my distribution of residuals has a "heavy tail" distribution. the normal quantile plot looks like this: ...

    Started by thaumaturgy‎, 08-29-2009 06:38 PM
    • Replies: 1
    • Views: 3,314
    08-30-2009, 05:24 PM Go to last post
  48. ANOVA question

    If three groups have been compared with ANOVA and it is given a p = 0.023 how significant is the difference

    Started by mrtnduff‎, 11-25-2010 07:06 AM
    • Replies: 1
    • Views: 2,516
    11-25-2010, 11:21 AM Go to last post
  49. ANOVA question

    A researcher conducted a study to examine the effect of creatine supplementation upon peak power, which was assessed using a 30-second Wingate...

    Started by DGC1989‎, 04-08-2011 07:24 AM
    • Replies: 1
    • Views: 2,202
    04-08-2011, 07:53 AM Go to last post
  50. ANOVA Questions

    Delete thanks

    Started by humanpiranha‎, 03-18-2012 02:29 AM
    • Replies: 1
    • Views: 1,376
    03-19-2012, 04:47 AM Go to last post
  51. Anova related question

    Hi everyone. I have a small doubt about reporting Anova result. I am examining 70 design among 40 students, so calculated the anova based on the...

    Started by samjanwer‎, 08-16-2014 01:02 AM
    anova
    • Replies: 7
    • Views: 2,076
    08-16-2014, 09:26 PM Go to last post
  52. Anova Repeated Measures to compare three different variables?

    In a psychology research (not published yet) an Anova Repeated Measures test was used to compare three different variables measured (at the same...

    Started by flegmatiq‎, 11-20-2016 02:04 AM
    anova repeated measures
    • Replies: 0
    • Views: 1,024
    11-20-2016, 02:04 AM Go to last post
  53. ANOVA results and confidence intervals

    Hallo can someone help me with this problem, please? I have done a univariate 2 factor ANOVA with spss. The problem is that the 95% confidence...

    Started by sirhoppel‎, 09-11-2006 11:05 AM
    • Replies: 2
    • Views: 8,109
    09-11-2006, 08:53 PM Go to last post
  54. ANOVA Sample sizes

    I have data on different independant populations which i would like to conduct ANOVA analysis on. I have taken measurements on samples from each...

    Started by DrGonzo‎, 08-27-2009 04:35 AM
    • Replies: 1
    • Views: 2,381
    08-27-2009, 06:18 PM Go to last post
  55. ANOVA shows me there's a difference, but I want to know WHO is different

    So I have an ordinal variable divided in to 4 groups. ANOVA shows me there is statistically significant difference between the means. But I need to...

    Started by mjbarteau‎, 01-08-2014 10:05 PM
    • Replies: 2
    • Views: 1,271
    01-09-2014, 08:59 AM Go to last post
  56. ANOVA Simple effects help

    When finding a significant interaction effect in a factorial ANOVA and then doing a simple effects of all of your comparisons, do you need to divide...

    Started by statss‎, 12-07-2011 05:11 PM
    • Replies: 4
    • Views: 2,557
    12-07-2011, 05:34 PM Go to last post
  57. ANOVA Stuff...

    Hey all. I was wondering if someone would be willing to explain this to me in a language I can understand. I realize that this is pretty basic stuff,...

    Started by AyEmmKay‎, 10-04-2009 04:04 PM
    • Replies: 2
    • Views: 2,390
    10-11-2009, 02:38 PM Go to last post
  58. ANOVA sums of squares proof

    How can I prove that a constant d can be added to each x_{ij} without affecting any of the ANOVA sums of squares? I know the computing forms of...

    Started by knut-o‎, 02-05-2011 02:42 PM
    • Replies: 2
    • Views: 7,490
    02-05-2011, 04:22 PM Go to last post
  59. ANOVA table

    can someone help me based on this graph to fill out an anova table? So far, I've concluded: A = 2 levels B = 2 levels k = 4 cells total n =...

    Started by jamesmartinn‎, 05-08-2009 12:38 PM
    • Replies: 1
    • Views: 5,239
    05-09-2009, 09:30 AM Go to last post
  60. Anova table

    I'm performing regression analysis on a time series data, (on SPSS) n the ANOVA table that I am getting contains the sum of squares for residuals =...

    Started by khhyatii‎, 08-30-2009 03:58 PM
    • Replies: 0
    • Views: 3,151
    08-30-2009, 03:58 PM Go to last post

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