1. Announcement:
    Want access to a chatbox?
    Dason ‎(Devorador de queso)
    05-10-2017
    Views:
    1,792
+ Post New Thread
Page 11 of 54 FirstFirst 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ... LastLast
Threads 601 to 660 of 3193

Forum: Statistical Research

Statistical theory and methodology. Mathematical statistics. Parametric inference. Nonparametric inference.

  1. Sticky Thread Sticky: Proof of the day

    In this thread we post one (or more if you can't wait) proof a day. I'll start by proving the that V=\sigma^2(X'X)^{-1} in the linear...

    Started by Englund‎, 01-18-2014 04:56 AM
    • Replies: 14
    • Views: 18,645
    10-11-2014, 12:02 PM Go to last post
  1. Correcting alpha for multiple anovas

    Hi! I have 7 different properties, all independent, that are being mesured. Each property has a control and three disease groups. All independent....

    Started by Szkeptik‎, 02-25-2017 03:30 PM
    • Replies: 1
    • Views: 1,469
    03-02-2017, 01:38 PM Go to last post
  2. correcting for early user bias

    Okay, forgive me if this is in the wrong place. Feel free to move it if it isn't. And please forgive me as I know VERY little about statistics and my...

    Started by hoodleehoo‎, 07-20-2015 01:38 PM
    • Replies: 7
    • Views: 2,260
    07-20-2015, 08:24 PM Go to last post
  3. correction for multiple comparisons to zero (one t-test) data is notmally distributed

    Hello, I am a PhD research student in the area of vision science. I am struggling to find a way to show that difference in eye position are...

    Started by lsween11‎, 03-07-2013 10:31 AM
    • Replies: 1
    • Views: 1,489
    04-01-2013, 02:19 PM Go to last post
  4. Correction for multiple testing or not?

    Hi all. I hope you can help me out! I have performed two microarray analyses: 1. Effect of knockdown of gene A on global gene expression levels...

    Started by tuur‎, 05-29-2015 04:15 AM
    • Replies: 0
    • Views: 978
    05-29-2015, 04:15 AM Go to last post
  5. Correction for multiple testing when tests are dependent

    Dear all, I have a following problem: given N variables, I calculate N(N-1)/2 correlation coefficients, each against each (this is commonly used...

    Started by jw3‎, 04-08-2011 04:24 AM
    • Replies: 3
    • Views: 7,691
    04-08-2011, 02:24 PM Go to last post
  6. Correlating A with B, half of subjects has a 0 value for A. Should I exclude them?

    (sorry for the doublepost, I feel like I may have posted this in the wrong forum in the first place, feel free to move/delete the other thread; it...

    Started by nightale‎, 07-12-2014 11:02 AM
    • Replies: 4
    • Views: 1,152
    07-12-2014, 03:25 PM Go to last post
  7. Correlating behaviors in time

    This is definitely off topic but still linked. I saw some of what you do TheEcologist. I asked a question on here about correlating behaviors in...

    Started by trinker‎, 11-03-2011 10:57 AM
    • Replies: 4
    • Views: 2,869
    11-04-2011, 12:27 PM Go to last post
  8. Angry Correlation

    I have a list of vehicle models and a number of costs associated with them. For example: Mazda 1000.50 euro Peugeot 2000.23 euro Mazda...

    Started by maltesedog‎, 12-03-2008 03:22 AM
    • Replies: 12
    • Views: 2,853
    12-04-2008, 09:32 AM Go to last post
  9. Correlation

    Hi! I'm currently working on a research..but I'm having problems with correlation. I want to correlate a test with 5 general scales to a test with...

    Started by mae‎, 03-02-2012 05:08 AM
    • Replies: 2
    • Views: 2,107
    03-02-2012, 11:52 AM Go to last post
  10. Correlation analysis Univariate

    Hello fellow, I recently joined the statistical forum, it is time to join as statistical-member to this forum since my carrier progress will be...

    Started by geonass‎, 08-09-2017 08:55 AM
    • Replies: 1
    • Views: 280
    08-10-2017, 08:40 AM Go to last post
  11. Correlation and Regression

    Hi all, I have a question about the significant p value in both correlation and regression. Is there any difference between the p values in both...

    Started by ghada8888‎, 04-09-2013 03:51 PM
    • Replies: 4
    • Views: 1,535
    04-10-2013, 02:37 AM Go to last post
  12. Correlation and significance with dependent observations

    Hi, I am trying to correlate two variables of which one variable has dependent observations as it is data derived from a social network. I am...

    Started by ttv‎, 03-16-2013 06:05 AM
    correlation, dependent observations, significance test, spearman's
    • Replies: 0
    • Views: 1,082
    03-16-2013, 06:05 AM Go to last post
  13. correlation between 3 categor variable: what to do if 2 are strongly correlated?

    Hi Guys, sorry for the thread title; may be it is rather obscure :shakehead I would appreciate to hear from you about what is the best way to...

    Started by gianmarco‎, 05-02-2013 10:00 AM
    • Replies: 2
    • Views: 2,353
    05-04-2013, 05:22 AM Go to last post
  14. Correlation between non-independent variables

    Hi, I want to conduct correlation between two variables, that have common term (difference scores). Originally there are three variables X, Y,...

    Started by random_guest‎, 09-17-2014 06:14 PM
    • Replies: 6
    • Views: 2,873
    09-24-2014, 11:15 AM Go to last post
  15. Correlation between two dependent variables on repeated measures

    Hello there! I am trying to see if there is covariation of two variables (anxiety and sleeping heart rate) over multiple days of testing the same...

    Started by Major‎, 03-10-2012 08:54 PM
    repeated measures
    • Replies: 2
    • Views: 10,112
    05-02-2012, 06:13 AM Go to last post
  16. Correlation Between Unpaired Data?

    What type of statistics compares or finds correlation of unpaired data? I'm assuming an XY scatter plot wouldn't work. I'm also assuming a t-test or...

    Started by odessa‎, 08-27-2013 09:58 AM
    correlation, ttest, unpaired data
    • Replies: 4
    • Views: 4,676
    08-27-2013, 12:15 PM Go to last post
  17. Correlation coeff vs. Logistic Regression Coeff.

    From a bunch of data points which look like: 1 1 1 1 1 1 1 1 1 1 0 1 1 0 1 1 0 0 1 0 1 1 0 0

    Started by Vatsa‎, 02-01-2013 10:19 AM
    logistic regression
    • Replies: 1
    • Views: 1,454
    02-01-2013, 11:33 AM Go to last post
  18. correlation coefficient

    Need quick help... A researcher investigated the relationship of age and ankle strength. She found the correlation coefficient to be -.85. What...

    Started by francija‎, 02-14-2012 12:51 AM
    • Replies: 5
    • Views: 3,148
    02-14-2012, 01:15 AM Go to last post
  19. Correlation coefficient for zero inflated count data

    Hi, I would like to ask what is the proper correlation coefficient to use for count data and for zero inflated count data. would Kendall tau do...

    Started by Statnoob1‎, 08-05-2014 08:22 AM
    correlation, count data, zero-inflation
    • Replies: 0
    • Views: 1,944
    08-05-2014, 08:22 AM Go to last post
  20. Correlation coefficient in two groups separately and the collapsed across groups

    Hi, I'm having trouble interpreting the results of a test of bivariate correlation. I am computing Pearson's r in a group of 400 as a whole,...

    Started by slipperyn‎, 03-03-2012 11:38 AM
    correlation
    • Replies: 2
    • Views: 2,116
    03-03-2012, 12:26 PM Go to last post
  21. Post Correlation coefficient repeated measures

    Hi Everyone, I would like to measure the correlation between two quantitative variables. These variables measure the same thing but are obtained...

    Started by AkaKiwi‎, 03-23-2014 06:30 AM
    • Replies: 5
    • Views: 2,925
    03-26-2014, 04:17 AM Go to last post
  22. correlation for likert scale and respondent profile

    good day. so we are having problems what method to use to find the relationship between our respondents' profile and our leading variables. our...

    Started by rjkoko‎, 09-21-2012 03:14 AM
    correlationm
    • Replies: 0
    • Views: 1,703
    09-21-2012, 03:14 AM Go to last post
  23. Correlation help needed!

    Hello, I am having trouble crunching some data and was wondering if someone could please walk me through it. I believe the correct test to use is...

    Started by Jessie14‎, 11-03-2010 10:52 PM
    • Replies: 1
    • Views: 2,380
    11-04-2010, 04:26 PM Go to last post
  24. Correlation in contentency tables using determinants??????

    "This paper suggests a measure of association (or correlation) between nominal data. It relies on the use of determinants. The general idea is that...

    Started by SandraM‎, 05-05-2011 09:06 AM
    • Replies: 0
    • Views: 1,678
    05-05-2011, 09:06 AM Go to last post
  25. Correlation interpretation: when to use "is related"?

    If the selling of ice cream was found correlated (0.4-0.6) to the temperature, can we conclude that ice cream selling "is related" to the...

    Started by John.Thomas‎, 03-19-2014 10:03 AM
    correlation, interpretation
    • Replies: 0
    • Views: 914
    03-19-2014, 10:03 AM Go to last post
  26. Correlation length

    Hi all, I'm working on a hydrological model. I supposed to build a mesh with correlation length in the permeability field. I know what is the...

    Started by Evyatar‎, 02-02-2017 04:14 AM
    correlation, correlation length
    • Replies: 7
    • Views: 2,936
    02-08-2017, 10:34 AM Go to last post
  27. Correlation matrix Not positive definite in PCA

    Hi, I am currently working on a project which returns a not positive matrix while conducting a PCA. As a result I don't get the sphericity test...

    Started by Elina‎, 11-01-2013 08:27 AM
    • Replies: 0
    • Views: 1,392
    11-01-2013, 08:27 AM Go to last post
  28. correlation matrix: Bonferroni or not Bonferroni is my question

    Hello all, When constructing correlation matrices, a number of people claim that one should apply the Bonferroni adjustment if the number of...

    Started by andik‎, 12-02-2015 07:47 PM
    • Replies: 4
    • Views: 1,407
    12-03-2015, 08:50 PM Go to last post
  29. correlation method for latent variable

    Hi! I have several dichtomous variable which are latent and normally distributed. When I calculate correlation with two of these variables I ought...

    Started by arkiaamu‎, 02-05-2014 03:10 AM
    • Replies: 0
    • Views: 813
    02-05-2014, 03:10 AM Go to last post
  30. Correlation of Distances

    I am trying to measure geometrical similarities of given two time-course data. Each of two time course data measures independently something changing...

    Started by Mostimportant‎, 07-02-2012 06:36 AM
    correlation, distance, dynamics
    • Replies: 0
    • Views: 1,470
    07-02-2012, 06:36 AM Go to last post
  31. Correlation of two dependent variables

    Hi all! I have a small data set which contains two tissue samples from ~20 patients. Each patient has contributed a tissue sample from left and...

    Started by arkiaamu‎, 05-09-2014 01:26 AM
    • Replies: 0
    • Views: 2,190
    05-09-2014, 01:26 AM Go to last post
  32. Correlation or Difference?

    hello everybody, i have a question about which method would be more appropriate. I have a 4 point ordinal dependent variable. I also have 3...

    Started by micdhack‎, 02-26-2011 08:03 AM
    • Replies: 2
    • Views: 5,579
    02-26-2011, 11:41 AM Go to last post
  33. Correlation Over Time

    Hello, I have data regarding the number of blood cells, and the number of a certain protein associated with blood cells, from 15 blood samples at...

    Started by yosam1023‎, 08-09-2011 10:53 AM
    correlation, time series analysis
    • Replies: 1
    • Views: 3,242
    08-09-2011, 01:57 PM Go to last post
  34. Correlation Proof

    Hi guys, wondering if you could help me with a proof that I am trying to figure out. Here it is... Corr (A, B) = 0 and Corr (B, C) = 0. This...

    Started by statsq45‎, 09-25-2010 06:24 PM
    • Replies: 7
    • Views: 6,594
    10-07-2010, 03:34 PM Go to last post
  35. Correlation significance critical values

    I've been trying to determine the critical value for a sample size of 168 but all the tables only indicate values up to 100 (most of them). Is there...

    Started by globaljaco‎, 01-15-2015 07:50 AM
    • Replies: 1
    • Views: 1,312
    01-15-2015, 08:41 AM Go to last post
  36. Correlation testing of survey results

    Hi there, hopefully this is posted in the right section. If not, I apologise. I have been helping out a local charity to compile and analyse a...

    Started by TheCageybee‎, 12-22-2013 03:05 PM
    • Replies: 0
    • Views: 940
    12-22-2013, 03:05 PM Go to last post
  37. Correlation to determine the best reference series for homogenization

    Before asking this, I read similar questions, but none of them lead to satisfying answer for my specific interest. I want to homogenize a 64 years...

    Started by noviolencia‎, 03-02-2014 02:03 AM
    • Replies: 2
    • Views: 1,799
    03-07-2014, 07:33 AM Go to last post
  38. Correlation versus Regression

    Hi, I am trying to find an impact of some factors on overall satisfaction. Could you please advice me whether correlation or regression is better?...

    Started by Slavek‎, 10-09-2009 06:48 AM
    • Replies: 1
    • Views: 2,438
    10-09-2009, 07:34 AM Go to last post
  39. Correlation vs ANOVA

    Hi, I am trying to figure out which type of statistics to use for my research project. My knowledge of stats is limited so hopefully this makes...

    Started by Bri‎, 01-23-2013 02:11 PM
    correlation analysis
    • Replies: 6
    • Views: 12,608
    01-23-2013, 04:18 PM Go to last post
  40. correlation with missing data

    I got a problem with correlating 2 signals x1,x2 (isgnal in time) with missing data. the missing data is periodic and is in both signals. my...

    Started by eyalenjoi‎, 08-17-2014 05:46 AM
    • Replies: 0
    • Views: 1,425
    08-17-2014, 05:46 AM Go to last post
  41. Correlation/Regression using Aggregrated Data

    Hi, This is something that I've been wondering about for some time now, but which I've never managed to find a formal reference for....

    Started by EH11‎, 10-30-2008 07:44 AM
    • Replies: 0
    • Views: 3,181
    10-30-2008, 07:44 AM Go to last post
  42. Smile Correlational stusy, Conformity and Intelligence

    Im doing a research correlation between Confirmity and Intelligence. Got 60 sample size. All participants where given 2 tests to fill up, Approval...

    Started by Psychonaut‎, 12-26-2011 02:36 AM
    correlational study help
    • Replies: 5
    • Views: 3,570
    12-29-2011, 07:51 PM Go to last post
  43. Correlations - Homogeneity of Variance

    Hi, Please help, I'm in the middle of a research project,under pressure, and I just can't think straight. I'm using SPSS. I have data which is...

    Started by SunnyFriday‎, 03-21-2014 07:49 AM
    • Replies: 0
    • Views: 1,713
    03-21-2014, 07:49 AM Go to last post
  44. Correlations among responses to a forced-choice scale

    I have data from participants who rate emotional content of pictures. Specifically, people see 20 pictures of abstract paintings (one at a time) and...

    Started by gbarto3‎, 03-29-2013 09:29 PM
    correlation, forced-choice scale
    • Replies: 3
    • Views: 2,148
    04-08-2013, 06:43 PM Go to last post
  45. Question Correlations between groups of Likert-type answers – choice of statistical test

    I'm looking for the optimal way to interpret some data, so any constructive advice will be appreciated. A questionnaire with 3 groups of 50...

    Started by ajvar‎, 05-31-2012 03:41 PM
    correlation, likert, test
    • Replies: 1
    • Views: 41,268
    05-31-2012, 05:02 PM Go to last post
  46. Correlations between twins - who is X and wo is Y?

    I have some data on twins (all fraternal) and I'm trying to see if there is any correlation between them on several measures (e.g., body...

    Started by andrewkent‎, 05-24-2012 02:50 PM
    correlation, twin studies, twins
    • Replies: 7
    • Views: 2,636
    05-24-2012, 04:33 PM Go to last post
  47. Costant coefficient in logit model

    Hello, I would like to make sure of my argument. Am I right when I say that a constant coefficient in logit model MUST BE close to zero ?? ...

    Started by russel2000‎, 11-21-2015 09:33 AM
    • Replies: 8
    • Views: 1,497
    11-23-2015, 11:51 AM Go to last post
  48. Red face Could anyone recommend an interactive application for mass data analysis?

    Hi, everybody I need to conduct a large amount of data analysis on database. Could anyone recommend an interactive application for data analysis?...

    Started by bestbird7788‎, 05-22-2012 02:53 AM
    analysis, database, interactive, mass data, sql
    • Replies: 13
    • Views: 3,100
    05-31-2012, 09:25 PM Go to last post
  49. Counter-intuitive results with Bold-Brunell panel data estimator (DV-INDEX)

    Hi All, I am doing Brunell-Bond panel data analysis and the results seem completely counter-intuitive. The DV is a food prices index - and so if...

    Started by SylviaS‎, 04-09-2012 01:53 PM
    • Replies: 7
    • Views: 1,948
    04-09-2012, 03:23 PM Go to last post
  50. Covariance structure in a longitudinal study

    Hi We are conducting a pharmacological trial with repeated measurements of the drug concentration in the blood over several weeks. Due to the...

    Started by MBJ‎, 01-10-2014 05:30 AM
    covariance structure, repeated measurements
    • Replies: 0
    • Views: 2,026
    01-10-2014, 05:30 AM Go to last post
  51. Covariate Estimation & Unbiased Estimation

    I work with a group that utilizes the Mahalanobis Distance to detect the health of a system, mostly electronics. Within this research, we are looking...

    Started by 3waytie4last‎, 09-10-2008 12:41 PM
    • Replies: 0
    • Views: 3,936
    09-10-2008, 12:41 PM Go to last post
  52. Cox Proportional Hazard method survival analysis

    Cox Proportional Hazard method survival analysis is the same as Cox regression analysis?

    Started by eunkum‎, 03-15-2013 03:43 PM
    • Replies: 1
    • Views: 2,472
    03-20-2013, 02:22 PM Go to last post
  53. Red face Cramer's V

    Hi all, Just have a question about Cramer's V. I'm doing some analysis on education levels of partners; male partners vs. female partners. In the...

    Started by AvMac‎, 05-20-2015 08:58 PM
    cramer's v
    • Replies: 2
    • Views: 1,520
    05-21-2015, 09:05 PM Go to last post
  54. Cramer's V effect size based on df

    I saw a presentation about chi-square testing and correlations. Specifically calculating effect size for Cramer's V results. The puzzling thing was...

    Started by micdhack‎, 10-11-2011 05:52 AM
    • Replies: 10
    • Views: 26,637
    10-15-2011, 12:41 PM Go to last post
  55. cramers v and level of significance interpretation

    Hey guys :) I have been searching for hours in books, forums and on the internet but I can't find answers to my questions, so you are my last...

    Started by Anschi7591‎, 08-24-2013 11:00 AM
    • Replies: 1
    • Views: 5,472
    08-25-2013, 01:12 AM Go to last post
  56. Create scale (or index) using items that are measured on with different scales

    Hello, I would like to make a scale of several items that are theoretically related, have a >.8 cronbach's alpha, but were measured on different...

    Started by jesse‎, 08-26-2012 07:16 PM
    scale development
    • Replies: 0
    • Views: 1,255
    08-26-2012, 07:16 PM Go to last post
  57. Exclamation create similar selection groups out of 4 cohorts - is it possible?

    I am currently doing a study where I need to select a number of 50 members from 4 cohorts of 100 members each. 400 members have been placed in 4...

    Started by statisticaly‎, 04-10-2013 06:25 AM
    • Replies: 0
    • Views: 1,123
    04-10-2013, 06:25 AM Go to last post
  58. creating a variable

    MY hypothesis is the following: The demographic variable of age has a significant impact on the relationship between organizational trust and the...

    Started by eunkum‎, 03-08-2013 02:56 PM
    • Replies: 1
    • Views: 1,505
    03-09-2013, 02:48 PM Go to last post
  59. Criterion Validity

    Hi all, I am comparing scores from two tests (new test vs gold standard). The new test is scored as 1=initial; -2=elementary low;...

    Started by jimmypage‎, 08-19-2012 12:02 PM
    • Replies: 1
    • Views: 2,313
    08-19-2012, 05:44 PM Go to last post
  60. Critical value for lare number of treatments

    I am trying to perform a Post-ANOVA Tukey test to determine the differences between treatments. I have over 50 treatments (k>50) for some of my...

    Started by Lipanook‎, 05-10-2013 06:37 AM
    anova, k value, q value, table, tukey
    • Replies: 0
    • Views: 1,080
    05-10-2013, 06:37 AM Go to last post

+ Post New Thread
Page 11 of 54 FirstFirst 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ... LastLast

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 15 replies or 300 views
Hot thread with unread posts
More than 15 replies or 300 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts






Advertise on Talk Stats