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Forum: Psychology Statistics

Psychological statistics, quantitative psychology. Statistics in social sciences. Experimental design, data analysis.

  1. Arrow Sticky Thread Sticky: Please Read This Before Posting

    Please provide us with some basic information before we can give useful advice: 1. purpose of the study / research question / hypotheses, if...

    Started by quark‎, 11-09-2005 11:21 PM
    • Replies: 0
    • Views: 22,524
    11-09-2005, 11:21 PM Go to last post
  1. Unhappy Regarding Bayesian Inference

    Hi, This is a problem I am currently facing in my research... I have a dataset collected over time for time=0 to T I need to estimate some...

    Started by abcd_1641‎, 01-27-2006 09:06 PM
    • Replies: 2
    • Views: 2,256
    01-29-2006, 11:23 PM Go to last post
  2. Rank order data analysis

    I need the appropiate statistic tool to solve the following case: I have done several experiments to 15 subjects. Each subject rank 6 samples...

    Started by verde‎, 01-26-2006 10:35 AM
    • Replies: 3
    • Views: 24,693
    01-26-2006, 01:54 PM Go to last post
  3. Question Determining Sample Size in Natural Populations

    I was wondering how I would determine a sample size for the given scenerio. Please let me know if more information is needed. There is a natural...

    Started by Clairemarie63‎, 01-24-2006 11:54 AM
    • Replies: 5
    • Views: 2,679
    01-25-2006, 10:32 AM Go to last post
  4. Which analysis for categorical repeated design?

    Hello there, I am looking for an appropriate analysis to analyze polytomous categorical data from a repeated mixed design. More specifically:...

    Started by Marc_J_Buehner‎, 11-08-2005 02:14 AM
    • Replies: 5
    • Views: 3,414
    01-23-2006, 02:33 PM Go to last post
  5. Likert Scales

    I am currently doing my research for my dissertation on the under-representation of women in the construction industry. My aim is to show that...

    Started by jdorward‎, 01-21-2006 09:46 AM
    • Replies: 7
    • Views: 4,127
    01-22-2006, 04:57 AM Go to last post
  6. HELP - Greenhouse-Geisser (G-G) correction

    I am attempting to evaluate the data given in a research article. The article is evaluating two treatment groups, and in attempting to show that one...

    Started by kelkat‎, 01-21-2006 01:52 AM
    • Replies: 1
    • Views: 3,686
    01-21-2006, 07:40 AM Go to last post
  7. Three Great Basic Reference Textbooks

    Here are Amazon links to each of the titles. I personally use each of these as desk references: Applied Statistics for the Behavioral Sciences -...

    Started by JohnM‎, 01-20-2006 01:19 AM
    • Replies: 0
    • Views: 1,834
    01-20-2006, 01:19 AM Go to last post
  8. Analysing language test data

    Could somebody help me with interpreting the results of the following survey? I have 25 main respondents in the survey. They are non-native...

    Started by flake‎, 01-17-2006 01:10 AM
    • Replies: 2
    • Views: 2,371
    01-17-2006, 11:27 AM Go to last post
  9. Hypothesis testing for population proportions

    I posted these question a couple of night ago and zi did not get a respond. AS CEO my interested in the relatonsipof funds expended in research and...

    Started by Rojo‎, 01-14-2006 09:23 PM
    • Replies: 1
    • Views: 2,510
    01-14-2006, 10:52 PM Go to last post
  10. Statistical analysis exercises

    Hi all! I am in big trouble. Is there anyone here knowing how to use the statistical analysis programme R? If so, please give me your helping ...

    Started by flake‎, 01-14-2006 02:13 AM
    • Replies: 0
    • Views: 2,210
    01-14-2006, 02:13 AM Go to last post
  11. Appropriate Statistics for Plant Study?

    This post is lengthy, but I hope someone can take the time to look it over and offer some suggestions. Thanks in advance. A colleague has asked...

    Started by jcoleman51‎, 01-13-2006 07:57 AM
    • Replies: 1
    • Views: 2,078
    01-13-2006, 08:08 AM Go to last post
  12. Probability Question

    can anyone help me with this question. a company manufactures computer chips. the machine that makes these disks produces 5% defective chips. the...

    Started by roby‎, 01-13-2006 04:59 AM
    • Replies: 1
    • Views: 1,905
    01-13-2006, 07:54 AM Go to last post
  13. advice on statistics

    I'm a doctoral research student in England, and have conducted both a pilot study and a main study. I've done some statistical analysis already, and...

    Started by jodee_w‎, 01-13-2006 06:10 AM
    • Replies: 2
    • Views: 2,977
    01-13-2006, 07:48 AM Go to last post
  14. KW Test applicable?

    Background: I am new to Statistical Analysis, and I am analysising this data based on a conversation with a old associate over the phone. Am I...

    Started by jscholen‎, 01-04-2006 08:16 PM
    • Replies: 9
    • Views: 3,312
    01-10-2006, 09:03 AM Go to last post
  15. Question Is this pseudo-replication?

    Good morning, I am trying to analyze data from a study that was conducted in 1999-2000. Some of the issues are that 1. I wasn't even working...

    Started by birdlady77‎, 01-09-2006 09:05 AM
    • Replies: 1
    • Views: 4,049
    01-09-2006, 09:28 AM Go to last post
  16. SPSS Project

    Hi there, I was hoping someone could help me. I'm doing a project on promotions at work. I have three variables, scores on a job performance...

    Started by occpsych‎, 01-07-2006 09:05 AM
    • Replies: 2
    • Views: 3,088
    01-08-2006, 07:08 AM Go to last post
  17. Setting decision threshold

    Hi, I am helping my children's school with some data analysis of student exit surveys; the results are provided to the governing council for...

    Started by Stormy‎, 01-02-2006 06:39 AM
    • Replies: 2
    • Views: 2,431
    01-03-2006, 12:29 AM Go to last post
  18. Is this problem appropriate to statistical methodology?

    Hi. First, thanks to Jin for enabling my account and allowing me to post! My question is kind of complex, so I will attempt to reduce it to the...

    Started by JimB‎, 12-29-2005 10:22 AM
    • Replies: 4
    • Views: 2,279
    12-30-2005, 09:55 AM Go to last post
  19. Experimental Design

    Hello, I am not sure whether my experimental design right. Can you suggest me something? and also how many treatments do I have? * all the...

    Started by AlexKom‎, 12-26-2005 06:06 PM
    • Replies: 5
    • Views: 2,421
    12-28-2005, 06:41 PM Go to last post
  20. meta-analysis

    Hi I am supposed to conduct a meta-analysis of 30+ studies regarding specific training programs. The majority of studies use different measures and...

    Started by rach‎, 12-19-2005 11:22 PM
    • Replies: 3
    • Views: 2,560
    12-20-2005, 08:30 PM Go to last post
  21. Unhappy need help with power analysis

    hi boistatisticians I am a medical statistical dummy and a journal editor threats me by asking for a power analysis....can someone help me?

    Started by mierdldoc‎, 12-18-2005 01:13 AM
    • Replies: 1
    • Views: 2,223
    12-18-2005, 07:02 AM Go to last post
  22. need help

    i am currrently enrolled in a masters progam and am completing a reserarch proposal. very weak in stats. I want to measure uncertatinty over...

    Started by rodp‎, 12-11-2005 03:05 AM
    • Replies: 4
    • Views: 2,042
    12-12-2005, 08:44 AM Go to last post
  23. Do I even need a statistical method??

    After rethinking my problem with finding outliers in some GPS/SONAR data i started to wonder if i even need to do a statistical test for outliers at...

    Started by jerryb‎, 12-01-2005 04:40 PM
    • Replies: 7
    • Views: 2,648
    12-08-2005, 11:24 AM Go to last post
  24. Comparison at the 90th percentile

    I have been asked to create a report "Comparing my company with other companies with specific measures." I have a list of the specific measures, I...

    Started by Erenagh‎, 12-05-2005 07:32 PM
    • Replies: 2
    • Views: 3,064
    12-05-2005, 08:29 PM Go to last post
  25. Exclamation ??multi-level/hierarchical or cluster analysis??

    Hi! I hope there's somebody who can help me with my thesis analysis (hierarchical logistic regression). i know the basic concepts and am actually...

    Started by barbi‎, 11-02-2005 08:58 PM
    • Replies: 4
    • Views: 3,605
    12-05-2005, 02:48 AM Go to last post
  26. Question need a method for detecting outliers

    Hi, i just joined this group and hope to find some help. i'll begin with a breif introduction of myself then my question: i am a professor of...

    Started by jerryb‎, 11-24-2005 09:07 PM
    • Replies: 6
    • Views: 3,021
    12-01-2005, 04:31 PM Go to last post
  27. statistics help

    hi guys im currently doing a phd in immunology but kinda helpless and hopless when it comes to stats. is there anyone who can chat to me about which...

    Started by hana-‎, 11-30-2005 04:36 AM
    • Replies: 12
    • Views: 2,840
    11-30-2005, 04:17 PM Go to last post
  28. Help with path analysis

    Hi everyone, I am a clinical psychology student trying to use confirmatory path analysis to determine whether a model using gender (categorical),...

    Started by heddymarie‎, 11-22-2005 04:56 PM
    • Replies: 2
    • Views: 2,472
    11-28-2005, 10:10 AM Go to last post
  29. Question duplex algorithm for data splitting

    Hello, I have problem understand the last step of duplex algorithm. After I have found my othonormal maxtrix, I have found a pair of point that...

    Started by sana307‎, 11-20-2005 03:02 PM
    • Replies: 1
    • Views: 3,555
    11-20-2005, 08:50 PM Go to last post
  30. MSC Project

    Iam doing a project looking at two ways to scan a knee and comparing them against surgery they had prior to the scans however it is only in patients...

    Started by jill‎, 09-10-2005 09:49 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 5,201
    11-18-2005, 06:37 PM Go to last post
  31. Comparison of Multiple Groups of Data...

    Man, what a killer forum this is. Thanks to those who are providing it... I'm one of those guys who needs brushing up on the fundamentals, and then...

    Started by bubbisthedog‎, 11-17-2005 09:24 AM
    • Replies: 6
    • Views: 2,600
    11-17-2005, 10:39 AM Go to last post
  32. Benchmark Determination...

    Hello, folks, first post. Suppose I have a set of 1000 elements (customers), each with a corresponding value (net profit gained from that...

    Started by bubbisthedog‎, 11-15-2005 03:13 PM
    • Replies: 2
    • Views: 1,944
    11-15-2005, 04:08 PM Go to last post
  33. Data splitting

    Hello all, I am trying to split data into a training data set for regression and a prediction data set to test my regression. I have 130 samples,...

    Started by UofA‎, 11-11-2005 10:20 PM
    • Replies: 0
    • Views: 2,721
    11-11-2005, 10:20 PM Go to last post
  34. Mortality risk model creation

    Hi there, I have a few questions to throw out there. A bit of back ground. I am starting to build a multiple regression model for looking at the...

    Started by lhcpr‎, 11-10-2005 04:59 PM
    • Replies: 2
    • Views: 2,361
    11-10-2005, 10:03 PM Go to last post
  35. Question MANOVA of variances?

    I'm trying to figure out how to determine the effect of three (2 binary, 1 categorical) independent variables on the variability of a number of...

    Started by stats_novice‎, 11-10-2005 11:34 AM
    • Replies: 1
    • Views: 5,841
    11-10-2005, 11:47 AM Go to last post
  36. Principal component analysis

    Hi I am analysing ecological data for relationships using PCA. Data have been grouped according to signs (-/+) of PC1, 2 and 3 that explained 85% of...

    Started by monkeyman‎, 11-09-2005 01:25 PM
    • Replies: 3
    • Views: 6,648
    11-09-2005, 06:55 PM Go to last post
  37. help with Likert analysis

    I am using 5 point Likert scale questions in questionnaires to measure people's attitudes towards new health technology. Can anyone help with the...

    Started by mcgeemr‎, 11-03-2005 07:06 AM
    • Replies: 3
    • Views: 6,699
    11-03-2005, 09:08 AM Go to last post
  38. Sample size from big industrial runs and batchess

    Dear Folks- I have no knowledge of what is an adequate number of samples to take for an analysis from a total of 20,000 bottles of 1 quart from two...

    Started by donald reinhardt‎, 10-25-2005 01:59 PM
    • Replies: 1
    • Views: 2,578
    10-25-2005, 02:20 PM Go to last post
  39. Post Interpreting means from likert scale data

    Hello, I work for a government department in Australia. The department runs an annual opinion survey with 5 point likert scale response items....

    Started by Adrian Seabrook‎, 10-23-2005 08:13 PM
    • Replies: 4
    • Views: 62,069
    10-24-2005, 08:31 AM Go to last post
  40. Question Very Confused

    Hi, I'm new to this forum, but I really need some help here. :confused: I worked all summer on an experiment and I'm not sure what type of...

    Started by Quisty‎, 10-17-2005 06:02 PM
    • Replies: 3
    • Views: 2,276
    10-20-2005, 11:04 AM Go to last post
  41. Figureing out N's

    Hi I'm measuring the physiological distance that certain axons retract after injury across different injury interval groups. I have approx 5...

    Started by gseif‎, 09-16-2005 02:35 PM
    • Replies: 3
    • Views: 2,374
    09-16-2005, 05:26 PM Go to last post
  42. Biology/Ecology Statistics

    I have a simple question. I have to statistically analyse data (if its at all possible) comparing two sets of population data on two separate sites...

    Started by tbeatty‎, 08-27-2005 09:52 AM
    • Replies: 1
    • Views: 4,618
    08-27-2005, 10:06 AM Go to last post

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