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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, 11-10-2005 12:21 AM
    • Replies: 0
    • Views: 27,530
    11-10-2005, 12:21 AM Go to last post
  1. statistical symbols in microsoft word

    I've spent like 5 hours trying to figure out how to insert a bar (called overstrike or overline) over a word ... like the bar that goes over x for...

    Started by lissiemait‎, 06-07-2014 11:17 PM
    microsoft word, overstrike, statistics, symbols, word
    • Replies: 5
    • Views: 3,025
    06-09-2014, 11:33 PM Go to last post
  2. How to analyse..?

    Hi, I have a problem to choose a method for analysing data from my experiment. I have one within-subjects (all four stimuli presented to every...

    Started by registerStat‎, 06-06-2014 07:03 PM
    • Replies: 0
    • Views: 929
    06-06-2014, 07:03 PM Go to last post
  3. Cool Preacher&Hayes Process macro

    Hello friends! We are interested in the relationship of x on y, mediated by m. All variables are dichotomous except for x, which is continuous....

    Started by Psychstat‎, 06-06-2014 01:01 PM
    • Replies: 1
    • Views: 2,137
    06-06-2014, 04:10 PM Go to last post
  4. Could really use some advice for my thesis!

    So I'm almost done with my thesis but I'm struggling with my last hypothesis. Some background information on my subject: I'm trying to find out what...

    Started by rigest‎, 06-06-2014 04:32 AM
    • Replies: 3
    • Views: 1,281
    06-06-2014, 06:26 AM Go to last post
  5. Nonparametric/Ranking Data Help!!

    Hi all, I am a PHD student attempting to come to grips with an analysis of some recent data. I have a repeated measures design. 220 students were...

    Started by kip_cheers‎, 06-03-2014 08:22 PM
    friedman test, nonparametric, rank, repeated measures
    • Replies: 0
    • Views: 753
    06-03-2014, 08:22 PM Go to last post
  6. Unhappy Sample size calculation for multiple regression

    Hi all! I am struggling with sample size calculations at the minute. I have looked everywhere but all I get is formulas. I have downloaded MedCalc...

    Started by Christie‎, 06-03-2014 04:58 PM
    correlation, multiple regression, power statistics, sample size calculation
    • Replies: 0
    • Views: 1,377
    06-03-2014, 04:58 PM Go to last post
  7. Autism behaviour - how to analyse data

    I'd like help how to use data on the behaviour of an autistic individual. In my work I'm taking care of an adult male with autism. He's in his...

    Started by therigidrook‎, 06-01-2014 01:51 PM
    • Replies: 2
    • Views: 1,037
    06-03-2014, 03:46 PM Go to last post
  8. Question: What type of experimental design do I have here?

    I feel a bit unsure and maybe you can help me. I've got the data of a big firm, where there is a population of 1400 administrative personnel...

    Started by womanfromthesea‎, 05-20-2014 03:49 PM
    • Replies: 5
    • Views: 1,302
    06-03-2014, 11:15 AM Go to last post
  9. How to analyze parents' talk when codes are not normal in a mixed design?

    This is a but tricky to explain, so I will do my best. I am trying to analyze coded talk by parents for three different categories of objects. I...

    Started by dsiegel06‎, 05-30-2014 05:40 PM
    mixed anova, non-parametric, parent talk
    • Replies: 1
    • Views: 930
    06-03-2014, 03:06 AM Go to last post
  10. HELP with experimental analysis (fear conditioning)

    I am running an olfactory fear conditioning procedure in which 2 odors (odor A/ odor B) are either paired with a footshock (CS+) or absence of...

    Started by jzunder‎, 05-29-2014 05:35 PM
    anova, mixed between anova, repeated measure anova, spss
    • Replies: 1
    • Views: 831
    06-02-2014, 07:02 AM Go to last post
  11. Not sure if i chose the correct statistical test to analyze data

    I'm trying to help a friend out with the statistics parts of her bachelors paper. Right now she is still the the planing stages and has not gathered...

    Started by hugstari‎, 05-30-2014 07:06 AM
    chi sq test, questionnaire, statistical design
    • Replies: 0
    • Views: 551
    05-30-2014, 07:06 AM Go to last post
  12. Condensed data vs. raw data. What analyses would be appropriate?

    Hello all, I am new to this forum and would greatly appreciate your help. I have two datasets: one dataset is from 1980 and only “processed”...

    Started by Daida‎, 05-29-2014 01:13 PM
    • Replies: 1
    • Views: 908
    05-29-2014, 01:48 PM Go to last post
  13. HELP understanding results and writing discusion

    can somebody help me !! I am going crazy haha The third hypothesis predicted that people in a happy mood were more likely to process information...

    Started by jpark‎, 05-29-2014 12:57 AM
    • Replies: 0
    • Views: 697
    05-29-2014, 12:57 AM Go to last post
  14. Cross-lagged panel size: sample size of 48

    I have performed a cross-lagged correlational study with 2 variables and 2 waves. My sample size is 48 subjects. Is it possible to perform it with...

    Started by Chr‎, 05-28-2014 12:34 AM
    correlation, cross-lagged, sample size
    • Replies: 0
    • Views: 907
    05-28-2014, 12:34 AM Go to last post
  15. Weighted Kappas...please help!

    Hello! I've looked all over regarding how to do this but am still coming up short. Please help! I have 16 data points. I have provided the weights!!...

    Started by rolliefngr7‎, 05-26-2014 05:00 PM
    cohen's kappa, statistical analysis, statistical computing, statistics help, weighted kappa
    • Replies: 0
    • Views: 673
    05-26-2014, 05:00 PM Go to last post
  16. What correlations to use for ANCOVA assumptions in a 2-group study?

    Hi all, I have a question regarding ANCOVA analyses. For my study, I am looking at between group differences on a memory measure that is made...

    Started by can_dodge_a_wrench‎, 05-26-2014 04:52 PM
    • Replies: 0
    • Views: 660
    05-26-2014, 04:52 PM Go to last post
  17. Assessing change using McNemar's test

    I have Pre and post-intervention test scores of a number of skills rated from 0-3 (0 = Poor, 1 = Fair, 2 = Average, 3 = Good) for 5 participants. I...

    Started by rsm‎, 05-24-2014 08:31 AM
    chi-square, mcnemar test, pre-post
    • Replies: 4
    • Views: 964
    05-24-2014, 04:41 PM Go to last post
  18. Inputting data from my questionnaires for my second year project!

    Hello there, I am really struggling with my second year project as I am clueless when it comes to SPSS. So now that i've collected all my...

    Started by Aggie93‎, 05-24-2014 01:19 PM
    data input
    • Replies: 1
    • Views: 816
    05-24-2014, 01:37 PM Go to last post
  19. Is it possible to correlate two latent variables in AMOSwhere one subsumes the other?

    Hi all, I suspect that you will think that this is a dumb question, but please bear with me: I am trying to correlate two latent variables using...

    Started by myautumn28‎, 05-21-2014 08:31 PM
    • Replies: 0
    • Views: 787
    05-21-2014, 08:31 PM Go to last post
  20. Significance changes when standardizing

    Hello guys, I ran some SEM analysis (with MPlus) which gives me some puzzling results: for some paths the significance level is highly different...

    Started by szidel‎, 05-19-2014 12:08 PM
    • Replies: 2
    • Views: 1,221
    05-19-2014, 01:53 PM Go to last post
  21. Modification Indices

    I am struggling with how to interpret some of the modification indices in AMOS SEM output and would appreciate any feedback you can offer! I have...

    Started by buntington‎, 05-17-2014 09:55 PM
    • Replies: 3
    • Views: 10,172
    05-18-2014, 04:09 PM Go to last post
  22. "contextual effect" vs. "compositional effect" in multilevel models

    Chatbox convo follows: 05/16 16:13 Jake: lazar / spunky: when people speak of "contextual effects" in the multilevel / ed psych literature, are...

    Started by Jake‎, 05-16-2014 05:43 PM
    • Replies: 2
    • Views: 6,425
    05-16-2014, 06:10 PM Go to last post
  23. Use factor weightings derived from previous work on new data?

    Hello all, I have tested people on a set of 12 cognitive tests that have been used in previous research (by other people, not me). In the previous...

    Started by jess13‎, 05-15-2014 10:55 AM
    • Replies: 6
    • Views: 1,114
    05-16-2014, 03:59 PM Go to last post
  24. Trouble Transforming Data to Normality

    Hi All, I am trying to transform a variable to normality, but it does not seem to take! Below is the distribution: Clearly there is a...

    Started by herwitz‎, 05-15-2014 11:47 AM
    2 Pages
    1 2
    • Replies: 18
    • Views: 2,781
    05-16-2014, 03:30 AM Go to last post
  25. Pretest - posttest analysis question

    I am assessing the learning outcomes for a psychology course using a 10-question multiple choice pretest and, later, the same 10 questions as a...

    Started by Sherrington‎, 05-15-2014 12:28 AM
    • Replies: 4
    • Views: 1,119
    05-15-2014, 07:36 PM Go to last post
  26. Repeated measures - correlation

    Hi, I've conducted a study in which my participants undergo 4 different manipulations (within-subjects): a negative mood, a positive mood, food...

    Started by Pebbles84‎, 05-09-2014 03:20 AM
    • Replies: 1
    • Views: 948
    05-14-2014, 09:00 AM Go to last post
  27. Cluster Analysis, Discriminant Analysis and Multinomial Logistic Regression - Help!

    Hi Everyone, I am having some serious problems with my analyses and was hoping someone might be able to help me out! I have a sample of 95...

    Started by mlb‎, 05-14-2014 08:35 AM
    cluster analysis, discriminant analysis, regression
    • Replies: 1
    • Views: 1,492
    05-14-2014, 08:58 AM Go to last post
  28. Question Within-subjects Error Bars and Normalization?

    Hello, I need to calculate within-subjects error bars to create a graph for my data but I'm having a hard time wrapping my head around how to do...

    Started by kw1130‎, 05-13-2014 01:34 PM
    • Replies: 0
    • Views: 2,679
    05-13-2014, 01:34 PM Go to last post
  29. ANOVA planned contrasts

    Dear TalkStats community, Previously a website (http://www4.uwsp.edu/psych/cw/statmanual/plancomp.html) was recommended to me on ANOVA and planned...

    Started by quert‎, 05-12-2014 10:57 AM
    anova, planned contrast
    • Replies: 0
    • Views: 937
    05-12-2014, 10:57 AM Go to last post
  30. Alternatives for logistic regression?

    Hey everyone! I need some help because I am not really happy with the data analysis for my thesis. I am investigating the prognostic power of...

    Started by Matte‎, 05-11-2014 09:23 AM
    chi-square test, logistic regression, prediction
    • Replies: 0
    • Views: 748
    05-11-2014, 09:23 AM Go to last post
  31. Resolving recoding issues for variables across time and space for a larger dataset

    For the paper I am working on I am claiming that as protester 'powerlessness' increases so does the likelihood of the protester selecting a...

    Started by ndo03001‎, 05-08-2014 09:58 PM
    • Replies: 0
    • Views: 703
    05-08-2014, 09:58 PM Go to last post
  32. Mediation/Moderation, entrepreneurship, health and work satisfaction

    Hi people! I'm currently working on my thesis in organizational psychology, and I could really use some help in the SPSS analysis. My thesis is...

    Started by Scotty‎, 05-02-2014 08:50 AM
    • Replies: 4
    • Views: 1,162
    05-07-2014, 06:38 AM Go to last post
  33. Analyzing Group Differences -ANOVA with a non-continuous DV?

    Hello All, I want to analyze group differences among 4 different levels of an IV with one DV. The issue is, when I created the survey the item I...

    Started by ColdPillow‎, 04-30-2014 09:32 AM
    • Replies: 3
    • Views: 1,235
    05-06-2014, 08:16 AM Go to last post
  34. Case Studies of Hypothesis Testing

    Can anyone help me out here? I am totally lost! You are running a series of statistical tests in SPSS using the “standard” criterion for rejecting...

    Started by amhcmh‎, 05-03-2014 02:51 PM
    • Replies: 3
    • Views: 2,485
    05-05-2014, 04:45 AM Go to last post
  35. Cross-Level Moderation

    Hi everyone, for my master thesis I have to carry out an analysis where both the IV and DV are on the team level while the hypothesized moderator...

    Started by LetsTalkStats‎, 05-05-2014 03:40 AM
    cross-level moderation, lower level moderator
    • Replies: 0
    • Views: 995
    05-05-2014, 03:40 AM Go to last post
  36. Counterbalancing Booboo

    Hello, Being a novice researcher, I completely neglected to do a very basic procedure for a brief measure which I created: counterbalancing its...

    Started by herwitz‎, 05-01-2014 06:19 PM
    • Replies: 3
    • Views: 1,019
    05-04-2014, 07:44 PM Go to last post
  37. Question More help please! I'm almost there!

    Question 10 You are running a series of statistical tests in SPSS using the “standard” criterion for rejecting a null hypothesis. You obtain the...

    Started by amhcmh‎, 05-03-2014 07:41 PM
    • Replies: 2
    • Views: 4,445
    05-03-2014, 09:24 PM Go to last post
  38. Help with understanding CFA...

    I hope someone can give me some pointers here... Or just point out to my muddled mind the porobably obvious things I am missing! I am running an...

    Started by Vicugna‎, 05-01-2014 06:01 PM
    amos, cfa, questionnaire, sem
    • Replies: 1
    • Views: 748
    05-01-2014, 06:31 PM Go to last post
  39. Extended moderated mediation [Path analysis]

    Hello all, I'm analyzing a data set collected for a psychology study, and have a question about a path analysis (i.e., structural equation...

    Started by kkim‎, 05-01-2014 11:31 AM
    • Replies: 0
    • Views: 1,071
    05-01-2014, 11:31 AM Go to last post
  40. ANOVA, the correct choice?

    Hello. I am new to statistics but have (in the last weeks) been working through an online course to try to teach myself the basics. I am doing a...

    Started by Tig‎, 04-29-2014 10:28 AM
    • Replies: 7
    • Views: 1,033
    05-01-2014, 10:29 AM Go to last post
  41. Help with confidence interval and interpreting data!?

    Someone please please help me make sense of these stats! I really need help with interpreting outcome of studies! How do i calculate CIs (no need to...

    Started by OscarDaGrouch‎, 04-29-2014 03:58 PM
    confidence intervals, odds ratio., statistics
    • Replies: 1
    • Views: 699
    04-30-2014, 03:32 AM Go to last post
  42. Red face Help with non normality distribution. Transformations didn't work. Help!

    Hi, new to this forum. I'm writing up my MsC in psychology and I've got problems with my data. The study involved administering questionnaires to...

    Started by martinaX‎, 04-29-2014 04:31 AM
    data analysis, non normal, non normal distribution, psychology
    • Replies: 7
    • Views: 1,087
    04-29-2014, 02:23 PM Go to last post
  43. Single Subject Design

    My supervisor has asked about single subject designs in educational settings. I'd never heard of them and wanted to get people's thoughts...

    Started by trinker‎, 04-29-2014 10:19 AM
    single subject design
    • Replies: 3
    • Views: 775
    04-29-2014, 01:01 PM Go to last post
  44. Comparing Cronbach's alpha intraclass correlations with varying rater permutations

    I've done a study for my PhD comparing different methods/conditions that might affect inter-rater agreement when rating the creativity of other...

    Started by gurgaveed‎, 04-29-2014 10:49 AM
    cronbach's alpha, inter-rater reliability, intraclass correlation
    • Replies: 0
    • Views: 1,132
    04-29-2014, 10:49 AM Go to last post
  45. Mixed model, repeated measures, manova, nested? nominal

    Hi. I am not sure how to approach the statistical analysis of the following study. Any insights would be greatly appreciated. Thanks! So, I...

    Started by Joan.m‎, 04-29-2014 10:41 AM
    mixed model, nominal variable, repeated measures, spss
    • Replies: 0
    • Views: 724
    04-29-2014, 10:41 AM Go to last post
  46. Comparing mother child responses to the same questionnaire- Kendalll Tau Correlation?

    Hi all, hope you can help me out here. I'm looking at perceptions of risk to the school journey on a simple Likert scale questionnaire, so ordinal...

    Started by fionacampbell22‎, 04-29-2014 07:27 AM
    kendall tau
    • Replies: 0
    • Views: 683
    04-29-2014, 07:27 AM Go to last post
  47. Talking Calculating and Comparing the Rate of Change Across Different Data Sets

    Hi all, I'm currently trying to analyze some behaviour data and I need some advice on how to do it properly. The experimental setup is like this:...

    Started by glowfish‎, 04-29-2014 05:16 AM
    • Replies: 0
    • Views: 616
    04-29-2014, 05:16 AM Go to last post
  48. How do you work out a sample size for a factor analysis that has 2 variables

    How do you work out a sample size for a factor analysis that has 2 variables?

    Started by jj4000‎, 04-28-2014 11:47 PM
    • Replies: 0
    • Views: 709
    04-28-2014, 11:47 PM Go to last post
  49. Correlation Hypotheses (Pearsons) - Is a Null Hypothesis necessary?!

    Hi :) I'm quite confused on whether it is possible predicting 3 positive correlations? Or is it necessary that there should be a null? For...

    Started by Sarsoorah!‎, 04-26-2014 01:24 AM
    correlation, hypotheses, hypothesis testing, pearson r, psychology experiment
    • Replies: 1
    • Views: 799
    04-26-2014, 02:22 AM Go to last post
  50. Behavioural Data Blues: Repeated measures, trichotomous proportion data

    Hello, I am a biologist trying to sort through some behavioural data. I am not sure how to proceed with my repeated measures proportional data. I...

    Started by Fish1‎, 04-23-2014 08:50 PM
    • Replies: 5
    • Views: 1,044
    04-25-2014, 12:25 PM Go to last post
  51. Multiple Regression Analysis including Control Variables

    Hi Everyone, Currently I'm working on my masterthesis for which I created a model which was approved by the University. I decided that I want to...

    Started by bepaaldiemand‎, 04-09-2014 04:40 AM
    control variables, multiple regression, psychology statistics
    • Replies: 9
    • Views: 1,315
    04-25-2014, 04:56 AM Go to last post
  52. Power of a study using a 2 sample z-test?

    Solved using PASS.

    Started by rsoul‎, 04-25-2014 02:18 AM
    • Replies: 0
    • Views: 657
    04-25-2014, 02:18 AM Go to last post
  53. Simple Modell explained? (with picture)

    Hi, I am writing my BA about Sportspsychology. This model is important fpr my thesis, but I can't "read" it proper. Model:...

    Started by MrPeer‎, 04-24-2014 03:41 AM
    • Replies: 2
    • Views: 1,278
    04-24-2014, 09:26 PM Go to last post
  54. Question Reporting Non-Parametric Data: Median or Mean (or both)?

    At the most simple level, my question is which descriptive statistics are the most kosher for reporting when using nonparametric tests like...

    Started by metageek‎, 04-23-2014 07:14 PM
    • Replies: 3
    • Views: 11,700
    04-24-2014, 06:46 PM Go to last post
  55. Question SEM using survey data and maximum likelihood estimation - fit statistics?

    I have estimated an SEM model in STATA based on survey data. Once I identify the data as survey by including sample weight and bootstrap weight...

    Started by amsavage‎, 04-24-2014 01:28 PM
    fit statistics, sample weighting, sem, stata, survey data
    • Replies: 2
    • Views: 1,154
    04-24-2014, 04:25 PM Go to last post
  56. Testing discriminant validity in a satisfaction questionnaire

    Hello, I have a Likert scale questionnaire rating patient satisfaction with care (1 = strongly agree, 2= agree, 3 = disagree, 4 = strongly...

    Started by catkin‎, 04-17-2014 05:45 AM
    • Replies: 1
    • Views: 784
    04-24-2014, 12:43 PM Go to last post
  57. Smile repeated measures, 3 conditions and multiple DV's in each of the conditions

    Our experiment design is kind of complex: 35 participants, stimuli were approaching cones that disappeared at different distances (conditions:...

    Started by Kyana‎, 04-24-2014 12:11 PM
    multiple conditions, multiplte dv's, repeated measures
    • Replies: 0
    • Views: 805
    04-24-2014, 12:11 PM Go to last post
  58. Help with post hoc testing

    I am writing a results section and I am new to it. I think I may have the first half of the results okay but I am not sure how to form the post hoc...

    Started by stat_student1125‎, 04-23-2014 09:58 AM
    • Replies: 0
    • Views: 856
    04-23-2014, 09:58 AM Go to last post
  59. Comparing non-independent variables

    Dear TalkStats community, I would like to ask for your help in a problem that seemed very easy at first sight. Now, I’m not sure it is as easy as...

    Started by quert‎, 04-14-2014 08:07 AM
    • Replies: 3
    • Views: 1,438
    04-18-2014, 02:45 AM Go to last post
  60. Help with mixed between within subjects ANOVA

    I've recently performed a mixed between within subjects ANOVA. I have the results for the two main effects as well as the interaction effect. The...

    Started by hsbrook‎, 04-04-2014 03:54 PM
    anova, mixed between anova, psychology, spss
    • Replies: 3
    • Views: 1,266
    04-16-2014, 11:21 PM Go to last post

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