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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: 31,369
    11-10-2005, 12:21 AM Go to last post
  1. Book for HLM

    Hi everyone. Can anyone recommend a good book for studying HLM? Thanks for any help!

    Started by Shachar‎, 10-10-2017 08:38 AM
    • Replies: 5
    • Views: 135
    Today, 06:18 AM Go to last post
  2. Can I calculate Cohen's d on z scores?

    Hi everyone, I am trying to calculate the size of the difference between the means of two groups in a psychological test. However, I am not using...

    Started by css‎, 10-15-2017 08:16 AM
    • Replies: 0
    • Views: 133
    10-15-2017, 08:16 AM Go to last post
  3. p value of .051

    Hello everyone, If I have a p-value of .051 is considered over .05? Should I do not reject the null hypothesis? Thanks

    Started by Anna II‎, 10-09-2017 04:57 PM
    • Replies: 5
    • Views: 223
    10-10-2017, 05:13 PM Go to last post
  4. Which test to use for binary variables and concerns about multiple comparisons

    Hi all, I am working on a research project attempting to compare two groups of subjects' (call them A and B) brains based on MRI results. Let's...

    Started by mnd12‎, 09-28-2017 04:18 PM
    • Replies: 3
    • Views: 329
    09-28-2017, 09:14 PM Go to last post
  5. Discriminant Validity using Correlation Matrix

    Hi.. I need help regarding establishing discriminant validity of an adapted scale using the correlation matrix. Original scale had 36 items. I...

    Started by chhavimittal‎, 09-26-2017 11:29 PM
    • Replies: 0
    • Views: 164
    09-26-2017, 11:29 PM Go to last post
  6. measuring same variables for unrelated topics within subjects

    Hello everyone, Purpose of the study: I want to find out how the perceived competence and warmth of an activist group relates to whether someone...

    Started by eku‎, 08-23-2017 04:11 PM
    • Replies: 2
    • Views: 232
    09-25-2017, 10:42 AM Go to last post
  7. Regression with change scores

    I handled it. you can close to topic.

    Started by PsychologyS‎, 09-17-2017 05:31 AM
    • Replies: 0
    • Views: 259
    09-17-2017, 05:31 AM Go to last post
  8. Decision Making Attributes Statistical Significance Tests

    Hi All So I am looking for some advice regarding the best test to use for the scenario below (the data itself is not normally distributed and the...

    Started by Taygarr‎, 09-03-2017 12:26 AM
    • Replies: 1
    • Views: 482
    09-04-2017, 05:58 AM Go to last post
  9. A problem with covariates

    Hello everyone. I have a problem with covariates. I have a database with a mixed design, with a manipulation as a within-subject variable. Each...

    Started by Shachar‎, 08-25-2017 04:23 AM
    • Replies: 0
    • Views: 347
    08-25-2017, 04:23 AM Go to last post
  10. Bradley-Terry paired comparisons ranking with SPSS

    Hey everyone! I apologize if this is a repeated topic; I ran the search function in different browsers, but the function did not work. I would...

    Started by Labestia‎, 08-24-2017 07:16 AM
    • Replies: 0
    • Views: 261
    08-24-2017, 07:16 AM Go to last post
  11. Comparing the academic performance between two classes

    Compare the academic performance between two classes Dear all, I kindly need your help. Here is my background. I am a secondary school teacher....

    Started by lcy‎, 08-16-2017 07:55 PM
    • Replies: 6
    • Views: 438
    08-18-2017, 10:51 PM Go to last post
  12. Analysis, Thesis on Mindfulness

    Hey guys, I am currently struggling with identifying the appropriate statistical method for my bachelor thesis. Participants are measured over...

    Started by Lamb‎, 08-16-2017 06:53 AM
    anova, thesis
    • Replies: 3
    • Views: 303
    08-18-2017, 03:24 AM Go to last post
  13. correlation of age at onset of "sexual abuse" of minors and impairment

    Hello, I have a question about the following things: Some studies define sexual abuse of minors as unwanted sexual contacts before the age of...

    Started by Filip2017‎, 08-16-2017 11:40 AM
    • Replies: 1
    • Views: 179
    08-17-2017, 11:30 PM Go to last post
  14. Analysis part for thesis: Spearman‘s range correlation test?

    Dear Forum members, I kindly need your help in deciding what statistical method to use in the analysis part of my thesis. What measurements do I...

    Started by Leafe Leave‎, 08-15-2017 03:43 PM
    • Replies: 4
    • Views: 314
    08-16-2017, 05:57 AM Go to last post
  15. How to Model Multiple Responses?

    Dear All, I need your assistance in choosing the right analysis method. A sociological research came to see if there are relations between...

    Started by Yankel‎, 08-06-2017 06:31 AM
    • Replies: 0
    • Views: 352
    08-06-2017, 06:31 AM Go to last post
  16. Reliability Analysis for Ability Test (Signal Detection)

    Good day all, I have been tasked with working out the alpha for an ability test which measures only two factors: Median Reaction Time (in ms) and...

    Started by Xaos‎, 08-02-2017 01:42 AM
    ability, reliability analysis, spss
    • Replies: 0
    • Views: 261
    08-02-2017, 01:42 AM Go to last post
  17. Nine variable - Looking for a relationship

    Nope, not a dating advert, just looking for advise on some stats. I have 9 variables and looking to see if a relationship exists. Looking at...

    Started by Armaghgeddon‎, 07-25-2017 11:07 AM
    • Replies: 5
    • Views: 698
    07-25-2017, 02:54 PM Go to last post
  18. Graphing nonlinear results

    Not sure as newbie where to best post this question. A graph in a psychology article has a graph for survey scores. Would like to figure out formula...

    Started by saratogacoach‎, 07-20-2017 12:34 PM
    • Replies: 7
    • Views: 524
    07-22-2017, 05:59 PM Go to last post
  19. Filling in Anova Tables

    Hello, Can anyone provide a step by step example of how to go about filling in the missing areas in this Anova output table for my homework...

    Started by Stephie‎, 07-20-2017 08:15 PM
    • Replies: 0
    • Views: 340
    07-20-2017, 08:15 PM Go to last post
  20. Which test in SPSS should I use?

    I'm trying to work out whether there are relationships between two IVs and one DV (I'm not interested in correlations between IVs, though they may...

    Started by P3rs3ph0n3‎, 07-18-2017 08:51 AM
    • Replies: 0
    • Views: 680
    07-18-2017, 08:51 AM Go to last post
  21. blank spaces on SPSS output

    Hi, I am running a 2x3 repeated measures ANOVA. My IVs are both categorical variables and my DV is a continuous variable - score (out of 200). ...

    Started by charlie242‎, 07-13-2017 05:45 AM
    anova, output error, repeated measures
    • Replies: 0
    • Views: 452
    07-13-2017, 05:45 AM Go to last post
  22. Too many variables - Multivariate analysis of covariance - New to this

    Hi there. This will be my first post on the forums, I'm a Psychology student currently conducting research at an internship. We treat IDD...

    Started by griffin.625‎, 07-11-2017 03:31 PM
    covariance, multidimensional scaling, multivariate analysis, multivariate data sets, variable coding
    • Replies: 2
    • Views: 469
    07-11-2017, 05:19 PM Go to last post
  23. Power analysis for 3-way interaction with 1 between-, 2 within-subjects factors

    Hi all, I am trying to use G*Power 4 to compute the sample size that I will need to detect a 3-way interaction (2 x 2 x 2) in a mixed-effect ANOVA...

    Started by PEEP_lab‎, 07-10-2017 04:29 PM
    interaction terms, mixed anova, power analysis
    • Replies: 0
    • Views: 341
    07-10-2017, 04:29 PM Go to last post
  24. Multiple Scales within a Moderator

    Dear all, I am conducting a moderated multiple regression analysis for my research. One of my moderators comprises 5 different scales (with their...

    Started by milvucic‎, 07-10-2017 01:59 AM
    • Replies: 0
    • Views: 322
    07-10-2017, 01:59 AM Go to last post
  25. Mixed methods ANCOVA

    Hey, I wondered if anyone could help me out. I am trying to conduct an ANCOVA for my masters project and am confused on how to enter the data. So...

    Started by belladee‎, 07-09-2017 05:17 PM
    psychology, psychology statistics, spss
    • Replies: 0
    • Views: 250
    07-09-2017, 05:17 PM Go to last post
  26. Repeated measures with covariate

    Hi, My study design include two indepedent catagorial within-subject variables and six continuous dependent variables. First, I want to make...

    Started by PsychologyS‎, 06-30-2017 03:10 AM
    • Replies: 4
    • Views: 571
    06-30-2017, 12:58 PM Go to last post
  27. Confirmed model doesn't fit with different population. Should I return to EFA or not?

    I am trying to confirm the model for a 16-item measure. It has been confirmed for a homogeneous group, however, I want to determine if the model fits...

    Started by Jmwarren‎, 06-29-2017 02:43 PM
    cfa, efa
    • Replies: 1
    • Views: 309
    06-29-2017, 08:39 PM Go to last post
  28. Question about 3X3 repeated measures ANOVA and simple effects

    First time posting here. I have conducted a transcranial magnetic stimulation study and am analyzing the results as a 3x3 repeated measures ANOVA....

    Started by jcoetzee‎, 06-23-2017 04:43 PM
    interaction, repeated measure anova, simple effects, spss
    • Replies: 1
    • Views: 434
    06-24-2017, 08:59 PM Go to last post
  29. Question Let me know a better analysis method?

    I have two IVs; "collection method" (online and classroom) and "culture" (A and B), one continuous variable ("Age") and 8 DVs (well-being variables...

    Started by joonha35‎, 06-14-2017 08:55 PM
    group differences, t-tests
    • Replies: 13
    • Views: 1,061
    06-24-2017, 12:55 AM Go to last post
  30. Question regarding Repeated measures 3-way ANOVA for thesis

    Dear Readers, I am new to this forum and I have a question regarding my output/researchdata. I am currently analyzing my hypothesis with respect...

    Started by Naomiii‎, 06-22-2017 09:37 AM
    anova, bonferonni, ibm spss, p-value, repeated measures
    • Replies: 1
    • Views: 297
    06-23-2017, 04:36 PM Go to last post
  31. Need help with performing the correct analysis?

    I have: Two categorical Dependent Variables: Treatment(A, B), and Genotype (WT, HET). Two continuous Independent Variables: Latency (seconds),...

    Started by Jonnycbad‎, 06-14-2017 11:59 AM
    • Replies: 1
    • Views: 502
    06-14-2017, 01:16 PM Go to last post
  32. ANOVA und Cohens d`?

    Hi there! So, i did a psychological study where i tried to manipulate flow. In that study every subject had to play a racing game 6 times and...

    Started by hasenkuchen‎, 06-14-2017 06:12 AM
    • Replies: 1
    • Views: 414
    06-14-2017, 09:45 AM Go to last post
  33. Comparing a test vs gold standard in 4x4 matrix

    Hello everybody, I am trying to figure out how to measure the specificity and recall of a test I'm working in. The test is aimed to classify items...

    Started by AJLRB‎, 06-13-2017 04:24 AM
    • Replies: 0
    • Views: 471
    06-13-2017, 04:24 AM Go to last post
  34. Simple survey analysis questions

    Hello all, I've been asked to assist with the statistical analysis of some survey data, and I'm a bit of a novice with this type of analysis, so...

    Started by TefJLives‎, 06-11-2017 03:38 PM
    nonparametric tests, survey analysis, survey design
    • Replies: 0
    • Views: 1,572
    06-11-2017, 03:38 PM Go to last post
  35. Sampling in Randomized Evaluation

    I am designing an experiment in which the treatment is administered through information priming. I plan to conduct the experiment in a large city...

    Started by has70‎, 06-11-2017 03:19 PM
    randomized control trials, sampling plan
    • Replies: 0
    • Views: 376
    06-11-2017, 03:19 PM Go to last post
  36. Software to perform conjoint analysis

    What software supports conjoint analysis?

    Started by Meenakshi Tiwari‎, 06-11-2017 05:28 AM
    • Replies: 0
    • Views: 477
    06-11-2017, 05:28 AM Go to last post
  37. ANCOVA with dichotomous dependent variable - How?

    Hi everyone! I am a new subscriber with a little talent for statistics and I study developmental psychology :) I need to perform and ANCOVA on a...

    Started by PsychSilvia‎, 06-08-2017 08:29 AM
    • Replies: 3
    • Views: 566
    06-09-2017, 06:28 AM Go to last post
  38. Selecting test - please help

    Hi everybody, I am a master student doing my first quantitative analysis. I want to analyze if there is a relationship between a gender quota...

    Started by rmbrito‎, 06-06-2017 09:26 AM
    • Replies: 1
    • Views: 964
    06-07-2017, 05:07 AM Go to last post
  39. Question Is there any justification to treat a sum of ordinal scores as a ratio score?

    More than once, I noticed that researchers sum ordinal scores of e.g. items of a psychometric test to gain a total score. This score is e.g....

    Started by PDot312‎, 06-04-2017 04:08 PM
    • Replies: 1
    • Views: 649
    06-04-2017, 05:05 PM Go to last post
  40. Smile Multiple regression question

    Hello everyone, I cannotfind the solution to following question and dont really know how to exclude any alternative. We regress an outcome...

    Started by SweetValley‎, 06-01-2017 12:42 PM
    • Replies: 9
    • Views: 832
    06-02-2017, 10:39 AM Go to last post
  41. Help Please

    A local United Way and a group of community agencies in a large urban area have decided that making sure young children are ready to enter the school...

    Started by Ktina‎, 02-27-2017 08:30 PM
    • Replies: 2
    • Views: 1,852
    06-02-2017, 10:39 AM Go to last post
  42. Correcting for repeated testing with 4 mediation analyses?

    Hi guys, First time poster here, sorry if I post this at the wrong spot or something like that. For my thesis if have the following 4...

    Started by Yulir1993‎, 04-17-2017 11:00 AM
    bonferroni correction, mediation analysis, multiple testing, regression analysis, spss 23
    • Replies: 1
    • Views: 817
    06-02-2017, 02:32 AM Go to last post
  43. Testing differences between groups over time

    Hello, I am writing a research proposal that looks at a change in scores over time between three groups. Here is the basic set-up: Three...

    Started by bbphd17‎, 04-19-2017 09:56 AM
    • Replies: 1
    • Views: 1,041
    06-02-2017, 02:19 AM Go to last post
  44. iPod Track Listening & Biological Samples— Within-Subjects Test/Regression?

    I am analyzing data in which participants listened to iPods and provided biological samples on the same days. The iPod Listening Intervention was 1...

    Started by statshelp1312‎, 05-10-2017 11:40 AM
    biological statistics, ipod, regression analysis, within-subjects
    • Replies: 1
    • Views: 687
    06-02-2017, 02:07 AM Go to last post
  45. Which method shall I use?

    Dear All, first of all I would like to thank you for creating and running this forum. At least there is a place where desperado like me can ask...

    Started by Zürcherin‎, 05-08-2017 06:28 AM
    • Replies: 1
    • Views: 896
    06-02-2017, 02:03 AM Go to last post
  46. One way ANCOVA - Data failing assumption of linearity

    Hello I'm working on my Msc in Psychology thesis, and I've chosen to explore if there are group differences between Internal vs External...

    Started by claney‎, 05-11-2017 05:08 AM
    • Replies: 1
    • Views: 978
    06-02-2017, 01:56 AM Go to last post
  47. Paired sample t test vs Wilcoxon signed ranks test

    As part of assessment, we are using a five-question multiple choice pretest and posttest. We have been using the Wilcoxon signed ranks test to...

    Started by Sherrington‎, 05-19-2017 01:33 PM
    • Replies: 1
    • Views: 857
    06-02-2017, 01:52 AM Go to last post
  48. Justifying use of hierarchical multiple linear regression (MHLR)

    Hi, My research question is looking at the predictors of the transfer of training. I have performed a series of separate hierarchical...

    Started by EmmaL‎, 05-31-2017 10:58 AM
    • Replies: 0
    • Views: 493
    05-31-2017, 10:58 AM Go to last post
  49. Is it possible or meaningful to run an ANOVA on only two groups?

    Hi, we have been given a bunch of homework questions and i can't seem to work this one out. "Is it possible or meaningful to run an ANOVA on...

    Started by UnnieE‎, 05-30-2017 05:46 PM
    • Replies: 3
    • Views: 700
    05-30-2017, 09:52 PM Go to last post
  50. Forced choice test with six options - analysis

    Dear all, I had a profile here before, but I cannot access it anymore since I registered it on an e-mail I don't have anymore (since I changed...

    Started by Pikkuhirmulisko‎, 05-30-2017 04:41 AM
    • Replies: 0
    • Views: 585
    05-30-2017, 04:41 AM Go to last post
  51. Planned a MANOVA, but data may suggest a MANCOVA

    Hi there! Thanks for taking a minute to help me. I'm in the final days of my PhD and running analyses for my final study. But the longer I look at...

    Started by nerdlynoel‎, 05-28-2017 08:30 AM
    advice needed, mancova, manova, phd
    • Replies: 0
    • Views: 694
    05-28-2017, 08:30 AM Go to last post
  52. Help - analyzing monthly data for nursing home residents

    Hi there - I am trying to analyze data from approximately 40 nursing home residents. We collected both Cohen-Mansfield and Cornell Brown monthly,...

    Started by alexangiraffe‎, 05-24-2017 02:22 PM
    • Replies: 6
    • Views: 1,109
    05-24-2017, 03:41 PM Go to last post
  53. Question Choosing the righ test

    Hello, I'm a psychology student and I'm really, really bad at SPSS so I need some help. If this is not the right place to post this, please...

    Started by DanC‎, 05-14-2017 11:52 AM
    • Replies: 7
    • Views: 1,524
    05-16-2017, 11:05 PM Go to last post
  54. Cool How to show that 2 DVs follow different nonlinear trends along one IV

    Hi! I have collected data on an experiment where I measure two dependent variables: detection of a stimulus, and accuracy making a judgement on that...

    Started by georgekoko‎, 05-11-2017 05:35 PM
    • Replies: 0
    • Views: 717
    05-11-2017, 05:35 PM Go to last post
  55. Correction factor for density calculation of different network sizes

    Hi everyone, For my PhD research I am comparing the density of social networks of different sizes, and density is simply calculated in a linear...

    Started by Pentangeli‎, 05-10-2017 03:54 PM
    • Replies: 0
    • Views: 747
    05-10-2017, 03:54 PM Go to last post
  56. Help with Ordinal Data

    Hi all! I have some data collected for an intervention study where we had participants from two groups (anxious vs non-anxious) undergo one of two...

    Started by LucidMind‎, 05-08-2017 02:30 PM
    • Replies: 0
    • Views: 851
    05-08-2017, 02:30 PM Go to last post
  57. Red face Test Your Quantitatie Research Design Knowledge

    CAN SOMEONE PLEASE HELP WITH THE FOLLOWING QUESTIONS??? Karsh (1983) designed an experiment on the relationship between early handling and...

    Started by letsgetstatistic‎, 04-20-2017 11:52 AM
    confounds, helping, levels of iv and dv., quiz
    • Replies: 5
    • Views: 1,235
    05-08-2017, 08:25 AM Go to last post
  58. All this data and IDK what to do with it.

    I need assistance. I am an undergrad social work major in a stats class. I have access to excel and SPSS. My research question: Does the lack of...

    Started by lunade‎, 05-08-2017 02:02 AM
    psychology, social work, statistics
    • Replies: 0
    • Views: 860
    05-08-2017, 02:02 AM Go to last post
  59. What analysis do I run?

    Hi All, I am conducting a study within the ASD population that is looking at IQ, executive function and adaptive skills for which of them I am...

    Started by jeannette88‎, 04-18-2017 04:04 PM
    • Replies: 11
    • Views: 1,343
    05-08-2017, 01:57 AM Go to last post
  60. urgent spss anova help!!!!

    I have to enter data into spss that is already given to me the study description is bellow. i would like to know three things; 1 is this a one-way...

    Started by stizzylita19‎, 04-24-2017 11:13 AM
    anova, data entry, spss
    • Replies: 4
    • Views: 1,398
    05-08-2017, 01:56 AM Go to last post

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