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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: 26,225
    11-10-2005, 12:21 AM Go to last post
  1. 3 X 2 X 2 mixed design

    Hi all, First time posting. I am having trouble 1) figuring out spss output for and 2) interpreting findings for a study I conducted with a 3...

    Started by kme‎, 04-08-2015 02:36 PM
    3-way interaction, mixed design, spss output
    • Replies: 0
    • Views: 1,001
    04-08-2015, 02:36 PM Go to last post
  2. Very easy question about pooled error.

    Hi, First time poster. I haven't done quantitative analysis for several years and I'm shamefully having trouble with a simple issue. I'm doing...

    Started by kansaskansas‎, 04-08-2015 02:18 PM
    • Replies: 0
    • Views: 489
    04-08-2015, 02:18 PM Go to last post
  3. Smile How to use normative data correctly for group comparisons

    This is my first time doing research at this level and I am therefore not really sure how to go about what I need help with, but I’ll try to make...

    Started by hasargen‎, 04-07-2015 07:02 AM
    • Replies: 0
    • Views: 836
    04-07-2015, 07:02 AM Go to last post
  4. Is it possible to run ANOVA using Mean differences?

    I'm wondering whether it is possible, and how to run an ANOVA on mean differences rather than on means. I want to run a 2*3 ANOVA on multiple...

    Started by Jon_Gall‎, 04-06-2015 01:54 PM
    anova, factorial design, psychology
    • Replies: 0
    • Views: 875
    04-06-2015, 01:54 PM Go to last post
  5. Is this Experimental Design even possible? Help please!

    Hello all, First thank you in advance for any and all help given in response to this question. I've been searching this forum as well as other...

    Started by thechairman‎, 04-02-2015 11:53 AM
    design of experiments, experimental design, methodology, psychology, psychology statistics
    • Replies: 1
    • Views: 676
    04-06-2015, 02:12 AM Go to last post
  6. ANOVA with significant interaction, but no significance found in follow up tests

    Hi there, I'm looking for some suggestions on what to do next, or, how to verbally explain my confusing findings. I have a 2X2 between subjects...

    Started by lauramdavies‎, 04-04-2015 10:04 AM
    • Replies: 3
    • Views: 1,564
    04-05-2015, 08:13 AM Go to last post
  7. Help with the formatting of my data in SPSS

    Hi guys, For my experiment i was looking at participants reaction time and accuracy in a shape location task. Each participant engaged in 16...

    Started by Statosaurus‎, 04-04-2015 06:30 AM
    • Replies: 1
    • Views: 757
    04-05-2015, 03:15 AM Go to last post
  8. Dissertation Results Comparisons - which SPSS method should I use?

    Hi everyone, I'm in my final year as a Psychology student aspiring to be a cognitive neuroscientist (accepted to birmingham university provided I...

    Started by Statisticsnewby‎, 04-03-2015 01:36 PM
    • Replies: 2
    • Views: 932
    04-04-2015, 06:08 AM Go to last post
  9. which data to use

    Hi I collected pre-intervention quantitative data via a questionnaire from 70 children 2 years ago. I then went to do the post intervention data...

    Started by RAYDO‎, 04-03-2015 03:51 PM
    • Replies: 0
    • Views: 571
    04-03-2015, 03:51 PM Go to last post
  10. Chi Squared test of proportions

    Hi there, I am currently coming towards the end of my dissertation, and I am looking for a bit of help with how to test distributions using a chi...

    Started by tomkilbey29‎, 03-31-2015 11:24 AM
    • Replies: 0
    • Views: 653
    03-31-2015, 11:24 AM Go to last post
  11. Post Pearsons correlation, confidence intervals, bootstrapping... Statistical nightmare

    I am currently running a project where I have 4 variables and a questionannaire with 4 subscales. I have performed a Pearsons correlation on this...

    Started by DK-IV‎, 03-31-2015 09:55 AM
    bootstrapping, confidence intervals, pearsons correlation
    • Replies: 0
    • Views: 547
    03-31-2015, 09:55 AM Go to last post
  12. Question Workshop evaluation with control group and pre/post/follow-up questionnaire

    Hello, Thanks for taking the time to read this rather long message. It will become clear that I have a terrible grasp of data analysis and need...

    Started by Beano‎, 03-23-2015 11:07 AM
    ancova, questionnaire
    • Replies: 9
    • Views: 1,933
    03-30-2015, 09:19 AM Go to last post
  13. One-Way Anova - Combining three variables into one variable with three levels.

    Hello, I have one independent variable with three levels: Sexual Prime Condition, Male Prime and Control Prime. I aim to conduct a one-way Anova...

    Started by RhiannonPidgeon‎, 03-30-2015 07:23 AM
    • Replies: 0
    • Views: 557
    03-30-2015, 07:23 AM Go to last post
  14. Question Buss-Perry syntax

    Hi guys, need help for a project research. I need to compare and analyze agressivness levels using Buss-Perry Aggresion Questionnaire, but I get lost...

    Started by statbeginner‎, 03-26-2015 03:40 PM
    • Replies: 0
    • Views: 664
    03-26-2015, 03:40 PM Go to last post
  15. What analysis for two independent groups with one additional dependent group?

    Hi all We had people record responses while assigned to 2 different conditions (A and B). We then divided the responses from participants in B...

    Started by Søren‎, 03-25-2015 08:21 AM
    • Replies: 8
    • Views: 1,302
    03-26-2015, 06:24 AM Go to last post
  16. No interaction but significant planned comparisons - how to interpret?

    Hi, I'm reading an article in which the authors describe how they weren't able to find an interaction between A and B, but that in planned...

    Started by replica‎, 12-02-2014 06:45 AM
    • Replies: 3
    • Views: 783
    03-25-2015, 01:26 PM Go to last post
  17. Non-parametric three-way ANOVA?

    Hi everyone, I and some of my classmates need to include a data analysis strategy in a research proposal assignment and could really use some help...

    Started by Katbooey‎, 03-23-2015 05:16 PM
    anova, spss
    • Replies: 3
    • Views: 2,144
    03-24-2015, 03:48 AM Go to last post
  18. How to examine relationship between independent, dependent and explanatory variables?

    Hello, I am doing a study looking at the effects of positive thinking (PT) and exercise on depression. I'll be measuring at LEAST 2 outcomes. So...

    Started by Jake-Finn‎, 03-19-2015 06:12 PM
    • Replies: 4
    • Views: 1,112
    03-22-2015, 07:35 PM Go to last post
  19. Boston Naming Test

    Dear Friends, I am trying to define the differences of two means in Boston Naming Test (BNT). I want to conduct a multipl regression with...

    Started by rezzak‎, 03-22-2015 03:47 AM
    bootstraping, boston naming test, regression
    • Replies: 0
    • Views: 1,347
    03-22-2015, 03:47 AM Go to last post
  20. Smile Need help: reg EQS and Goodness of Fit tests

    Hi! Hope you guys could help me out here... I'm doing a path analysis on EQS, and the goodness of fit test results i got are the ff - i'm not sure if...

    Started by lissa89‎, 03-16-2015 04:17 AM
    cfi, eqs, goodness-of-fit, rmsea
    • Replies: 7
    • Views: 1,257
    03-17-2015, 12:39 PM Go to last post
  21. Comparing two groups in the Theory of Planned Behavior

    Greetings all: I am trying to determine the best method to compare two groups (gender in this case) means/factor loadings on the Theory of Planned...

    Started by Nole‎, 03-11-2015 05:11 PM
    • Replies: 1
    • Views: 2,097
    03-16-2015, 07:48 PM Go to last post
  22. Thumbs up Which test to use? Correlation or Regression

    Hi, I need some help with choosing the statistical analysis. Details of my study. all participants will complete surveys measuring self...

    Started by sarah.cho‎, 03-14-2015 07:47 PM
    control group, correlation analysis, regression analysis, thesis
    • Replies: 5
    • Views: 855
    03-16-2015, 08:13 AM Go to last post
  23. Appropriate Statistical Test?

    Hi everyone, I have a question regarding the appropriate statistical test to use for a particular experiment. This is a 2x2 within-subject...

    Started by boogeyzero‎, 03-12-2015 02:15 AM
    • Replies: 0
    • Views: 836
    03-12-2015, 02:15 AM Go to last post
  24. How to do Mediation across pre-post timepoints?

    Hi all, I am looking into analyzing potential mediation and not sure how to approach it with two timepoints. For some context, participants are...

    Started by roquera‎, 03-10-2015 06:35 PM
    longitudinal, mediation, mediation analysis
    • Replies: 1
    • Views: 1,247
    03-11-2015, 07:17 AM Go to last post
  25. Analysis for a repeated measures design with covariate that varies over conditions?

    Hi all, I'm trying to find the correct analysis that will allow me to carry out the equivalent of a repeated measures MANCOVA with a covariate...

    Started by KVella‎, 03-05-2015 02:33 AM
    anova, covariate, manova, repeated measures, spss
    • Replies: 3
    • Views: 997
    03-10-2015, 04:03 PM Go to last post
  26. Unhappy Likert scale analysis: Help!

    Hi, I'm new here. I'm at my final bachelor year and in order to graduate, I need to write a thesis. The subject of my thesis regards the...

    Started by JustJoe‎, 03-05-2015 01:52 PM
    likert scale
    • Replies: 3
    • Views: 1,094
    03-06-2015, 03:10 PM Go to last post
  27. A Priori Power and Sensibility analysis

    Hi everyone, I'm new around here, so i don't know if this thread belong to this board, but if it doesn't just let me know. Here is the thing....

    Started by dhvalden‎, 03-02-2015 01:47 PM
    • Replies: 0
    • Views: 768
    03-02-2015, 01:47 PM Go to last post
  28. Mediation in SPSS

    Hi all, I need some help with the research that I'm curretly doing. I would like to analyse the mediation effect in this case: 1. SES -...

    Started by marta2992‎, 02-27-2015 10:09 AM
    mediation. spss.
    • Replies: 1
    • Views: 884
    02-27-2015, 01:13 PM Go to last post
  29. Beta weights - HELP PLEASE

    Are Beta weights the same as squared predictor-dependent variable correlation coefficients? Thanks! Ryan_Cohen

    Started by Ryan_Cohen‎, 02-24-2015 09:06 PM
    • Replies: 2
    • Views: 844
    02-25-2015, 06:48 PM Go to last post
  30. unipolar and bipolar scales

    Can I correlate unipolar and bipolar scales without doing anything special? A unipolar scale runs from zero to some number, e.g., 0-50 (usually...

    Started by mkspindler1‎, 02-24-2015 03:27 AM
    • Replies: 0
    • Views: 1,033
    02-24-2015, 03:27 AM Go to last post
  31. [help] Reporting Fisher r to z

    How to report Fisher r to z in APA format? I used the online calculator to calculate the z.......but I am not sure how to report it in my paper.

    Started by heidi‎, 02-20-2015 01:46 AM
    • Replies: 0
    • Views: 1,137
    02-20-2015, 01:46 AM Go to last post
  32. Not Sure How to Start

    I'm taking an online course, have read through the textbook, gone through the PowerPoint notes, tried looking this up elsewhere online, consulted...

    Started by colsam‎, 02-19-2015 02:49 PM
    • Replies: 2
    • Views: 841
    02-19-2015, 11:44 PM Go to last post
  33. Question pre- and post-test analysis: multiple comparison problem? can someone help me out?

    Dear all, I am doing research about a cognitive training program. I am curious to know how to analyse if the difference between the pre and the...

    Started by maart91‎, 02-16-2015 08:32 AM
    • Replies: 0
    • Views: 698
    02-16-2015, 08:32 AM Go to last post
  34. goal: why cumulative % exceeds 1 when I do principal axis factoring in STATA

    Hi, I surfed the net only to find reasons why it could exceed 1 if I use ipf or pf rotation for exploratory factory analysis. How about principal...

    Started by talkstats_user‎, 02-15-2015 08:57 AM
    • Replies: 0
    • Views: 805
    02-15-2015, 08:57 AM Go to last post
  35. Need help with an assignment for stats class: reading Two Factor ANOVA tables

    Hello, first I suck at statistics and have fallen behind a bit in my class and have a lot of very obvious questions to ask. This is probably one of...

    Started by Rodgelinkbot‎, 02-13-2015 11:29 PM
    • Replies: 2
    • Views: 870
    02-14-2015, 05:38 PM Go to last post
  36. Need help selecting the appropriate test!

    Hello all, I'm trying to determine if gender has an influence in 1. Qualifying for a competition (3 finalists) and 2. winning a competition (New...

    Started by Srab‎, 02-13-2015 11:35 AM
    • Replies: 0
    • Views: 546
    02-13-2015, 11:35 AM Go to last post
  37. comparing means of aggregate data

    Dear community, We recently administered a test with 30 multiple choice questions to a sample of freshmen at our college. I also received the...

    Started by EffectSize‎, 02-13-2015 10:25 AM
    • Replies: 0
    • Views: 645
    02-13-2015, 10:25 AM Go to last post
  38. Experimental design question

    I am struggling with the complexity of my experimental design... I apologize in advance for any incorrect terminology or grammar. I know that I...

    Started by belench19‎, 02-05-2015 10:15 PM
    blocking, experimental design, factorial design, nesting, split plot
    • Replies: 7
    • Views: 1,455
    02-12-2015, 03:08 PM Go to last post
  39. Grouped continuous variables in descriptives

    Hi, I am conducting a study in which I have measured stress (lowest score 1, highest 5 - Likert) and several other variables such as age,...

    Started by funnyman‎, 02-06-2015 01:04 PM
    • Replies: 3
    • Views: 972
    02-12-2015, 12:02 PM Go to last post
  40. choose a test for 4 independent variables research

    Hi, I conducdt a small research with 4 categorial independents variables and 1 ratio sependent variable. i intrested to find out about each...

    Started by natan1‎, 02-09-2015 11:34 AM
    • Replies: 8
    • Views: 1,194
    02-10-2015, 01:47 PM Go to last post
  41. linearity assumption HELP

    Hi, I am horrible with interpreting scatter plots and actually have a little argument with a friend over linearity of relationship between...

    Started by stell93‎, 02-09-2015 06:51 PM
    • Replies: 2
    • Views: 1,174
    02-10-2015, 05:44 AM Go to last post
  42. analysing cognitive rehabilitation and controlling for spontaneous recovery(SEM)

    Dear all, When trying to figure out the proportion of explained variance of a cognitive rehabilitation program for stroke patients, you have to...

    Started by maart91‎, 02-10-2015 04:46 AM
    control variable, sample groups, sem
    • Replies: 0
    • Views: 512
    02-10-2015, 04:46 AM Go to last post
  43. [R - "interval range"] - how to analyse a self-applied range?

    I am conducting a experiment in the form of a survey where I test the effect of three different framings on the same subject (data collecting has not...

    Started by hotjer‎, 02-09-2015 06:20 PM
    • Replies: 0
    • Views: 540
    02-09-2015, 06:20 PM Go to last post
  44. Violation of Homogeneity of Variance

    I'm using SPSS to test whether my two groups (HCs and Offspring) have a difference in the number of errors comitted on a psych measure. Total sample...

    Started by Shayshu‎, 02-05-2015 07:30 PM
    • Replies: 7
    • Views: 1,320
    02-09-2015, 06:00 PM Go to last post
  45. How to test my hypothesis?

    TLDR: I have acquired data via questionnaire, want to test hypothesis as in picture below. What to do? Dear all, I am studying psychology in...

    Started by AsbachAlex‎, 01-28-2015 05:06 AM
    • Replies: 5
    • Views: 1,461
    02-06-2015, 09:59 AM Go to last post
  46. A psy student in desperate need of help.

    Hey guys, lovely to know there's a forum that does SPSS. I have a task in Inferential Statistics that consists of 5 questions. I got two covered, but...

    Started by Ross‎, 02-04-2015 07:16 AM
    • Replies: 3
    • Views: 1,132
    02-05-2015, 02:19 PM Go to last post
  47. What test?

    Hello, I have 46 participants coming on three different days. They will be doing 3 tasks with three treatment/stimulation conditions. 1st...

    Started by rafiq‎, 02-05-2015 10:51 AM
    • Replies: 0
    • Views: 748
    02-05-2015, 10:51 AM Go to last post
  48. Psychology Research Data Analysis Help

    Just a little background on my data: I have been thinking about names and how I cannot imagine anyone I know to have a different name. Their name...

    Started by BrownIRL‎, 02-04-2015 03:34 PM
    • Replies: 2
    • Views: 941
    02-04-2015, 06:37 PM Go to last post
  49. Sociology - A Mapping of Cultural Practices

    Hi, For my thesis I study the french cultural social network SensCritique.com allowing people to rate and review different kind of cultural...

    Started by Mistral‎, 01-30-2015 07:16 AM
    • Replies: 2
    • Views: 997
    02-04-2015, 04:00 AM Go to last post
  50. 3 ways to decompose the strength of prediction in linear regression.

    I am wondering how to explain the three ways that the strength of prediction in linear regression can be decomposed. I need to explain using words...

    Started by Maybel‎, 03-26-2013 07:23 PM
    • Replies: 5
    • Views: 2,246
    02-03-2015, 01:13 AM Go to last post
  51. An unusual case

    Having some trouble figuring out the appropriate test for my data. The problem is structured as follows. For each of my subjects I have: 1) a...

    Started by grayden‎, 02-02-2015 10:50 PM
    • Replies: 0
    • Views: 525
    02-02-2015, 10:50 PM Go to last post
  52. Please help--what test do I use?

    Hello, I'm trying to answer the following using SPSS: is there a difference in Offspring Children and Healthy Controls on the number of errors...

    Started by Shayshu‎, 02-02-2015 12:38 AM
    • Replies: 1
    • Views: 644
    02-02-2015, 03:43 AM Go to last post
  53. need some help for finding the right method :)

    .-.-.-.-.-

    Started by uku1234‎, 02-01-2015 09:36 PM
    • Replies: 0
    • Views: 734
    02-01-2015, 09:36 PM Go to last post
  54. Unhappy Design to use?

    If I want to test music use for social reasons against music use for personal reasons and scores on an emotional wellbeing questionnaire, would this...

    Started by Tyldo‎, 01-29-2015 03:50 AM
    method, research design
    • Replies: 2
    • Views: 996
    01-29-2015, 06:40 PM Go to last post
  55. Using a dependent t-test with z-scores

    Hi, I'm trying to run a dependent t-test to check if the manipulation of the independent variable in an experiment worked. The independent...

    Started by ostwaertstramper‎, 01-26-2015 02:46 PM
    • Replies: 2
    • Views: 779
    01-27-2015, 05:23 AM Go to last post
  56. Change within groups and differences between groups

    Hi All, I have a question that perhaps is basic for most of you. I am hoping I can rely on your expertise to answer this question. I am trying...

    Started by casher‎, 01-24-2015 11:33 PM
    between-groups, change, groups, within-groups
    • Replies: 1
    • Views: 724
    01-24-2015, 11:34 PM Go to last post
  57. Complex study data analysis

    Good afternoon, I have a long-running experiment on music and emotion for my Ph.D. research. Big picture—there have been nine total ‘versions’...

    Started by brennon‎, 01-23-2015 03:47 PM
    data analysis, emotion, music
    • Replies: 2
    • Views: 1,173
    01-24-2015, 11:12 AM Go to last post
  58. Smile Factorial where you can't cross every factor?

    Does anyone know how to do a factorial analysis where you can't cross every factor? I did a melody recognition study where I measured accuracy of...

    Started by TomR‎, 01-21-2015 05:23 PM
    • Replies: 1
    • Views: 1,126
    01-22-2015, 07:57 AM Go to last post
  59. Weaknesses in the assumptions misuses of HLM/multilevel modeling

    Hopefully the title says it. What do people see as potential/perceived weaknesses in the assumptions and/or misuses of HLM/multilevel modeling?

    Started by trinker‎, 01-17-2015 01:35 PM
    hlm, multilevel
    • Replies: 4
    • Views: 1,216
    01-19-2015, 02:59 PM Go to last post
  60. MANCOVA w/ continuous IV?

    For my thesis, I originally proposed to do a MANCOVA with various continuous covariates, four continuous DVs, and two categorical IVs, one of which I...

    Started by ImSkyKid‎, 01-14-2015 12:05 PM
    • Replies: 1
    • Views: 860
    01-19-2015, 03:29 AM Go to last post

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