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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: 21,831
    11-10-2005, 12:21 AM Go to last post
  1. Which test to run?

    I have been getting conflicting results from a few people on what test to use, so please let me know what you think. The design: We have 3...

    Started by atamalu‎, 02-14-2017 07:51 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 574
    Yesterday, 01:21 PM Go to last post
  2. Test for assessing if gender, organisation, management level and age have an impact

    Hi, I am looking to carry out a multiple regression analysis to assess the factors that predict participant's post-training scores on the...

    Started by EmmaL‎, 02-19-2017 06:28 AM
    • Replies: 10
    • Views: 287
    02-23-2017, 11:29 PM Go to last post
  3. How should I analyse this data?

    Hello! I've been banging my head against the wall trying to work out the best way of looking at this data. I think I'm missing something simple,...

    Started by Sin_Nie‎, 02-21-2017 11:10 AM
    • Replies: 5
    • Views: 220
    02-23-2017, 09:39 AM Go to last post
  4. reversed, inverted items... MANOVA

    Do I necessarily need to recode my inverted (negatively worded) items before running a MANOVA? I am running the MANOVA on all items of a...

    Started by T.H.‎, 02-23-2017 07:30 AM
    likert scale, manova, negative wording, recode, reversed items
    • Replies: 0
    • Views: 79
    02-23-2017, 07:30 AM Go to last post
  5. mixing within trial, and between trial effects?

    Hi I'm hoping someone can suggest to this stats dunce an elegant way to analyse the following data. We make a recording from a neuron and apply a...

    Started by ar123‎, 02-22-2017 12:52 PM
    • Replies: 0
    • Views: 71
    02-22-2017, 12:52 PM Go to last post
  6. Statistical analysis

    Hi there I'm a student doing a dissertation about the influence of reward satisfaction on turnover intention. At the moment I'm wondering how to...

    Started by Hypnoz‎, 02-05-2017 02:29 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 796
    02-17-2017, 04:55 PM Go to last post
  7. Inferential results interpretation? Please help

    two players number of games attended per player. t(66)= -3.09, p < .05 d = .35 What does this mean?

    Started by Deanabrown36‎, 02-16-2017 12:21 AM
    • Replies: 2
    • Views: 180
    02-16-2017, 08:56 AM Go to last post
  8. How to conduct a mixed-model analysis in SPSS?

    Hi! I am trying to conduct the following analysis on human subjects data using SPSS. It is my understanding that it requires mixed modeling, and I...

    Started by genericity‎, 02-07-2017 01:24 PM
    • Replies: 1
    • Views: 269
    02-14-2017, 01:26 PM Go to last post
  9. Inter rater agreement - Mezzich's Kappa

    Dear all, I want to assess the quality of the categorization handbook and the accordance between multiple raters who have categorized articles...

    Started by AnnaCop‎, 02-09-2017 09:27 AM
    • Replies: 0
    • Views: 233
    02-09-2017, 09:27 AM Go to last post
  10. general correlation question

    hello! if variable A is correlated to var B (.37) and var B is correlated to var C (.32), can we infer the correlation between var A and var C?...

    Started by mdc333‎, 02-07-2017 04:23 PM
    correlation
    • Replies: 7
    • Views: 326
    02-07-2017, 11:28 PM Go to last post
  11. Unhappy Statistical analysis, where to start with 2600 participants?

    1. purpose of the study / research question / hypotheses, if possible, provide some background or context for us. I'm looking at the dark triad...

    Started by triad‎, 02-06-2017 04:24 PM
    • Replies: 3
    • Views: 292
    02-06-2017, 09:26 PM Go to last post
  12. Very Quick Mediation question

    I want to know if the direct effect of X on Y is significant, whether it is still possible for X to be mediated through M? Thanks a million

    Started by pr15371‎, 02-05-2017 10:54 AM
    • Replies: 2
    • Views: 257
    02-06-2017, 12:34 PM Go to last post
  13. Sample size calculation for a one way anova (three conditions)??

    Hi there, I am designing a study that compares three conditions (differences in glass shape) on one main DV (drinking rate) (as well as some...

    Started by tirl2‎, 01-26-2017 09:13 AM
    effect size, one way anova, power calculation, sample size calculation, sample size determination
    • Replies: 0
    • Views: 421
    01-26-2017, 09:13 AM Go to last post
  14. Raykov's rho

    In relation to Raykov's rho, this might be a naive question but, is appropriate to report it as a consistency index in a multifactorial solution? I...

    Started by ernesthor‎, 01-18-2017 02:27 AM
    • Replies: 1
    • Views: 218
    01-25-2017, 05:38 PM Go to last post
  15. Help responding to a journal reviewer on reliability of scale

    Hey all, My team has been working on a paper that looks at the psychometric properties of an 8-item scale. This scale has items that we pulled...

    Started by jdark7‎, 01-21-2017 02:59 PM
    • Replies: 4
    • Views: 408
    01-25-2017, 02:18 AM Go to last post
  16. Repeated measures analysis with ordinal data

    Hello, I have data on subjects' ratings of 5 potential side effects (rated as: none, mild, moderate, considerable, strong) following three...

    Started by Siobh‎, 01-14-2017 12:01 PM
    intervention, likert-type scale, repeated measures, within-subjects
    • Replies: 1
    • Views: 394
    01-19-2017, 08:35 AM Go to last post
  17. Construction und reliability of scales

    Hello, I'm checking a moderated mediation with two mediators (altruism & egoism). I've constructed two scales (altruismus with 8 items and egoism...

    Started by yologer‎, 08-07-2016 07:06 AM
    • Replies: 1
    • Views: 484
    01-18-2017, 02:51 AM Go to last post
  18. Repeated Measures Anova question

    Thanks so much for taking a minute to read this! I am planning a dissertation and IF could get some feedback as to if I am on the right track,...

    Started by sr1226‎, 01-14-2017 11:02 AM
    anova, nominal data analysis, repeated measures anova, within subjects
    • Replies: 1
    • Views: 310
    01-16-2017, 12:36 PM Go to last post
  19. Exploratory factor analysis with forced number of factors?

    Dear colleagues, SPSS has an option for exploratory factor analysis where you can choose the number of factors before performing the analysis. In...

    Started by Anthony_1000‎, 01-11-2017 03:02 AM
    • Replies: 3
    • Views: 329
    01-13-2017, 12:32 PM Go to last post
  20. Compare differences between exp. and contr. of two groups

    Hi! I already used lots of search engines without finding an answer to my problem. I am testing two methods for manipulating religious belief....

    Started by rothmann1510‎, 01-10-2017 08:20 AM
    anova, interaction, interaction effects, two factor anova, two factors
    • Replies: 5
    • Views: 381
    01-12-2017, 03:45 AM Go to last post
  21. [SPSS-ANOVA] Should I use a mixed ANOVA design?

    Good evening I am writing to inquire how I should tackle the data for my dissertation research paper. I have two main problems that I will point...

    Started by AnaC‎, 01-08-2017 02:34 PM
    anova, theory of mind
    • Replies: 1
    • Views: 291
    01-09-2017, 03:41 AM Go to last post
  22. Interactions in count data

    Hi all, I've run a multi-tasking behavioural paradigm with volunteers grouped according to 2 characteristics 1) Age (young, mid) 2) Risk (high,...

    Started by Lancaster‎, 01-05-2017 05:35 AM
    • Replies: 0
    • Views: 294
    01-05-2017, 05:35 AM Go to last post
  23. Statistical analysis

    Hi all. I am doing an experiment that looking at relationships between mental imagery and mental disorders, mental disorders and self-regulation...

    Started by Armaghgeddon‎, 01-04-2017 11:40 AM
    • Replies: 2
    • Views: 329
    01-04-2017, 02:10 PM Go to last post
  24. Exploratory factor analysis on grades

    Hi! I'm doing an analysis on a set of 90 test results in 7 different tasks (90 students were given a set of 7 tasks). The results were not given...

    Started by Danrob‎, 01-02-2017 03:28 AM
    • Replies: 0
    • Views: 304
    01-02-2017, 03:28 AM Go to last post
  25. Second language acquisition data analysis

    Hi there, I am writing a research paper about second language acquisition and I would like to confirm my data analysis approach since I am not an...

    Started by bgarcia‎, 01-01-2017 08:33 AM
    • Replies: 0
    • Views: 282
    01-01-2017, 08:33 AM Go to last post
  26. Factor analysis on dichotomously scored items

    Hi have a set of 30 dichotomously scored items (scored 0 and 1) and want to do exploratory factor analysis on them. I have heard that performing EFA...

    Started by Anthony_1000‎, 12-29-2016 11:14 AM
    • Replies: 4
    • Views: 406
    12-31-2016, 01:58 PM Go to last post
  27. Calculating and Reporting Effect Size for Fisher's Exact Test?

    Hi everyone, I am writing a paper for publication. This is my first time doing a survey study, and also my first time working with categorical...

    Started by nporot‎, 12-28-2016 01:42 PM
    effect size, fisher's exact test, odds ratios, phi
    • Replies: 2
    • Views: 489
    12-30-2016, 11:35 AM Go to last post
  28. Does this study design look okay? Thanks :)

    I want to look at: If a school-based CBT intervention has an impact on young people's levels of anxiety and/or depression. I have questionnaires...

    Started by cmms‎, 12-28-2016 06:15 PM
    • Replies: 3
    • Views: 388
    12-29-2016, 06:04 PM Go to last post
  29. Nested within-subjects repeated measures stats?

    Hi people, I am having some confusion over how to carry out the stats for my experiment. In the experiment, there is two condition of teaching...

    Started by sgjustino‎, 12-19-2016 09:41 AM
    linear mixed model, nested, repeated measure, within subject
    • Replies: 2
    • Views: 563
    12-26-2016, 10:13 AM Go to last post
  30. Sample size

    Dear colleagues, I have a question that has become a bone of contention among my colleagues. Id be very grateful if you commented. What are...

    Started by Anthony_1000‎, 12-26-2016 09:28 AM
    • Replies: 0
    • Views: 333
    12-26-2016, 09:28 AM Go to last post
  31. Choosing the right statistical procedure - GLM repeated measure?

    Hello, I would appreciate any help to determine the right statistical method to analyze the next research question. The research population is...

    Started by Netti‎, 12-23-2016 04:11 PM
    glm repeated measure
    • Replies: 2
    • Views: 469
    12-24-2016, 09:26 PM Go to last post
  32. Query about study design

    Dear All, I am currently working on designing a research project for my postgraduate psychology qualification and I am not quite sure if I am on the...

    Started by zammitr‎, 12-23-2016 07:32 AM
    • Replies: 0
    • Views: 304
    12-23-2016, 07:32 AM Go to last post
  33. Which method shall I use?

    Hello, I am working on my first paper and I feel quite lost with the statistical method. Hope you can help me! I am comparing two samples from...

    Started by AJLRB‎, 12-08-2016 03:43 AM
    contingecy table
    • Replies: 4
    • Views: 750
    12-12-2016, 10:04 AM Go to last post
  34. Question Which ANOVA?

    Hi there :) I am struggling to determine which would be the most appropriate ANOVA analysis to use for some work I am doing. I have 3...

    Started by roseberry‎, 12-10-2016 07:39 AM
    anova, contrasts, independent groups, one way anova, spss anova
    • Replies: 1
    • Views: 460
    12-10-2016, 06:00 PM Go to last post
  35. Dissertation Trouble Using Correlations

    Hello. I am having a problem with my dissertation and I was wondering if anyone is kind enough to help me out. I am running a within-subjects...

    Started by mulhaq‎, 12-08-2016 05:39 AM
    correlations, linear effects, normal distributions, psychology experiment, reliability
    • Replies: 1
    • Views: 319
    12-08-2016, 07:21 AM Go to last post
  36. Correlation & Regression

    I have used regression to explain a dependent variable with a number of independent variables. The finding is that the variables with highest betas...

    Started by Anthony_1000‎, 12-03-2016 03:29 AM
    • Replies: 5
    • Views: 563
    12-07-2016, 03:53 AM Go to last post
  37. Nonparametric equivalent to a factorial ANOVA?

    Hi, Does anyone know of a nonparametric equivalent to a factorial ANOVA? I can't run a parametric test because I have violations of normality of...

    Started by coffee123‎, 09-21-2016 12:03 AM
    • Replies: 12
    • Views: 1,135
    12-07-2016, 03:38 AM Go to last post
  38. Smile moderated mediation

    Hi everyone, I am currently analysing a moderated mediation model. The long and short of it is that the analyses showed that the overall moderated...

    Started by timneill‎, 03-26-2014 11:46 PM
    • Replies: 10
    • Views: 3,969
    12-07-2016, 03:29 AM Go to last post
  39. Hypothesis Testing and Pearson's Homework Help PLS

    I have 2 questions I need help with: 1.You own the company that makes the cheap store brand wine for Walmart (Chateau Trailerparc). You think most...

    Started by portcity‎, 12-04-2016 02:42 PM
    • Replies: 0
    • Views: 324
    12-04-2016, 02:42 PM Go to last post
  40. Outliers in categorical data?

    Hello! I am working on a pre-analysis plan and have to specify what I am going to do with outliers. I have two categorical variables (5 levels and...

    Started by cynnetje‎, 12-02-2016 05:45 PM
    boxplot, categorical, chi-square, outlier
    • Replies: 2
    • Views: 328
    12-02-2016, 06:41 PM Go to last post
  41. How to include hanging control in ANOVA analysis on SPSS

    Hi all, I'm hoping to get some advice on how to run ANOVAs in SPSS for a design that includes a hanging control group. I'm interested in how...

    Started by tantsevat‎, 04-13-2015 01:45 PM
    3 x 3 + 1, anova, hanging control, spss
    • Replies: 2
    • Views: 1,146
    11-30-2016, 10:53 AM Go to last post
  42. 2x2x3 Anova, what will it tell me?

    Hi - I would like to compare the means of a DV (emotional intelligence) between three different variables, those being; 1) Gender (are the...

    Started by TruroJP‎, 11-28-2016 12:00 PM
    2x2 anova, anova, compare 2 means, statistical analysis
    • Replies: 2
    • Views: 396
    11-29-2016, 02:58 PM Go to last post
  43. Which analysis to choose? Urgent

    Hi, any help is greatly appreciated. I have data from the same children at ages 4, 7 and 11 for a variable (self-regulation) created from a...

    Started by TruroJP‎, 11-27-2016 05:31 PM
    analysis help, anova, compare 2 means, longitudinal analysis, stata 14
    • Replies: 5
    • Views: 515
    11-27-2016, 09:44 PM Go to last post
  44. effect size calculations for longitudinal mixed effects models

    I have been working with a financial database and recently got comments from a reviewer on my manuscript. The comments stemmed from how I calculated...

    Started by the42up‎, 11-25-2016 01:07 PM
    • Replies: 0
    • Views: 415
    11-25-2016, 01:07 PM Go to last post
  45. How to analyze repeated measures game data with changing difficulty levels?

    Participants: 19 children participated in the study. Children were grouped in groups G1 (N=8) and group G2 (N=11) based on their behaviors. A...

    Started by skirshna‎, 11-23-2016 07:23 PM
    different outcomes, hierarchical, mixed model, repeated ancova, repeated measures design
    • Replies: 2
    • Views: 461
    11-23-2016, 10:33 PM Go to last post
  46. Repeated measures when pre/post group is not independent or dependent

    Hello, I am running a pre-post study using several different instruments (e.g. 1-5 Likert scale instruments which produce a final score). It is...

    Started by lindsayh1‎, 11-22-2016 11:28 AM
    repeated measure, t-test two-sample
    • Replies: 2
    • Views: 419
    11-23-2016, 08:48 AM Go to last post
  47. Limits for missing values in the multiple imputation method

    I have an understanding question and I need help. I have a record with many missing values. I now wanted to use the multipile Imputation method to...

    Started by Syntax6‎, 11-17-2016 10:49 AM
    missing values, multiple imputation, psycology
    • Replies: 6
    • Views: 659
    11-19-2016, 07:22 AM Go to last post
  48. IV = 2 levels, DV = rank list from 1-8. Not sure how to explore variability between

    Greetings, Im new to this forum and excited about enhancing my stats skills. Im interested in exploring if there is a difference between two...

    Started by Luxor‎, 11-14-2016 09:38 PM
    • Replies: 0
    • Views: 416
    11-14-2016, 09:38 PM Go to last post
  49. Mixed-effects modelling of response data (multiple stimuli&subjects) in Matlab

    I have preference ratings (integers from 1-to-7) for k=80 stimuli, obtained from N=30 subjects. I want to use a mixed-effects model to test how well...

    Started by wildetudor‎, 11-08-2016 06:24 PM
    • Replies: 3
    • Views: 519
    11-14-2016, 01:05 PM Go to last post
  50. ?? 2 way ANOVA with both Between and a 2 way ANOVA with one between and one within ??

    Hello all, Can someone please explain how this works, as my text book just BRIEFLY touched on it. Lets say I want to run two studies. ...

    Started by allie_moore‎, 11-10-2016 04:57 PM
    • Replies: 2
    • Views: 472
    11-12-2016, 02:32 PM Go to last post
  51. Number of responses above a threshold after considering survey error

    I am interested in how many people in my survey of people earn between $50,000 and $54,999. I construct a paper survey which asks for income in...

    Started by jakeharry‎, 11-10-2016 12:30 PM
    income, survey, threshold, uncertainty
    • Replies: 3
    • Views: 457
    11-11-2016, 08:47 AM Go to last post
  52. Repeated Measures with 2 categorical variables and one continuous variable

    Hello TalkStats members, Ok I have searched the web and this site and I feel like I am still lost on my problem. I have six items where...

    Started by tqh‎, 11-07-2016 04:28 PM
    • Replies: 0
    • Views: 390
    11-07-2016, 04:28 PM Go to last post
  53. Can someone show me a 2x3 design, with AB interaction & main effect of A and B?

    Can someone show me a 2(A)x3(B) design, with AB interaction & main effect of A and B? In terms of a graph and an explanation of the graph ? My...

    Started by allie_moore‎, 11-03-2016 12:47 AM
    • Replies: 2
    • Views: 591
    11-06-2016, 03:13 AM Go to last post
  54. Prediction from predicted/residual values compare to standard error of the estimate

    Hello. I have to indicate how good prediction is, by looking at the actual, predicted, and residual values, compare to the standard error of the...

    Started by yumi‎, 11-04-2016 12:32 AM
    • Replies: 1
    • Views: 442
    11-05-2016, 06:53 AM Go to last post
  55. Factor analysis

    Dear all, I have a question concerning a factor analysis run in Stata (principal factor, no rotation), based on 12 variables - my experience with...

    Started by dnh‎, 11-01-2016 07:10 AM
    • Replies: 0
    • Views: 457
    11-01-2016, 07:10 AM Go to last post
  56. Repeated ANOVA using comparable starting values?

    Hello, I have a weird problem that I've never encountered before. I'm hoping someone else might provide their insight. I am conducted a study...

    Started by PillBaxton‎, 10-25-2016 11:55 AM
    repe
    • Replies: 1
    • Views: 530
    10-27-2016, 03:48 AM Go to last post
  57. Need help: Running a One-way FIXED effects Between Subject, ANOVA in SPSS.

    I am having to run a One-way FIXED effects Between Subject, ANOVA in SPSS, and I am STUCK! :( Anyone care to help? I will explain the best I can...

    Started by allie_moore‎, 10-25-2016 08:36 PM
    • Replies: 1
    • Views: 466
    10-26-2016, 07:55 AM Go to last post
  58. Composite reliability vs Cronbach's alpha

    Hello Wondering if someone could clarify I'm developing a new measure with 10 constructs. Each construct has between 4 - 6 items. I've...

    Started by anon2000‎, 09-09-2014 04:02 AM
    2 Pages
    1 2
    composite reliability, cronbach's alpha, questionnaire development, reliability
    • Replies: 21
    • Views: 21,078
    10-24-2016, 05:47 PM Go to last post
  59. Structural Equiation Modeling - Likert variable and fit indices

    Hello everybody! Thank you in advance for reading, and for trying to help! To put it briefly.. I am working with Structural Equiation Modeling...

    Started by SFArtamendi‎, 10-24-2016 11:13 AM
    likert, rmsea, sem
    • Replies: 1
    • Views: 420
    10-24-2016, 03:07 PM Go to last post
  60. HELP with data collection methods and data analysis in quantitative research

    I am doing a research proposal on the effect of a drug on haemorrhage growth in traumatic brain injury. what level of data measurement will i use to...

    Started by murrayk‎, 10-21-2016 09:59 PM
    • Replies: 1
    • Views: 464
    10-22-2016, 01:49 AM Go to last post

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