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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: 27,689
    11-10-2005, 12:21 AM Go to last post
  1. 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: 128
    06-24-2017, 08:59 PM Go to last post
  2. 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: 546
    06-24-2017, 12:55 AM Go to last post
  3. 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: 107
    06-23-2017, 04:36 PM Go to last post
  4. 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: 210
    06-14-2017, 01:16 PM Go to last post
  5. 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: 150
    06-14-2017, 09:45 AM Go to last post
  6. 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: 187
    06-13-2017, 04:24 AM Go to last post
  7. 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: 135
    06-11-2017, 03:38 PM Go to last post
  8. 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: 115
    06-11-2017, 03:19 PM Go to last post
  9. Software to perform conjoint analysis

    What software supports conjoint analysis?

    Started by Meenakshi Tiwari‎, 06-11-2017 05:28 AM
    • Replies: 0
    • Views: 119
    06-11-2017, 05:28 AM Go to last post
  10. 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: 179
    06-09-2017, 06:28 AM Go to last post
  11. 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: 262
    06-07-2017, 05:07 AM Go to last post
  12. 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: 247
    06-04-2017, 05:05 PM Go to last post
  13. 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: 373
    06-02-2017, 10:39 AM Go to last post
  14. 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: 1,000
    06-02-2017, 10:39 AM Go to last post
  15. 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: 339
    06-02-2017, 02:32 AM Go to last post
  16. 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: 415
    06-02-2017, 02:19 AM Go to last post
  17. 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: 268
    06-02-2017, 02:07 AM Go to last post
  18. 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: 356
    06-02-2017, 02:03 AM Go to last post
  19. 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: 344
    06-02-2017, 01:56 AM Go to last post
  20. 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: 374
    06-02-2017, 01:52 AM Go to last post
  21. 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: 206
    05-31-2017, 10:58 AM Go to last post
  22. 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
    anova
    • Replies: 3
    • Views: 292
    05-30-2017, 09:52 PM Go to last post
  23. 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: 197
    05-30-2017, 04:41 AM Go to last post
  24. 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: 246
    05-28-2017, 08:30 AM Go to last post
  25. 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: 421
    05-24-2017, 03:41 PM Go to last post
  26. 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: 616
    05-16-2017, 11:05 PM Go to last post
  27. 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: 300
    05-11-2017, 05:35 PM Go to last post
  28. 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: 274
    05-10-2017, 03:54 PM Go to last post
  29. 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: 318
    05-08-2017, 02:30 PM Go to last post
  30. 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: 653
    05-08-2017, 08:25 AM Go to last post
  31. 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: 270
    05-08-2017, 02:02 AM Go to last post
  32. 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: 676
    05-08-2017, 01:57 AM Go to last post
  33. 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: 380
    05-08-2017, 01:56 AM Go to last post
  34. Help in analyzing 3 raters' data in 2-way ANOVA

    Greetings, I completed a small pilot study recently that investigated a new therapy for music performance anxiety. My N=7. One hypothesis I...

    Started by dimazzadj‎, 05-07-2017 08:40 PM
    • Replies: 2
    • Views: 263
    05-08-2017, 01:55 AM Go to last post
  35. Case Study on an PROPOSED EXPERIMENT (HELP)

    CAN SOMEONE PLEASE HELP WITH THE FOLLOWING QUESTIONS??? I am not familiar with some of the more inherent design limitations and improvements? ...

    Started by letsgetstatistic‎, 05-06-2017 07:14 AM
    • Replies: 0
    • Views: 370
    05-06-2017, 07:14 AM Go to last post
  36. Question MANOVA or something else?

    Hello everyone! Please excuse my english, it is not my first language, so if something is unclear, let me know :) For my master thesis, I'm...

    Started by Panzerknacker‎, 05-02-2017 06:57 AM
    2 Pages
    1 2
    cps, manova, ttct
    • Replies: 15
    • Views: 946
    05-05-2017, 05:55 AM Go to last post
  37. Unequal group sized in repeated measures ANOVA?

    I know that a major assumption of Two-way ANOVAs are that the group sizes are equal. If I am doing a Repeated Measures ANVOA with a 2...

    Started by LucidMind‎, 05-04-2017 01:49 PM
    • Replies: 0
    • Views: 310
    05-04-2017, 01:49 PM Go to last post
  38. Need help interpreting these studies correctly

    How valid are the conclusions being drawn in the following (admittedly sketchy, they are just blogs) sources?:...

    Started by Anarcha‎, 05-03-2017 06:18 PM
    • Replies: 2
    • Views: 348
    05-04-2017, 08:25 AM Go to last post
  39. Analysis of parental leave

    Hello, in my bachelor thesis i have to use regression analysis, i used a questionnaire to collect the data. Dependent variable is the time that...

    Started by 2be‎, 04-28-2017 04:00 PM
    adjusting data, dependent variable, quantification, regression analysis
    • Replies: 1
    • Views: 419
    04-28-2017, 04:17 PM Go to last post
  40. What analysis to compare group to genpop based solely on percentile scores

    Hi guys, I'm completing my honors year in Psychology through an Australian University. I'm just about to do my results section for my thesis and need...

    Started by mkop10‎, 04-26-2017 09:45 PM
    • Replies: 1
    • Views: 336
    04-27-2017, 10:29 AM Go to last post
  41. How do I analyse this limited data? It is probably obvious but I have gone blank

    I have a job interview where I need to present the main findings of some data but I am struggling to perform a data analysis on it. They have only...

    Started by GraduateL‎, 04-23-2017 03:47 PM
    • Replies: 3
    • Views: 359
    04-25-2017, 03:45 AM Go to last post
  42. Testing between scores of three groups

    17 teachers answered a survey of 27 questions for three Groups of students (below average, average, above average) The answers to the questions are...

    Started by Rolsha‎, 04-17-2017 10:10 PM
    • Replies: 6
    • Views: 529
    04-19-2017, 04:29 AM Go to last post
  43. Descriptive Statistics and Regression Help

    Hi all, I need help writing some results for my report. I am very rusty with statistics as I've taken a long break from it all :( safe to say I...

    Started by crazycatlady‎, 04-15-2017 06:30 PM
    • Replies: 0
    • Views: 373
    04-15-2017, 06:30 PM Go to last post
  44. Correlation Analysis on Ordinal and Continuous Data (Spearman's?)

    My study is looking at the effects of working memory training on smoking related behaviour. We basically trained half participants with a dual n back...

    Started by olihowker‎, 04-14-2017 08:16 AM
    • Replies: 0
    • Views: 298
    04-14-2017, 08:16 AM Go to last post
  45. Question ANOVA What ANOVA should I use?

    I'm writing a research proposal and I'm not sure what statitical analysis I should use. I was thinking about using ANOVA, but I don't know what ANOVA...

    Started by kphill‎, 04-13-2017 04:41 PM
    • Replies: 7
    • Views: 513
    04-13-2017, 08:36 PM Go to last post
  46. Question I don't know what statistical analysis to use

    Hello, I'm writing a research proposal for my psy 400 class and I'm not sure what statistical analysis to use for my expected results. The purpose of...

    Started by kphill‎, 04-13-2017 04:13 PM
    • Replies: 0
    • Views: 293
    04-13-2017, 04:13 PM Go to last post
  47. warning: "covariance matrix of latent variables is not positive definite"

    Hi all, I ran a 5 factor CFA model, and I got a warning saying that the covariance matrix of my latent variables is not positive definite. I...

    Started by myautumn28‎, 04-13-2017 12:17 PM
    • Replies: 2
    • Views: 363
    04-13-2017, 03:12 PM Go to last post
  48. Metaanalysis Tanner-stages Probit/Logit/...

    Hello, I am running a metaanalysis about the ages of girls and boys in the Tanner-stages of puberty (https://en.wikipedia.org/wiki/Tanner_scale)....

    Started by Filip2017‎, 04-13-2017 01:41 PM
    • Replies: 0
    • Views: 327
    04-13-2017, 01:41 PM Go to last post
  49. Question Finding an overall level of Motivation (from a motivational questionnaire)

    Hi, i was hoping i could get some help concerning the statistics of factors in a Motivational Questionnaire. Long story short, in the company i...

    Started by TypicalChristy‎, 04-13-2017 10:01 AM
    absolute values, factors, motivation, overall motivation, statistics
    • Replies: 0
    • Views: 234
    04-13-2017, 10:01 AM Go to last post
  50. Tests for B mediating or moderating A->C, w/ path analysis?

    I'm hoping to use path analysis to learn more about the relationship between three individual difference variables. I'm new to Mplus and to path...

    Started by Parker5901‎, 04-12-2017 09:58 PM
    • Replies: 0
    • Views: 196
    04-12-2017, 09:58 PM Go to last post
  51. Smile Multiple IVs and DVs- which test should be used?

    Hey guys! I've been provided with a data set and asked to do two analyses based on the following study aims: 1. Look at associations between the...

    Started by psychstudent17‎, 04-12-2017 03:04 AM
    • Replies: 1
    • Views: 346
    04-12-2017, 08:25 AM Go to last post
  52. Determining sample size from confidence interval and significance level

    Hi everyone, I am studying a university level stats course at the moment and I have been given some excerises to take home that I am struggling...

    Started by sophies27‎, 04-08-2017 03:11 PM
    sample size, sample size calculation, sample size determination
    • Replies: 1
    • Views: 411
    04-09-2017, 04:31 PM Go to last post
  53. Determining If Difference Score Was Obtained By Chance

    For example lets say a counselor has been using a depression test on clients at the start of treatment and again 6 months later. When the counselor...

    Started by Stats Mang‎, 04-07-2017 11:31 AM
    alpha, difference scores, z score
    • Replies: 2
    • Views: 445
    04-07-2017, 08:36 PM Go to last post
  54. Manova?

    Hi, I am doing data analisis for my research and I kinda got stuck with it, I have seached alot and I am getting inconsistent informations if it...

    Started by Karobed‎, 04-06-2017 08:44 AM
    manova
    • Replies: 0
    • Views: 218
    04-06-2017, 08:44 AM Go to last post
  55. SEM Mediation using bootstrapping approach

    Hi, I am performing mediation analysis using structural equation modelling (I'm using the lavaan package in 'R'). I am using the bootstrapping...

    Started by EmmaL‎, 04-03-2017 01:20 PM
    bootstrapping, indirect effects, mediation, structural equation model
    • Replies: 4
    • Views: 605
    04-05-2017, 08:53 AM Go to last post
  56. POSAC - maximum possible amount of variable and how to deal with it

    Question about Partial Order Scalogram Analysis by Coordinates (POSAC) - solved right after I posted this thread. Got paper by S. Shye how to deal...

    Started by Liliana‎, 04-05-2017 06:20 AM
    • Replies: 1
    • Views: 380
    04-05-2017, 06:30 AM Go to last post
  57. Family Relationship version of Factor analysis for Japanese Groups

    I am trying to create a scale to measure "comportment" (bodily manners, gyougi) among Japanese and I am doing an exploratory factor analysis...

    Started by timtak‎, 04-03-2017 11:58 PM
    • Replies: 0
    • Views: 389
    04-03-2017, 11:58 PM Go to last post
  58. Lack of homogeneity of Variance in two-way ANOVA

    Hi, I am currently analyzing my data in SPSS. Since I am testing the effect of two independent variables on a dependent one, I was planning on...

    Started by Klaro26‎, 03-29-2017 07:56 AM
    homogeneity, levene's, significance, spss anova
    • Replies: 4
    • Views: 780
    04-02-2017, 12:03 AM Go to last post
  59. Signal detection theory - d' and C - unexpected results

    Hi I've conducted a 2-alternative forced-choice experiment whereby participants were shown images, and then in the test phase had to choose which...

    Started by iwsmuir105‎, 03-30-2017 12:51 PM
    • Replies: 1
    • Views: 442
    04-01-2017, 11:34 PM Go to last post
  60. Correction for attenuation: WAIS-IV and test X

    Hi, I have been asked to do a correction for attenuation of the context between a specific test (Lets call it test X) and a specific part-test of...

    Started by UnnieE‎, 03-30-2017 09:48 AM
    attenuation, reliability, wais-iv
    • Replies: 7
    • Views: 708
    03-30-2017, 03:08 PM Go to last post

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