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# Forum: Psychology Statistics

Psychological statistics, quantitative psychology. Statistics in social sciences. Experimental design, data analysis.

Please provide us with some basic information before we can give useful advice: 1. purpose of the study / research question / hypotheses, if...

• Replies: 0
• Views: 28,927
11-10-2005, 12:21 AM
1. ### 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...

• Replies: 7
• Views: 223
07-22-2017, 05:59 PM
2. ### 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...

• Replies: 0
• Views: 152
07-20-2017, 08:15 PM
3. ### 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...

• Replies: 0
• Views: 164
07-18-2017, 08:51 AM
4. ### 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). ...

• Replies: 0
• Views: 183
07-13-2017, 05:45 AM
5. ### 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...

• Replies: 2
• Views: 219
07-11-2017, 05:19 PM
6. ### 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...

• Replies: 0
• Views: 131
07-10-2017, 04:29 PM
7. ### 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...

• Replies: 0
• Views: 110
07-10-2017, 01:59 AM
8. ### 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...

• Replies: 0
• Views: 114
07-09-2017, 05:17 PM
9. ### 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...

• Replies: 1
• Views: 196
06-29-2017, 08:39 PM
10. ### 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....

• Replies: 1
• Views: 219
06-24-2017, 08:59 PM
11. ### 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...

• Replies: 13
• Views: 680
06-24-2017, 12:55 AM
12. ### 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...

• Replies: 1
• Views: 164
06-23-2017, 04:36 PM
13. ### 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),...

• Replies: 1
• Views: 291
06-14-2017, 01:16 PM
14. ### 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...

• Replies: 1
• Views: 208
06-14-2017, 09:45 AM
15. ### 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...

• Replies: 0
• Views: 241
06-13-2017, 04:24 AM
16. ### 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...

• Replies: 0
• Views: 197
06-11-2017, 03:38 PM
17. ### 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...

• Replies: 0
• Views: 169
06-11-2017, 03:19 PM
18. ### Software to perform conjoint analysis

What software supports conjoint analysis?

• Replies: 0
• Views: 189
06-11-2017, 05:28 AM
19. ### 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...

• Replies: 3
• Views: 300
06-09-2017, 06:28 AM

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...

• Replies: 1
• Views: 371
06-07-2017, 05:07 AM
21. ### 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....

• Replies: 1
• Views: 315
06-04-2017, 05:05 PM
22. ### 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...

• Replies: 9
• Views: 494
06-02-2017, 10:39 AM

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...

• Replies: 2
• Views: 1,224
06-02-2017, 10:39 AM
24. ### 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...

• Replies: 1
• Views: 458
06-02-2017, 02:32 AM
25. ### 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...

• Replies: 1
• Views: 599
06-02-2017, 02:19 AM
26. ### 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...

• Replies: 1
• Views: 390
06-02-2017, 02:07 AM
27. ### 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...

• Replies: 1
• Views: 519
06-02-2017, 01:56 AM
28. ### 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...

• Replies: 1
• Views: 494
06-02-2017, 01:52 AM
29. ### 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...

• Replies: 0
• Views: 288
05-31-2017, 10:58 AM
30. ### 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...

• Replies: 3
• Views: 364
05-30-2017, 09:52 PM
31. ### 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...

• Replies: 0
• Views: 279
05-30-2017, 04:41 AM
32. ### 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...

• Replies: 0
• Views: 340
05-28-2017, 08:30 AM
33. ### 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,...

• Replies: 6
• Views: 577
05-24-2017, 03:41 PM
34. ### 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...

• Replies: 7
• Views: 814
05-16-2017, 11:05 PM
35. ### 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...

• Replies: 0
• Views: 401
05-10-2017, 03:54 PM
36. ### 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...

• Replies: 0
• Views: 447
05-08-2017, 02:30 PM
37. ### 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...

• Replies: 5
• Views: 818
05-08-2017, 08:25 AM
38. ### 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...

• Replies: 0
• Views: 410
05-08-2017, 02:02 AM
39. ### 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...

• Replies: 11
• Views: 859
05-08-2017, 01:57 AM
40. ### 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...

• Replies: 4
• Views: 566
05-08-2017, 01:56 AM
41. ### 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...

• Replies: 2
• Views: 406
05-08-2017, 01:55 AM
42. ### 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? ...

• Replies: 0
• Views: 512
05-06-2017, 07:14 AM
43. ### 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...

• Replies: 15
• Views: 1,233
05-05-2017, 05:55 AM
44. ### 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...

• Replies: 0
• Views: 436
05-04-2017, 01:49 PM
45. ### Need help interpreting these studies correctly

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

• Replies: 2
• Views: 452
05-04-2017, 08:25 AM
46. ### 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...

• Replies: 1
• Views: 578
04-28-2017, 04:17 PM
47. ### 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...

• Replies: 1
• Views: 442
04-27-2017, 10:29 AM
48. ### 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...

• Replies: 6
• Views: 679
04-19-2017, 04:29 AM
49. ### 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...

• Replies: 0
• Views: 509
04-15-2017, 06:30 PM
50. ### 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...

• Replies: 0
• Views: 372
04-14-2017, 08:16 AM
51. ### 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...

• Replies: 7
• Views: 644
04-13-2017, 08:36 PM
52. ### 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...

• Replies: 0
• Views: 441
04-13-2017, 04:13 PM
53. ### 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...

• Replies: 2
• Views: 505
04-13-2017, 03:12 PM
54. ### 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)....

• Replies: 0
• Views: 456
04-13-2017, 01:41 PM
55. ### 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...

• Replies: 0
• Views: 292
04-13-2017, 10:01 AM

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