1. 10-14-2010
Views:
37,949
Page 17 of 49 First 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 ... Last
Threads 961 to 1020 of 2890

# 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: 24,468
11-10-2005, 12:21 AM
1. ### About MANOVA (assumptions violated)

Hi everyone, I am doing a research on demographical factors (e.g. family income, step family, gender etc.) and aggressiveness/delinquency of...

• Replies: 5
• Views: 1,501
09-24-2013, 02:43 AM
2. ### Research stats & power analysis

Hi please could someone help as I am very confused and I'm sure the answer is very straight forwaard. I am doing a study looking at beliefs about...

• Replies: 1
• Views: 858
09-24-2013, 01:09 AM

Need help with this question ASAP. It is very important. Fiona takes part in two different choice-reaction time tasks as part of her research...

• Replies: 1
• Views: 670
AmJ
09-23-2013, 06:12 AM
4. ### Singular correlation matrix problem

I'm using principal components to reduce problem dimension. I obtain correlation matrix whose determinant is about 10^(-13) as the result of ...

• Replies: 5
• Views: 15,534
09-20-2013, 12:46 AM
5. ### Interaction between two causally related IVs

I am interested in studying an interaction effect of two variables that have been shown to have a causal relationship by previous research. I am...

• Replies: 2
• Views: 899
09-16-2013, 12:13 PM
6. ### Help! Repeated Measures ANOVA SPSS

Context of study: 32 participants completed a self-esteem questionnaire (scores can go from 0-40). Then they are scanned in a fMRI so we can see...

• Replies: 2
• Views: 1,111
09-14-2013, 01:09 PM
7. ### Question about model validation.

I'm working on a problem on my own (not for class or work) and I just wanted to get some outside opinions before I progress further. As far as my...

• Replies: 0
• Views: 793
09-12-2013, 06:14 PM
8. ### Using T tests in a multimediational model

I have used Andrew Hayes PROCESS to construct a multimediational model. Does anyone know if it is possible to run T tests to compare the strengths...

• Replies: 0
• Views: 612
09-11-2013, 01:32 PM
9. ### quasi experimental design

HI, I/\'m doing a thesis on non-compliance in procurement looking at or trying to show that noncompliance is due to psychological and economical...

• Replies: 2
• Views: 855
09-10-2013, 11:15 AM
10. ### Outcome is Ranking Variable--What is the best test?

Hi all, I am working with a dataset in which the outcome is a rank or an ordered variable. Essentially, participants are given some information...

• Replies: 1
• Views: 705
09-09-2013, 03:17 PM
11. ### help

hello im not really sure if im on the right thread but anyways i really need ur help, i am conducting a study about knowledge attitude and practice...

• Replies: 2
• Views: 686
09-07-2013, 09:02 AM
12. ### psi matrix warning--is my cure worse than the malady?

Hi all- I've been struggling with a psi matrix warning in my multiple indicator growth model for a few weeks. I found a tentative solution this...

• Replies: 0
• Views: 608
09-07-2013, 07:56 AM
13. ### I need help with Inter-Rater agreement

I'm developing a scale and my items were already checked by a group of 4 judges. They gave a dichotomica response (yes, leave the item or no,...

• Replies: 4
• Views: 1,114
09-06-2013, 09:46 AM
14. ### Is Mann Whitney test appropriate when N=1?

Hello everyone, Im working on my phd (psychology), finished collecting data, now dealing with their analysis. I have a question regarding the...

• Replies: 5
• Views: 1,025
09-04-2013, 09:45 AM
15. ### Ranges in survey questions

I am working on some survey research. One of the questions is something like... This is how the colleague phrased the question but I know...

• Replies: 12
• Views: 1,776
09-02-2013, 05:45 PM
16. ### Paired t-Test: 7 means which do I compare?

Hi, I've been running research trying to ascertain if retroactive priming is possible facilitated by Extra Sensory Perception. It is based on a...

• Replies: 0
• Views: 785
08-31-2013, 02:29 PM
17. ### Comparing two tests

I was hoping someone could give me some advice on a stats homework assignment. Most of it is pretty easy but the last question (even though it’s...

• Replies: 0
• Views: 604
08-30-2013, 09:24 AM
18. ### Do I have a Type 1 or Type 2 error here?

Ok, so.. I am testing the effectiveness of an intervention on work outcome variables, using MANOVAs. For one of my MANOVAs I have a significant...

• Replies: 8
• Views: 1,060
08-28-2013, 03:51 PM
19. ### Testing Group Equivalence

Hi, I am doing an intervention study for my thesis. I need to check that the control groups and experimental groups are equal at the outset on...

• Replies: 3
• Views: 780
08-28-2013, 03:40 PM
20. ### Help with comparing stanines across groups

I am trying to put together some stats on a simple questionnaire (10 items) administered to approx 200 respondents from 5 different organisations....

• Replies: 1
• Views: 694
08-28-2013, 09:01 AM
21. ### Choosing Scales and determing if difference between questions are significant

Hi I'm pilot testing a survey on innovation. Survey objective is to find out whether the factors affecting innovation are present in a specific work...

• Replies: 2
• Views: 706
08-28-2013, 01:18 AM
22. ### data transformation- varied result using log10- better method?

To transform or not to transform and how to transform data? Hi, My study: - 2 groups- 1. Not allowed to work; 2. Allowed to work (control) -...

• Replies: 2
• Views: 1,297
08-27-2013, 03:42 PM
23. ### Quick question: When running an Independent Samples MANOVA...

Where are the univariate output tables?!! I cant see any in SPSS (I am using Syntax). I had univariate outputs for my mixed MANOVAs, but I have...

• Replies: 7
• Views: 862
08-27-2013, 08:07 AM
24. ### need help with sample size

Hi all-How do I calculate sample size for a one group repeated measures? I want to know how many subjects I need for a study looking at whether a...

• Replies: 0
• Views: 719
08-27-2013, 01:01 AM
25. ### Help needed with analyzing sensitivity to changes in Musical sounds

Thank you so much for your advice in advance, I owe you a pint if you are in London! :) I am trying to analyze whether kids with autism are more...

• Replies: 1
• Views: 599
08-26-2013, 11:58 AM
26. ### Type I and type II errors in multiple factor ANOVA

Hello, I wonder if someone can explain to me what happens with type I and type II errors as you add more factors to ANOVA design, specifically to...

• Replies: 0
• Views: 701
08-26-2013, 08:17 AM
27. ### The importance of 'breaching zero' in a bootstrapping mediation Analysis

Dear all, I am using mediation analaysis as part of my research and I am bit confused about the idea of 'breaching zero' in the confidence...

• Replies: 2
• Views: 1,218
kaz
08-25-2013, 11:22 AM
28. ### is it possible to convert a pass or fail data into quantifiable data for thesis?

our thesis is about personality factors affecting performance. and their performance is evaluated to either pass or fail only since its for a...

• Replies: 9
• Views: 1,788
08-24-2013, 10:29 AM
29. ### T-test vs nonparametric for likert scale (very small sample size)

Hi everyone, I'm in the process of completing my masters thesis, and while I did my share of psych stats in my undergrad it's been YEARS and I'm a...

• Replies: 1
• Views: 1,130
08-24-2013, 10:00 AM
30. ### how to calculate for unbalanced panel data Lagrange-multiplier test

Hi, I have unbalanced panel data. Using SAS, the null hypthesis of Hausman Test was not rejected (means the random effects model is better than...

• Replies: 2
• Views: 3,325
08-23-2013, 12:00 PM
31. ### Data transformation

Hi all, I have used Fraley's ECR-RS with two subscales, one on attachment-related anxiety and the other on attachment-related avoidance to collect...

• Replies: 3
• Views: 1,201
08-22-2013, 06:40 PM
32. ### Urgently need help with data analysis

Hey folks, i really am desperate for help with this, since I have to present my results at a conference in less than two weeks. I am a...

• Replies: 6
• Views: 1,141
08-22-2013, 09:42 AM
33. ### ANOVA question.. no interaction but significant main effect

Okay.. here it goes.. i have two variables (A and B). A has 4 levels (A1,A2,A3,A4) B has 6 levels (B1, B2, B3, B4, B5, B6) In order to answer my...

• Replies: 2
• Views: 910
08-20-2013, 05:26 PM
34. ### nonparametric tests to check the effect of independent variable on dependent variable

hi im hoping that some one might help me. i want to check the effect of metacognitive skills (MCS) on students presentation and report writing...

• Replies: 2
• Views: 1,067
08-18-2013, 05:25 PM
35. ### My supervisor got mad. I need help!

She read a draft of my results and I have a million and one things to correct. I am running mixed MANOVAs on my intervention study data. But...

• Replies: 11
• Views: 1,498
08-18-2013, 01:41 PM
36. ### Repeated Measures ANOVA : Intervention and control group problem

Hi everyone, this is my first post and like many others I am a master student writing my thesis. I ran an experiment to test the impact of left...

• Replies: 1
• Views: 1,335
08-18-2013, 11:40 AM
37. ### Likert scale with categories - chart to illustrate results

Ho there, I am currently analyzing a Likert scale questionnaire (5 points) of 28 items. The items of the questionnaire are grouped into several...

• Replies: 0
• Views: 1,149
08-18-2013, 03:30 AM
38. ### ANOVA and regression - "the same thing" but different sample size requirements?

It is often said that ANOVA and regression are the same thing, and indeed the results are equivalent in the cases I've encountered thus far. So I...

• Replies: 1
• Views: 857
08-16-2013, 07:39 AM
39. ### Reporting statistics in results section

Hi, I'm writing the results section for an undergraduate report, and to my surprise, I haven't been able to find an answer to this ridiculously...

• Replies: 4
• Views: 896
08-16-2013, 03:51 AM
40. ### MANOVA output- What does this mean?

As I forgot to ask my supervisor yesterday. I have run a MANOVA on two DVs, and in the Multivariate Tests table it says that the main effects of...

• Replies: 3
• Views: 1,156
08-15-2013, 04:53 PM
41. ### nonparametric test for group differences?

Hello, I have a simple question. I am not too familiar with nonparametric tests. I want to see if there are group differences in book selection....

• Replies: 1
• Views: 594
08-15-2013, 04:58 AM
42. ### Testing difference between correlations using fishers exact test?

Hello everyone, I have a sample n= 92 where I am looking for relationships between characteristics (age, gender, religiosity, education) attitudes...

• Replies: 0
• Views: 763
08-14-2013, 01:26 PM
43. ### a method for calculating the proportional mediating effect

Dear All Hi I am Amir from Iran where we have no a well know psychologist especially in quantitative.I am not good in mediation. I used Preacher...

• Replies: 0
• Views: 1,023
08-14-2013, 08:34 AM
44. ### Standard Multiple Regression AND APA format write-up

Hi all, I was just wondering if anyone knew the correct APA format to write up the results of a standard multiple regression ran in SPSS. I have...

• Replies: 0
• Views: 1,960
08-14-2013, 03:47 AM
45. ### Statistical tests for a research study

Dear All, Firstly, I am an absolute novice with respect to quantitative statistical analysis and I need a little guidance and all help would be...

• Replies: 2
• Views: 1,221
08-13-2013, 02:08 PM
46. ### What correlation should I run?

I have two data sets from identical ordinal scales (Never, Rarely, Occasionally, Often, Very Often). What correlation should I run?

• Replies: 4
• Views: 860
08-13-2013, 12:05 PM
47. ### How to conduct mediation analysis with ordinal (probit) regressions

Hello everyone, I need to conduct a mediation analysis in which all the variables (i.e., the predictor, mediator, and outcome) are single items...

• Replies: 0
• Views: 1,713
08-12-2013, 04:17 PM
48. ### Interaction of two variables

Hello all, I am using the effort reward imbalance questionnaire in my thesis research. I am really struggling on how to calculate the imbalance of...

• Replies: 6
• Views: 1,015
kaz
08-10-2013, 07:51 AM
49. ### What's the best test - I'm totally confused

Hi Everybody, I could do with so help here. The main source of my problem is that I'm a little confused as to whether the members of my sample...

• Replies: 0
• Views: 679
08-10-2013, 05:06 AM
50. ### Wilcoxon test

I encountered the following stats in a results section: Wilcoxon test: z = 2.48, tied p < .007. What does "tied" mean?

• Replies: 8
• Views: 1,042
08-08-2013, 11:08 AM
51. ### Interaction and negative binomial regression analysis for criminological thesis

Hello, For my master's thesis I'm conducting a research on the influence of morality and self-control on self-reported delinquency. Morality is a...

• Replies: 6
• Views: 3,108
08-07-2013, 06:59 AM
52. ### Likert scale - categories

Hello there, For my doctoral thesis, I am analyzing a Likert scale questionnaire (5 points) of 28 items. The items of the questionnaire are...

• Replies: 0
• Views: 909
08-07-2013, 03:48 AM
53. ### Not sure how to present data - 3D scatter?

To help aid the reader of my thesis I want to present some perceptual data in a graph or table format, but am unsure what approach to use as I want...

• Replies: 4
• Views: 945
08-06-2013, 07:10 AM
54. ### Computing the reliability of a single item scale

I am using a single item measure of self-esteem for my study and have computing the scale reliabilities of my other measures using cronbach's alpha....

• Replies: 2
• Views: 1,425
08-06-2013, 07:04 AM
55. ### Quick question: When reporting on Cronbach's Alpha..

Do you round up? So if using 2 decimal places, would .885 be rounded up to .89, or do you report it as .88? Many thanks! Lolly

• Replies: 6
• Views: 5,854
08-05-2013, 04:51 PM
56. ### Literature review: comparing prevalences calculated from existing data. Chi-squared?

I am currently conducting a systematic review of the literature on the prevalence and topography of challenging behaviours (such as self-injury and...

• Replies: 0
• Views: 986
08-05-2013, 10:56 AM
57. ### Stuck on MANOVAs: How do I run a MIXED MANOVA in SPSS?

I have been searching everywhere online and I really can't find the answer! No uni lecture notes, youtube tutorials, nothing. I need to conduct a...

• Replies: 3
• Views: 5,323
08-05-2013, 03:02 AM

Page 17 of 49 First 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 ... Last

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Note: when sorting by date, 'descending order' will show the newest results first.