Forum: Psychology Statistics

Hello everyone, My question is not about statistics but about online experimental design. I figured that people who know their way around...

Hello, I have a question about experimental designs that would like to get your opinions. Let's say I have a 3 -WAY full factorial design so far...

I am doing research on crime scene investigation activity. I have coded their physical actions into 1 of 14 activities (note taking, general search...

Hi, I have repeated measures from 2 time points and wish to use repeated measures ANOVA to model. However, my measures were derives from a...

Hello there, Just wondering if anyone can help me out. I have to do some reliability analysis of some of our exams (I work at a university). ...

Hello, I'm helping a friend with the statistics used in her dissertation, and she needs to look at controlling Type I error. She has two main...

Hi Folks, I'm designing a behavioral experiment and I encountered the following problem with randomization. I have two kinds of stimuli, let's...

I have a smallish sample of participants ~100 who have filled out a 45 item questionnaire >3 times over the course of 6 months. Can I use each time...

hi all- i have a friendly wager with a friend regarding the use of the better descriptive statistic for ordinal data: mean or median. say for...

Hi, I have a question which I have tried to solve for a while but still feel confused. I hope someone can give me a hint, so I would know how to...

Hey all, I found this from Wikipedia "Responses to several Likert questions may be summed, providing that all questions use the same Likert...

I was recently asked to analyze data from a survey that was conducted improperly. From that, I discovered how little I know myself about conducting...

Hello, I have a question, and hopefully you'll have a simple answer... When do I use Factor Analysis, when do I use Principal Components and...

Hi everyone, I hope that someone will be able to help. I have run a hierarchical multiple regression and a separate moderating regression...

Hello all. I am analysing a set of data, on the sample of 4200 subjects.47 questions were asked on a scale of 1 to 5(strongly agree to strongly...

Heys guys Iv gotten hold of a table, but im trying to find specific values to imput in the data. Im doing a report of data using hierarchical...

Hello everyone, I am doing my undergraduate final year paper:) Participants would be divided into two groups (A & B) and I am going to measure...

Sorted it out!

Hello all, I am a first year PhD candidate at the university of Amsterdam and I have a question regarding my data analysis. I have already talked...

Hi I have a question about whether to use parametric or nonparametric test to test the differences. In a within-subject design, I created a...

Hi! I am new to these boards, but I am really hoping that someone can help me. I am at a loss at how to move forward on this analysis. I am...

It might seem like an extremely newby type of question, but it's been bugging me all day. I've collected data on 121 participants, 107 women and...

Hi, Any advice would be greatly appreaciated for the following issue; I have 2 tests designed to measure cognitive changes in individuals. Each...

Hi guys, just a quick one, when reporting t tests for 6 tests, is it ok to use a table or should i report all 6 in the text? I need to report M...

Hi, I need your help in defining the right SAS code for my statistical model. I have repeated measures design with four levels: 12 subjects...

Hi, I have conducted an experiment to determine the influence of water stress and harvest time on KC value. There are 6 replications and 4 levels of...

Hi there, If someone could help me out here, that would be great. I have three different datasets with answers to the same question of a survey....

Hi everyone! I'm confused whether to use a cross-sectional or 2x2 factorial design... When age is a factor, is it typically a cross-sectional...

I have an experiment which is a between subjects design with 4 conditions and 1 independent variable. I have run a one way ANOVa on the results and...

Help is no longer needed with this problem.

I've been asked to analyze some subjective survey data. This is a new challenge for me. My previous training and experience has been with measured...

Hi, I would need to analyze data from the questionnaire - there is a nominal variable with more answers. Hypothesis: The most commonly cited reason...

Hello. I am an undergrad student not very familiar with advanced statistics. Thus, I figured someone on this forum could help me in this regard: ...

Problem solved. Please ignore/delete post.

I'm currently using strutural equation modelling to test a model made up of two exogenous variables, four mediating variables and one endogenous...

Hi guys, May I ask something about MANOVA ? I have 4 DV's, and only 1 IV, with only 2 categories (so far simple). I ran a MANOVA, and got a...

Hello guys, A small question... I have calculated Cronbach's alpha for 11 variables (which I was to turn into a summary variable), and got...

Hello, I am an masters psyc student from New Zealand who is currently having a bit of a dilemma. In addition to a quantitative music rating...

I'm writing out some results from an article that I'm presenting. Group: Sensorimotor Rhythm (SMR) Time 1: 320 | Time 2: 319 Group: Beta1...

Hi, I have often wondered about this, and now it is time to try and find out! I will summarise data below. I have 4 participants, each...

Can kurtosis be negative? Based on the formula we're dividng positive by positive (both squared) so it can't but SPSS gives me a negative value. ...

Hi, I’ve just finished collecting data for a massive cross-cultural, cross-developmental study. I'm interested in how we infer emotional states,...

among the scles that i am using in my study is the Brief COPE inventory. now i am in analysis stage. any one knows about this scale? my objectic...

Hi, I've run a mixed-design study in which I have an experimental condition and a control condition, run between subjects. I'd like to subtract...

Hello, If I have to build some variable from a poll, and my Cronbach's Alpha is 0.66, and no removal of a variable increase that, what do I do ?...

Hi, I have two objectives for my MSc project. One is investigating the reliability of using untrained observers (visitors to an aquarium) to...

Context: 10 judges Each scored the same 20 sample images for subjective aesthetic quality Scores were on a 5-point Likert, ranging from 0 (=crap)...

Ok so here is what I am attempting to do: My study is on sim sickness. So my DV is whether participants were sim sick or not (yes,no). My IV's are...

Hi everyone, I have a lot of within factors for data I am analysing - it was a 2x2x2x2 within subjects ANOVA. I am interested in one condition...

Hi All, Background: I am currently looking to explore changes in workplace burnout profiles across two time points. In particular, I am interested...

Hi, I have a lot of data which has 4 within conditions, each with 2 levels. I was wondering if I can use one of these conditions as a between...

Hi Im not too familiar with non parametric statistics and would really appreciate some help.. I have three groups of cells, each group getting...

hi there, i am running a 2x2x3 repeated measures anova with a covariate i have an interaction between two within-subjects variables, and...

Hi peeps, thanks for making such a helpful site - I'm hoping you can help me with my honors year thesis and teach me a thing or two on the way :) ...

I want to analyse the responses to a questionnaire. 37 items all on a 7 point likert scale Number of responses = 48 I was going to use factorial...

Hi, im running a MANOVA through GLM in spss. It seems to be having an issue with providing/running Box's M. spss gives this notice at the top of the...

I'm doing some research trying to find relationships between several different variables. I've been using Fisher's Exact test so far since it seems...

I am trying to figure out the relationships among food security, illegal fishing, and a variety of household variables in fishing communities on Lake...

I'm looking at ranked values of reasons using 1 scale participation, 1 scale for enjoyment, 1 scale for competence and 1 scale for autonomy....

Hi, I wonder whether anyone has any advice on median splits? I have 3 groups and I need to transform continuous variable into a categorical...