Forum: Statistical Research

Suppose I have two time series (Series1 and Series2) which are identical from timePeriod -200 to timePeriod 0. Say that in timePeriod 0 they are both...

Hello! I'm new here (and to statistics as well). I could use your advice about how to analyze the data for my master thesis. The first part of...

First of all, many thanks for looking at this post. My problem is partly technical knowledge (or lack of), but mainly one of perception! I’ve been...

Hi everybody I have been using Andrew Hayes PROCESS to calculate indirect effects in a multimediational model. Preacher and Hayes (2008) emphasise...

Hello Thanks in advance for you help. I am currently conducting an experiment and would like to get opinions on the best way to go about...

Dear all, I am currently analyzing the free-text component of a satisfaction survey using SPSS Text Analytics. A lot of our questions were...

Hi all, I got a project from a newspaper company to find out the consumer preference of different middle income and high income group people that...

hi everyone, i am a new member of this forum and i'm not statistician. my english is not good, sorry for language. i'm having trouble with the...

1. Given a frequency data set (collected from 10 users by letting them watch certain videos and asking some questions about the videos) how do I...

Given certain products (ProductA, ProductB, ProductC, etc..) users are asked to rank them according to theirpreference (whether they like , somewhat...

Hi guys, I need help with this problem, I believe that is a direct application of Neyman Pearson Lemma, but I don't know how prove this. a)If...

I'm writing a piece that introduces a new correlation like measure between time periods. I would like to get this one published somewhere. The...

Hi - I am looking to collect data pertaining to physical activity and overweight in women with breast cancer. I have the outcome (overweight/obesity)...

Hello gents. I am new here and I have a question. Is someone here has a bit of will and knowledge around some statistical software or programming...

I did hierarchical linear modeling. Two variables were not significantly related to the dependent variable at level 1, but I retained them in the...

I've recently collected data as part of my university course to answer the question 'Does social structure in captive meerkats affect behaviour and...

Hi, I have a question on trying to reverse engineer the probability density function from which a set of numbers were generated. My setup is the...

I asked this question months ago, and did not get a response. So hopefully, someone can help me out here. Here, I am running a 2way repeated...

Hi, I am working on my dissertation and am stuck with the data analysis. I am dealing with 4 variables, all of which are categorical variables....

Good morning, I would like to have some deeper information about omitted-variable bias. Here is the real model: Callback = Constant + b1*Race +...

Hi, hope you can help. i want to see if single or married people who have emotional and or social support are less likely to be lonely. i...

Hi, I have several sets of data that are rather different in their absolute numerical range. Some datasets stretches between 20-40, and others...

I'm conducting a study on the impact of an intervention on the disease-specific readmission rate in a hospital unit. Based on similar studies out...

Hello, I have 2 key questions: 1. I have a continuous variable in my dataset which is definitely not normally distributed. I converted the...

I am trying to perform a Post-ANOVA Tukey test to determine the differences between treatments. I have over 50 treatments (k>50) for some of my...

Hi, I hava a problem with weight construction in Data envelopment analysis. My goal is to construct weights that reflects the reality of my data....

Hi there, I want to explore the possibility of using meta-analysis statistics for prediction of various scenarios. I came across a...

Hello, I am not someone who is extremely familiar with statistical theory so I have had to do a lot of reading to arrive at these ideas. I am...

I am a proposing a research topic and want to see if what I propose is possible given the data I have. If not, I would like to hear your ideas on...

Is it acceptable using kappa coefficient for examining intra-rater agreement? or which statistical measurement do you prefer to use for...

Hi, Can anybody give a brief description for different non-parametric tests of distributions (like normality)? what are differences between...

I'm trying to test for autocorrelation in the residuals of an AR(p) model. The stata output is: "the exogenous variables may not be collinear with...

Hi, I have some issues with my discriminant validity, as some of the factor variance correlations are greater than the Average Variance Extracted....

Hello, everyone, :wave: I have an ANOVA-analysis task, and I need to come up with the most suitable research questions for it. the task is as...

I trying to decide the best statistical test to use for a survey. The RQ is related to employer acceptance of various MBA degrees. The sample is...

Hello, I would like to explain rain data according to different variables such as humidity flux, wind ... The data are spatial (25 pixels) and...

I was planning on running a repeated measures ANOVA but found these issues with my data. The assumption of sphericity was violated as assessed...

Hello everyone, I have a very limited experience in online research and if you have 1 minute to help me, I will be grateful. Every day I build...

Hi all, My question is: Will it be fine if we use residual analysis, (observed-expected)/sqrt(expected), to test the pattern of association...

I have done an experiment and am in dire need of some advice on statistical methods that I should use to answer the questions I seek. The...

Hi all, i'm new here and it's a pleasure to join this forum. This is my first question here, i think it's easy to answer but i'm not absolutely...

Is time series analysis correlational research? or descriptive research? Please help me!!

If anyone know any good paper or other resource that gives an introduction to p-value plots, I'd greatly appreciate if you could share it.

Hi, I am struggling to understand, how support/reject the hypotheses addressed by my research model. I have conducted a second order CFA and...

hi everyone, i have been a task about how to estimate the word "precision" from statistical book by using cluster sampling. plz help me, i've been...

Good day, So I have data collected over the semester for avian behavioral ecology. the basic breakdown is high versus low quality habitats (1,0)....

Dear madam/sir, My apologies for posting so quickly yet another question, but hopefully you can help me out once more. I'm still analyzing my survey...

Dear madam/sir, Recently I have designed a course that was run at three different locations. To know what the students thought of the course they...