correlation analysis

Hi I am an MSc student in physiotherapy. For my research study, I am looking to see the agreement between a patient's questionnaire and a physiotherapist estimate of the same score. So basically, the patient complete a ten part questionnaire, all scored 0-10. The physiotherapist sees the...

Hello. I would like some insight into an association test I can do for a categorical variable - Vendor (GE, Siemens, Philips, etc) and how this factor may affect the outcomes (ordinal scores from 0 to 10) of the performance of an algorithm on the images produced by these machines? Does anyone...

I have to do a correlation analysis for a paper and I don't have much experience in practical work. My data looks like this: The two variables have a linear (but not monotonic?) correlation but I think it is not normally distributed (last picture) and I wanted to ask if I can still do a...

Hello, I’ve just joined and am in need of any help that I can get. Basically I wanted to test whether phubbing ( snubbing someone to use your phone) impacts relationship satisfaction, sense of self-worth and respect for your partner. Does anyone know what statistical analyses I would need to...

Hi all! I am new to statistics (self-taught since I need it for my thesis) and I have a question that I haven't been able to find an answer to yet. For my thesis I want to find out whether there is any relationship between how students and their teachers answer a likert scale questionnaire...

Is there a single statistic which can reflect the different importance between similar correlations, say 0.7, based on different sample sizes such as n=10 and n=1,000?

Hey guys, for my master thesis I conducted an experiment and received for two variables means plots, that I will attache below. They were the result of two one-way ANOVAs. I wanted to test if the scores in the two variables differs significantly in three conditions. The next step would be a...

Hello, I am interested in finding out if there is any correlation between the the values that people ascribe to certain green spaces and the land cover type. (E.g Do people feel closer to nature in areas with water?). In my study I have a map of my study area and people can place up to three...

Hi! Hoping someone more statistically minded can help. I have a number of variables with different N (they are performance measures and some have been removed due to not understanding the task). I want to bootstrap the correlations but when I do this in SPSS it excludes listwise rather...

Hi everyone, I'm doing research on business owners, who have started multiple businesses. I had a sample of 2500 businesses and looked at the business owners' success rate from their first to last business. That gave me two groups: 1) business owners who were SUCCESFUL in their first business...

Hi, I want to perform an association analysis between a binary (dichotomous?) variable and continuous variable. The binary variable is whether something is present or not, "Yes" or "No"/ "1" or "0" .... etc. The continuous variable are numbers between ~150 and 170~. The continuous variable is...

I have two variables: the number of employees who work from home in the firm and the number of independent contractors in the firm - and I have this data for 70 firms. I am trying to determine what statistical measure of association I can use to determine whether there is a relationship...

Hello, I am working in spss 23 and I'm stuck. I have data for which I am attempting to determine if certain color of a personality (there are 4 values) have a significant correlation with how respondents answered to 12 leadership styles. I have entered my data into SPSS...I just cannot remember...

I would like to ask you for help and advice regarding one comment I received during the peer-review process for manuscript I submitted. My colleagues and I explored the validity of new instrument for estimating habitual nutrient intake. We compared it with another (reference) method using...

Hi, I am trying to compare two data sets available for x number of historical months. These are two different types of claims, i.e. first party claims and third party claims. We know that third party claims will increase if first party claims increase and vice versa, after a lag of few...

Hi I have collected data (n=84) for a study on the impact of non-financial reward satisfaction on employee's intention to stay in the organisation. My survey [Attached the copy of my survey] consists of 1-5 Likert Scale [V.Satisifed to V.Dissatisfied] ; Yes,maybe,no ; Importance...

Hi there, I am currently writing a statistics report which has to cover 2 questions: Firstly, what the correlation is between two different test scores of 30 participants. Secondly, what the power of the study is. I am really struggling to grasp what the pro's of doing a post-hoc power...

Let's say I have some samples, that I gathered per second, like these Number km Benzine Speed Weight 1 10 100 80 100 2 20 90 100 120 3 30 80 80 110 with thousand of samples and more than twenty features (like speed and...

Hi I have an ordinal data set across 50 survey questions (same response scale for each question). The data is non-normally distributed for each question, and isn't suitable for conversion to interval data. Much simplified example attached. I need to be able to test if there is a...

Hi, I have a set of 25 points and I used a TI-84 calculator to calculate the linear, quadratic, logistic, exponential, and power regression models for this data set. I have, likewise, obtained the r^2 value for each of these regressions. Some of these r^2 values appear to be quite similar. For...