Questions tagged [analysis]

For questions dealing with the applied analysis of a specific dataset or design of experiment. Posts tagged analysis are requesting statistical consulting assistance from the network. Questions tagged analysis need to be phrased appropriately.

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24 views

Should this be an ANOVA or a MANOVA?

I'm fairly new to statistics and am struggling to figure out whether I should be using ANOVA or MANOVA for my research design: Participants will watch a performance together in one of three different ...
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What statistical test should I used for this study design?

I am very much not statistics minded and could really do with some help figuring out what statistical test I should be using here: My premise is: Activity X can lead to outcome Y which in turn can ...
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3 SLS and GMM model

I have already run panel data analytical techniques using pooled OLS, fixed and random effect model on my panel dataset. I want to further know, the appropriate model to run for the robustness check. ...
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How do I incorporate animals as random in a Student's t-test used to explain changes in body temperature before and after trekking exercise? [closed]

Twenty donkeys were randomly divided into 2 groups. Group 1 carried load and were trekked. Group 2 donkeys were trekked only. The body temperature was recorded before trekking a total of 10 km and ...
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Running an ANOVA on a likert scale question

My participants heard two kinds of stories i.e. two conditions and rated two protagonists in each of these stories or conditions on a Likert scale of -5 to +5. So I had two conditions, eight stories (...
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Starting point for survival analysis (overall survival and Porgression-free survival )

I have retrospective data of cancer patients who treated with chemo + radiation therapy and we want to measure the effect of treatment approach on survival so to determine the start and end point for ...
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Between Subjects Likert Analysis -- Treat as Ordinal or Continuous for Stats Test?

I have 4 groups in a between subjects design answering likert scale questions. I am wondering how to analyse the data. There are 20 questions for each user in each group of 30 (so 120 people all ...
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Statistical comparison of data obtained from Bootstrapping?

I know that there are many pages about "bootstrapping statistics" and I have read several of them. However, either I am too stupid to understand them, or they do not represent what I am ...
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I am testing growth in 4 different hydrogels (and in 4 different medias). Which test should I use to determine which hydrogel was best overall?

I am testing in vitro ovarian follicle growth in 4 different hydrogels. I have also tested 4 different medias with each hydrogel. I need to use a statistical test to determine which hydrogel was best ...
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How to standardize data in different datasets to compare?

The dataset is a record of each link performance. It has user score, total # of sends for each score level users, # of clicks from each score level users. There are datasets a and b. Their score ...
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In survival analysis, can the last follow up date be with a different specialty

I'm interested in collecting the date follow up for patients with cancer of the uterus. it's retrospective chart review. Can the date of last follow up include visits to different specialties or it ...
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How to evaluate likert items with quantiative (numerical) data

While testing some software I had users fill up a survey which asks questions in Likert type item(1-5) about the 3 different states of the software. These states were: one without aid, one with aid in ...
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Comparing models with the betareg packpage

I'm having problems using betareg. I have a dataset that always shows different results depending on how I perform the analysis. I'm using ...
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Confirmatory Factor Analysis elimination process

For my thesis, I conducted a survey with 89 questions, resulting in 6 variables in total. The scales I used for the variables are already validated in the literature. Now, I want to find out, which ...
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Kaplan Meier (KM) estimator and non independent observations

I have to deal with a statistical issue in a study, specially with the use of Kaplan-Meier estimator in the case of non independent observations. Background of the study: We follow-up patients (N = ...
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Interaction analysis with ordinal variable as dependent variable

Good afternoon - I have the following question: I would like to analyse the relation between clinical findings (ordinal scale) and mRS (=dependent variable / ordinal scale) in bridging vs. intravenous ...
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What statistical design and analysis is appropriate for this single-arm study?

I have research to perform but I am not very familiar with statistical design and the relevant analysis that I have to do, but here is the idea of what I want to do: It is a single-arm study, I have a ...
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Likert Scale for 5 independent variables, one yes/no question for dependent variable

I'm seeking to find out whether certain variables (5, total) influence individuals' decision/intention to invest for their own retirement. Whether they already do invest or plan to doesn't matter -- I ...
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Should I be considering the results from a study that just states percentages but didn't do any statistical analysis?

I have a question regarding results from a study and it's probably a very basic question (but I only have a very very basic understanding of epidemiology). I'm looking at what characteristics have a ...
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How does the plot of the output of librosa.stft work?

So, I have been analyzing audio data. I used the librosa package and used its .stft() function to calculate the Fourier transform of my audio data. I did the following- ...
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What analysis to use?

I performed an experiment about tacile localisation where 20 participants were measured on the same 4 conditions. There are 2 factors: Conditions(crossed and uncrossed) and orientation (near, far). So ...
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How to deal with redundant data within a sample when calculating the standard error?

In my research, I analyse pixel data from a 2D microscope image. Each pixel represents a unique spatial position. In my image, each pixel $i$ has a corresponding brightness value $x_i$. I assume the ...
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Need help understanding multiple linear regression results

I am conducting a study and wanted to fully understand what my results are indicating. To me, they are reading that when factoring Z, there is a statistically significant relationship between X and Y, ...
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Compare location data of passes made by two teams in the same game in a coordinate system

I have two sets of data (courtesy of Statsbomb), where each contains the x,y location of where passes occured during a football game as well as the minute of the event for the two different teams. My ...
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Determine the effect on margins of a price increase

I hope you can help guide me in the right direction! Any advice is appreciated! Situation I'm currently analyzing the effect of a price increase from a retailer on a few 100 products. I'm interested ...
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What kind of analysis can I extract from bayes glm output?

I have 40 files (40 variables) that start like this from a bayes glm model output as csv files. I am a total beginner at model evaluation. Edit: This is unfortunately all that was given to me. I can ...
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Duration in Survival Analysis for churn prediction

I'll be running survival analysis to help predict churn risk in a telecom company. However, I've some questions regarding the best way to compute the 'duration' target feature in my dataset: I have ...
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Potential direct effect of moderator on independent variable [duplicate]

I am looking at the effect of a moderator variable (MV) on the association between my independent variable (IV) and my dependent variable (DV). I have now come across a theoretical paper which ...
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Time series data in regression analysis

I'm making a regression analysis in Python to find out the dependence between the stock price and several variables : my dependent variable - share price of company, independent variables - price of ...
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Ordinal Regression - Using a Continuous Attribute of 3 Categories as a Covariate as a Proxy for the Categories

I'm conducting an ordinal regression with SPSS 28. I have 3 subsets in my data (n=87 total, mostly equally distributed between the subsets) that represent 3 different scenarios where study ...
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How to determine uncertainty of data from a bayesian posterior distribution

I am a bit confused as to how we determine the uncertainty of a set of data from Bayesian Analysis. In my specific case, I am asked the following: Assume $f(x,x_0)$ as the correct model for the ...
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Statistical analysis of carbon dioxide flux data

I have been measuring flux of CO2 in (mmol m-2 d-1) from two different rivers and I now want to do a statistical analysis using IBM SPSS but I'm not sure where to start. One lake is showing negative ...
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How to calculate power?

I was wondering how you calculated the power via Gpower with these results? There are a total of 87 participants and the alpha level is 0.05. It is a longitudinal design in which I performed a ...
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repeated measures design vs. MANOVA power analysis

My collaborator and I are building a study where participants will read some profiles that vary for 3 dimensions each having 3 levels (9 profiles in total). For each profile participants will have to ...
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How to test a hypothesis (python) - customers with larger fares are more likely to travel alone?

How to test my hypothesis - the larger the fare the more likely the customer is to be travailing alone? ...
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What's the best way to analyse changes in 1 DV due to 2 IVs and numerous covariates across 3-waves in R?

I need some help deciding how to model/analyse some data. As I'm still selecting a model I don't have code to share right now. The research situation is as follows: a 3-wave experimental study (wave1: ...
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How to represent ranked ANCOVA in a violin plot?

When I did ANCOVA, I did not find normality and equality, so I did ranked ANCOVA(nonparametric tests) using SPSS. well.. I think that if I use just ANCOVA(parametric tests), I could create the violin ...
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Regression with multiple dependent variables

I am looking to derive the regression equation for the data in the table below however i am faced with two problems, using Excel, regression equation can't be derived due to the NAs in the data multi-...
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Question about proper Data Analysis methods for A Discrete Dataset

everyone. I am a fourth-year statistics student and I wonder if I could have some recommendations for proper analysis methods for this dataset. The dataset contains var1, var2, var3, var4, var5, var6 ...
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What part of a dataset do I apply a traditional, statistical analysis to linear regression?

Note: I've edited my question as recommended below by @EdM. Suppose I have a supervised learning problem on a sizeable tidy dataset with real values—-e.g., the dataset has 100,000 rows or observations....
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3 categorical variables analysis

apologies if this question is obvious. I am trying to determine what type of analysis I should run for an observational study I am doing. The variables are sleep (sleep deprivation <7 hours or ...
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Mediation Analysis with Only Indirect effect

currently doing a mediation analysis for the following research framework (A -> mediated by C-> E) With such a framework, there's an indirect effect of mediation and no direct effect. Can the ...
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Combining earnings report data with customer satisfaction survey data

There is a popular Kaggle dataset on airline CSAT. It is a customer satisfaction survey using features of inflight services and travel procedures such as ...
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One or multiple regression/s?

Say your equation in a paper has 6 coefficients, one being your main interest (dummy for Disability == Having at least one disability: coded 0/1). This estimation is done. BUT you want to dig deeper, ...
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Can I pool data sets answering identical question for different examples for moderation multiple regression analysis?

I am currently doing research on the moderation effect of the aim on factors (independent variables) that influence technology acceptance (dependent variables). My research is as follows: Group A had ...
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Kaplan Meier estimator which form to use

I'm seeing different forms of kaplan meier estimator. The most intuitive one for me is $$ \hat{S}(t) = \prod_{i=1}^{j}(1-\hat{h}_{i}) $$ but my textbook uses $$ \hat{S}(t) = \prod_{r=1}^{i}\frac{n-r}{...
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Which statistical test should I use to evaluate my hypothesis?

My hypothesis states that "Multiplayer Game is more enjoyable than the single-player game" and lets suppose I have 2 variables one categorical with two categories and the other one is ...
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How to implement 'Multiple Complete Random Imputation' as described by Kroh (2006)?

I am a PhD student trying to perform an exploratory factor analysis on response data from a set of 5 attitudinal Strongly disagree/Strongly agree Likert items for a survey study I am working on. The ...
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Missing Data in Exploratory Factor Analysis due to participant's inability to respond (i.e. Not applicable)

I am a researcher working on some data analysis for a questionnaire study on the influence of environmental context on portable media listening experiences. The main section of my questionnaire ...
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Is Factor Analysis what I am looking for?

I have a calls dataset with ~20 variables and I'm trying to determine what combination of variables lead to a "Win" or a "Loss". For example, when variable A is high and variable B ...

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