Questions tagged [reporting]
Guidelines for presenting results of a statistical analysis in a research manuscript, presentation, or for general public.
358
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How to interpret/report a confidence interval for spearman rho
I am doing my thesis in behavioural psychology and could use some stats guidance.
Being a behavioural study, I have a low-n but lots of frequency data.
I am using bootstrap statistics confidence ...
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13
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Comparing two groups in multi-classification: precision to indicate class imbalance, recall to indicate quality of samples
I have a situation where I need to analyse how a classifier for a multi-classification problem for images performs on two different groups. I need to interpret precision and recall values.
I am ...
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5
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1
answer
125
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Levels of significance for a publication
I hope this is not outside the scope of this community - in case, just sorry me.
I am going through adapting my manuscript to some author guidelines. Regarding p values, they say:
p values should be ...
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2
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2
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158
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Report non-linear term in a full regression model
Simple question about statistical reporting best practices.
I was asked to report the full model as a supplementary material of my paper. With the help of a toy example, let's say I have two variables ...
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2
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1
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58
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How do we report a regression with categorical * continouns interaction?
I was wondering how would be the best way to report this model ?
...
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What should I report on a 3-way ANOVA with a significant 3-way interaction effect?
I'm using graphpad prism to analyze some research data. The study design has 3 factors (Sex x Cardiac Anomaly x Exercise workload) for a variety of parameters. I don't use 3way ANOVA very often (and ...
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Correct reporting of percentages comparisons
I am struggling to find a clear answer somewhere else. So, when we have two percentage values, what are correct ways to compare these and formulate the comparison in a report?
...
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Reporting zero-inflated models: from two part output of glmmTMB to single estimate/p-value?
I have fit a zero-inflated model using the very user-friendly R package glmmTMB where both the zero-inflated and conditional models are significant.
...
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1
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1
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chi square, greek or roman?
I would like to report a chi square statistic evaluated from an experimental population in a manuscript. Do I use (1) the lower case Greek letter ($\chi^2$), (2) the upper case Greek letter ($X^2$), ...
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Is it acceptable/common practice to report IRT theta scores as a percentile?
I have been teaching myself IRT. I think I get it, however, I've not yet reached a point where I would say that I'm totally confident.
In assuming that the latent trait is normally distributed with ...
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How to report the results of a Linear Mixed Effects Model in R
I am struggling to write up the results of a linear mixed effects model I have conducted. Could someone highlight to me where the most salient information is, and how it should be formatted. I have ...
Rupert Riddle
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Uninformative descriptive statistics table
I'm trying to create a descriptive statistics table for a set of predictors.
For this I use python tableone package.
Predictors are numeric and non-normally distributed. For one of them I got:
...
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14
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Calculating and reporting effect sizes for mediation models
I am struggling to determine how to calculate and report the effect size for a simple mediation model. I am using Hayes' PROCESS tool to run the analysis. Please can someone explain how to get from ...
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1
answer
20
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Properly displaying Categorical Variables Represented as R Factors in a Table
I submitted the following table for peer review in a manuscript. The reviewer comments showed that the table confused them. In our study we have a pre- and post-score that we measured as DVs. Our ...
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1
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1
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Reporting odds ratios from a (non-logistic) binomial regression
I ran a aggregated binomial regression, with a non-binary bounded count variable, number of counseling sessions (out of a maximum possible six) attended during a clinical trial as the outcome. So ...
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103
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How should I report logistic regression on a poster?
An example of my odds ratio bar chart:
I am developing a poster that reports on a research project I've been working on this summer. For the project, I ran a logistic regression with 1 continuous ...
Cath
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1
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32
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How to report coefficients for main effects?
Suppose I run an OLS regression as follows:
Y = γ1 + γ2*X + γ3*(D*X)
where D is a dummy variable. I excluded one dummy variable, so the effect is in γ2 and γ3 must ...
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1
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Scientific reporting of time-varying covariates at different time frequencies
Say I have the following model:
$$y_{it} = \gamma_i + \delta {T}_{it} + \zeta Z_{i(k)} + \epsilon_{it}$$
where $y$ is some outcome for household $i$ in month $t$. $\gamma_i$ denotes household fixed ...
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2
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574
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How to report a P-value?
I am writing the results of my thesis, and I have a few questions on how to report P-values.
When is it appropriate to give the exact P-value, instead of writing e.g. P<0.05 (also in case of non-...
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2
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Is there a certain method to communicate the results of earnings without logging the variable?
I am investigating whether earnings differences have widened between different social classes in several European countries by comparing two different periods. The picture below shows the findings of ...
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4
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740
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Report power if result is statistically significant
We have submitted a paper reporting a statistically significant result.
One reviewer asks us to report what is the power to detect a significant association. As there was a previous paper on this ...
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2
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154
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How to report results from linear mixed models: interaction terms changing significance
I've used linear mixed models to test if factors genotype and sex influence colon length, while including batch as a random effect. I first ran the test...
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1
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1
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Non-significant logistic regression model - Are all coefficients non-significant, or are all coefficients equal to 1?
I've got a couple of non-significant logistic regression models, and am figuring out how to word it appropriately. Before that, I want to confirm the implication. Most questions/websites I have gone ...
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Logistic Regression Outcomes - How to report
I'm reporting my logistic regression results - I have a few, and I wanted to 'double check' and see if I'm getting the verbiage right.
Would anyone be able to advise on the below?
Response to toffee-...
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1
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Understanding the idx column in h2o metrics [closed]
h2o model metrics results report generated like this.
...
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32
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Interpret and assess the output of MCMC in high dimension?
In one of my recent presentations I used MCMC to generate 50,000 samples from a 13-dimensional random variable. And the audience of this presentation is largely made up of layperson that has no ...
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0
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50
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Univariate after stepwise regression?
My aim is to understand and describe the effect that independent variables (ordered and unordered factors and continuous) have on a continuous dependent variable.
First, I thought about using a ...
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36
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Reporting multiple one-way ANOVAs concisely
I am writing a report on my findings. I have used an ANOVA test on 15 different dependent variables. The dependent variables are execution times of some processes. I considered the variables ...
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1
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78
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Back transforming standard errors in a GLMM with a log-link
I'm using lme4 and have a GLMM with a log link and gaussian variance structure. I would like to report my fixed effect estimates with their standard errors, as well as the standard deviation of my ...
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2
votes
1
answer
211
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How to write the formulas for logistic & ordinal logistic regression models
In my thesis I am using logistic regression models (either binomial or ordinal, depending on the type of the dependent variable) to analyse the association between environmental quality and socio-...
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13
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How much detail do I need to report on the model-building process for a mixed effect growth curve analysis?
I am a data analyst on a health research team and I wondering whether I need to report process results and highly detailed process information from the step-by-step model building process for an ...
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2
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479
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Reporting the best test accuracy in a research paper?
I am running a random forest classifier for binary classification. I have split the dataset into training and testing. From training data, I select 70% of the data for hyperparameter tuning, I used 5 ...
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33
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Presenting mixed effects logistic regression to a non-technical audience
I'm presenting an analysis of readmissions to an executive audience within my hospital organization. They are decisively non-technical in terms of stats. My data consists of 2,600 admissions from a ...
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1
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48
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Appropriate decimal places and significant digits for baseline characteristics table in medical journal
I have read the guidelines written by Cole regarding the use of decimal places and significant digits when reporting in a medical journal. However, after reading the report, some matters are still ...
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2
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1
answer
295
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Reporting an SEM with path analysis from lavaan
I have been using the lavaan package to run my SEM (Path analysis) with two mediations (A -> M1 -> Y; B -> M2 -> Y). I have been looking for good ...
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4
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3
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210
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Contradictory test results
My question is relatively simple, and has to do with reporting seemingly contradictory results from statistical tests. This is the problem.
There are two independent groups, and two research questions ...
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73
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How many significant figures to report in the coefficients of a regression equation?
I'm given a table of experimental data, wherein a known functional relationship exists between its two columns $x/y$. I then perform regression to determine a quadratic fit equation ($y = ax^2 + bx + ...
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How to properly state a change in the highest distribution interval width?
Dear Bayesian modelers,
could you help me with some lingo?
Consider that we fit a Bayesian regression, really generic, y ~ alpha + beta*x. Let's focus on beta, the regression slope, which supposedly ...
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38
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One-sided vs two-sided hypothesis: Does the written hypothesis need to match the statistical test?
The analysis I am doing is two-sided. I was told that the written hypothesis should match the analysis, but this doesn't make sense to me.
I had written something like: "It is hypothesized that ...
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36
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Reporting robust regressions?
I'm running robust regressions in R (rlm from the MASS package) for 3 different models of regressions that are all related:
DV ~ IV1 + error
DV ~ IV1 + IV2 + error
DV ~ IV2 + error
I was wondering ...
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1
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159
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What information from a glm summary do you include in your results
I ran a glm looking at population changes over years, and am unsure which results I need to include for a poster presentation. I understand the p value is important for significance but other than ...
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87
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anova tukey posthoc writing up result
I am writing up Tukey posthoc result and comparing conditions A, B, C. The test shows that A and B are both significantly higher than C. However, how can I write that in one sentence?
Originally, I ...
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0
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6
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Reporting Heterogeneity in SAH
I am doing research on reporting heterogeneity in self-assessed health between different subpopulation groups of a country.
I have one variable (categorical, discreet) that I want to test using ...
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0
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1
answer
19
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What is the commonly used abbrevation for Difference-in-Differences in writing?
I am trying to repeat the word "Difference-in-Differences" in my paper many times. I am using "DiD" instead (but I am not sure whether it is true or not). I am looking for any ...
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171
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Interpret Generalized linear mixed model output
I've built a generalized linear mixed model due to non-normal data (no transformation will make it normal). I'm new to mixed models and I'm unsure how to report the output in a paper.
Here is the ...
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Using an APA format, how do I report an F-statistic with a value of 2.67e+30?
I am doing a statistical report on a regression model and my F-statistic is 2.67e+30. The values of my dependent and independent variables are expressed in dollars.
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Presenting result of bivariate regression to general public
We have a simple unvariate linear model of woodpecker abundance vs elevation:
woodpeckers ~ elevation
The model reports significantly positive slope for elevation. ...
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2
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1
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319
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minimum total N (value for denominator) when calculating a percentage
I am presenting a lot of percentages in a report. I understand that when the denominator is a small number (say 2 people) percentages should be avoided altogether - e.g. presenting 1 out of 2 people ...
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70
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mean and standard deviation report in a paper
Basically, mean and standard deviation are reported as mean ± std in papers. But it often bugs me because the standard deviation is sometimes so big that, say, <...
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2
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Is it appropriate to report the mean, standard deviation and coefficient of variation for binary measurements?
I am reading an article where the authors reported the mean, standard deviation, coefficient of variation, minimum and maximum values for binary measurements/variables. In the summary table the ...
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