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0answers
19 views

How to report my repeated measures analysis?

I've conducted an experiment with 30 participants using a counterbalanced design they performed a task in two slightly different conditions. After both conditions participants were asked to fill in a ...
0
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0answers
17 views

Reporting MCMC autocorrelations of variables in a hierarchical model

I implemented a a Gibbs Sampler for a hierarchical model with priors and hyperpriors that has around 16 variables. When it comes to autocorrelation plots, I have seen in some papers that they do not ...
0
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1answer
29 views

Labels for correlation coefficients

How could we attribute labels for correlation coefficients in order to facilitate reading the data specially for non-technical people or in qualitative analyses? For example: $\rho > 0.9$ - ...
4
votes
1answer
41 views

Rule of thumb for the number of significant digits to report

What is a good rule of thumb for the number of significant digits to report? Preferably, the rule of thumb is given in a citable publication. I am particularly interested in a rule that does not ...
0
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1answer
22 views

How to report large number of p.values in a table?

I have been comparing 13 groups to one another to assess significant differences. The simplest method of writing this up was a table, and there are numerous significant and non-significant results, ...
0
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1answer
27 views

How to report decision tree statistics?

I need to do a formal report with the results of a decision tree classifier developed in SPSS, but I don't know how. I know there are really well defined ways to report statistics such as mean and ...
3
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1answer
23 views

Statistical reporting of chi-square and odds ratio

I'm looking to see if the process and reporting are correct. (This isn't homework help. I am playing around with a secondary data set trying to learn more about the research process and statistical ...
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0answers
12 views

Choosing an p-value when removing irrelevant factors

So, pretend you run two mixed factor anovas: 1. between-subject variables: order and condition within-subject variables: trial.type the interaction for condition and trial.type is p = 0.06 ...
1
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0answers
23 views

How should the error-term in reporting results be properly written to make sense?

I want to report results obtained from a number of measurements with the average value plus minus the standard deviation. During my studies I was always thaught to use only one signifying digit in the ...
3
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0answers
44 views

What key information should be included in an academic paper that uses machine learning?

Imagine you are reviewing a manuscript that describes application of a supervised machine learning algorithm (e.g. SVM, CART, logistic regression, random forest etc.) to predict a binary output. ...
0
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0answers
20 views

Which statistics to report when conducting Bai-Perron structural break test?

i have to carry out the structural break test for a project. My data set contains 55 data points.I run the Bai and Perron structural break test in Eviews 8. when i get the result I have the F ...
0
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1answer
86 views

How do I interpret interaction effects in an ANOVA?

I really need help interpreting interaction effects for my ANOVA output. Can I interpret anything, if they are not significant? For example I am testing the effect of internal and external corporate ...
0
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1answer
44 views

When using bootstrap analysis, which estimates should be reported, the original ones or the bootstrap derived ones

I'm moving more and more to bootstrap for my analyses to estimate the variability of parameters of glm regression models. I usually report the bootstrap estimate of the parameter (the mean of the ...
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0answers
49 views

How to report bootstrap simulation?

I am conducting a simulation study, I simulate $N=10000$ samples of size $n=50$ from a distribution $F(;\theta)$, then I obtain a bootstrap sample of size $B=1000$ from the MLE of $\theta$. Some ...
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0answers
53 views

How to report partial correlation results?

I received the proofs of a scientific article and the editor changed the way we reported partial correlation results from symbol r = ... to ...
0
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0answers
22 views

How to report a convergence on a random walk on Markov Chain Monte Carlo

In our psychology experiment we have found Markov Chain transition probabilities to be a good way to analyse data, and the convergence of two Markov Chains on a random walk (we used 10,000 walks) to ...
2
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2answers
36 views

Detecting change in % responding to a question over time periods

A study has been asking the same ratings questions repeatedly year over year. Currently, the study is using a Column Means test in IBM SPSS Survey Reporter to compare the number of people responding ...
0
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1answer
43 views

How to report simple markov transition matrix

I have a beginners question on Markov chains. We found that a Markov chain might be a good way to describe the data we got from our experiment. Let's say we have two simple Markov transition matrix ...
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0answers
15 views

Is there a common abbreviation for the term “treatment” when reporting statistics?

I would like to illustrate results like mean, standard deviation in a table format. One column should feature the treatment. The table should be as compact as possible. The treatments in the ...
3
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1answer
59 views

Why does APA suggest to report the F statistic with an ANOVA result?

I probably view it too pragmatic but to me, the F statistic is merely a result of a calculation that is used to (magically) determine the value that I'm really interested in: the p. APA, though, wants ...
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0answers
35 views

Reporting variable importance results using cforest

I have a large data set of odour samples. I used cforest and varimp to determine the most important variables (ie chemical compounds) in identifying sex. How do I report this in a paper? Do I need to ...
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2answers
131 views

Should we report R-squared or adjusted R-squared in non-linear regression?

I am running a non-linear regression for a dose response with the equation: $$Y = \frac{c}{1 + \big(\frac x g\big)^b}$$ When reporting my results for publication, do I report the R-squared or ...
1
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1answer
231 views

How to report a bootstrap for a journal? What all should we report?

So, the APA has a format for reporting an ANOVA along the lines of (F(df1,df2) = NN.NN, p<=0.05). I am wondering if I end up bootstrapping my ANOVA, do I just need to mention that a boostrap has ...
4
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2answers
54 views

Correct and clear wording for non-causal correlation

Despite reading multiple statistics and epidemiology texts as well as studies, I have trouble describing the following in plain English for a public of doctors (so, non-statisticians or biomedical ...
1
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0answers
21 views

Very puzzling - naming the endpoint of survival analysis

A question that should be straightforward for statisticians but is puzzling me to the point I am nervous. I am doing a PhD in Epidemiology and am going to use Cox regression. The predictor is a ...
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0answers
18 views

What information to include when reporting the results of simple linear regression in a scientific publication? [duplicate]

I am writing a scientific journal paper. In the paper, I describe one simple linear regression analysis (1 dependent variable and 1 independent variable). At the moment, I have included a scatter ...
0
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0answers
6 views

Searching for a term for systematic, universal non-reporting in survey data

I am searching for a technical term to describe a situation I have run into my survey research and analyzing survey datasets. In experimental survey research, systematic under-reporting and ...
0
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1answer
28 views

How to proceed with lagged variables and correlation matrix?

Would it be correct to report a correlation matrix with the variables not lagged when you use lagged variables to fit the model? I think that you have to report the variables that you use in the ...
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0answers
58 views

reporting mixed effects linear regression: t statistic or model comparison?

We have a one factor three level repeated measure experiment with ratio data (reaction times). We fit a mixed effects linear model using lmer (in fact lmerTest) - maximal, with subjects and items as ...
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0answers
9 views

how to report effect sizes for average MAPE when comparing methods

My question is around how to report effect sizes ? I have 2 different methods and a naive method: I have method 1 applied to 1000 time series data and its average symmertric Mean Abs Percentage ...
3
votes
2answers
86 views

How to prevent the appearance of overfitting due to firing many models on a small data set?

I applied support vector machines to a relatively small dataset. I used relatively simple techniques, and achieved publishable results. Now, when already writing the paper, I got an idea, which would ...
1
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1answer
56 views

How to choose the observation with the median value when there are an even number of observations?

Obviously, in most circumstances, you would just take the mean of the two middle values. However, imagine a dataset of 100 countries. You want to know which country has the median household income. ...
8
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2answers
199 views

Why is it so uncommon to report confidence intervals for medians?

Why is it so uncommon to find confidence intervals reported in papers from applied sciences? I work mostly on Computer Science, but often read papers from (Social) Psychology, Sociology and Urban ...
0
votes
1answer
121 views

Reporting exponentiated coefficients in a logistic regression, t-value and confidence intervals

I recently encountered a situation regarding the reporting of two predictor effects in a logistic regression, which I plan to report their exponentiated coefficients in the text with their SEs, t- ...
1
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0answers
29 views

Significant digits for curve fit to numerically generated data

Say that I fit some data with some model, for instance a linear function $y = mx+b$. What is the proper way to report the fitted coefficients and the goodness of fit? Specifically, if I do the fit in ...
2
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2answers
41 views

How best to communicate uncertainty due to data quality and measurement issues

This question is coming from a business background. I want to focus here on issues that occur within a business (or perhaps academic) background which are usually difficult to quantify but it is ...
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4answers
539 views

Confidence intervals when the sample size is very large

My question could be rephrased as "how to assess a sampling error using big data", especially for a journal publication. Here is an example to illustrate a challenge. From a very large dataset ...
0
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0answers
35 views

What is going on here? Omnibus repeated measures ANOVA is marginal, but follow-up planned pairs <.05

I have a repeated measure ANOVA with a decent sample size (124 participants, with a score for each person for 3 conditions). The data are moderate to strongly positively skewed, (though similarly). ...
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0answers
435 views

How to report results from a linear mixed model “test of fixed effects” in SPSS?

What is the appropriate way to report results for linear mixed model based on the "test of fixed effects" table in SPSS? Is it just (F=xxx, p=xxx)? This isn't my data but this is an image I found of ...
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0answers
15 views

Accuracy of reported measurements

I take three measurements: 71, 72 and 74. Each of the three measurements have 2 significant digits. The mean of my three measurements is 72.33 (rounded to 4 significant digits). Because my ...
4
votes
1answer
159 views

How much of your p-value do you report in a publication? [duplicate]

I know this will vary from journal to journal, but I'm working on my first publication and have had little guidance, so any personal experiences would be helpful to me. When you present your p-values ...
4
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2answers
184 views

How to properly state the average of a discrete number in a report?

I'm wording a report on the averages of a discrete variable, and am trying to get the most appropriate sounding wording. Consider the able below: ...
3
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0answers
333 views

Report in ANCOVA: descriptive means or estimated marginal means?

I have conducted an analysis of covariance, ANCOVA, followed by Bonferroni post-hoc tests, on SPSS. I want to report the differences between my groups in text (APA style) and in a corresponding bar ...
2
votes
1answer
890 views

Why would I want to bootstrap when computing an independent sample t-test? (how to justify, interpret, and report a bootstrapped t-test)

Let's say I have two conditions, and my sample size for the two conditions is extremely low. Let's say I only have 14 observations in the first condition and 11 in the other. I want to use the t-test ...
1
vote
1answer
203 views

How to report data when there is interaction

I did a multivariable logistic regression analysis to estimate the effect of an exposure (E) on an outcome while adjusting for confounders. I investigated interaction and discovered a significant ...
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2answers
3k views

Reporting degrees of freedom for Welch t-test

The Welch t-test for unequal variances (also known as Welch–Satterthwaite or Welch-Aspin) generally has a non-integer degrees of freedom. How should these degrees of freedom be quoted when reporting ...
2
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0answers
158 views

Normality violations in multiple regression - report bootstrapped CIs, p values & t values?

I have analysed some data for a research project using multiple linear regression. However, normality assumptions for this method were not met in my data (and could not be resolved using ...
3
votes
2answers
610 views

From SAS to R - what are “must” packages for reporting

One big advantage of SAS over R is arguably its ability to produce quite complex reports with few statements; think of PROC SUMMARY or ...
0
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0answers
22 views

Decriptive statistics for a large amount of times series

I have 1,000 individual company time series of a variable, say X, observed 500 times (weekly observations). I would like to describe how this variable behaves. A graphic presentation of each time ...
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0answers
65 views

Troubles reporting transformed variables for log and sqrt into a general equation

Good morning everybody, I see CrossValidated has really high level of questions and answer; I am just a student so I hope this question is not too basic... Suggestion of further readings available ...