Questions tagged [reporting]

Guidelines for presenting results of a statistical analysis in a research manuscript, presentation, or for general public.

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2
votes
1answer
13k views

How to report result from two-way repeated measures ANOVA?

I have conducted an empirical study as part of my master thesis. I have developed a software tool where cards can be sorted (affinity diagram) and in the study each test subject did a number of ...
6
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0answers
100 views

Words that estimate numerical proportions of a group

There seem to be more than a few papers that surround the use of certain words to define the probability of an event without actually using the numerical probability itself. For example, if you are ...
2
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2answers
124 views

Should the risk of Type II error associated with a n.s. factor be discussed if this factor significantly interacts with another factor?

When computing a 2(A)$\times$2(B)$\times$3(C) ANOVA, I observe that only factor A has a significant main effect. Factors B and C were not significant, yet display a moderate effect size and low power. ...
2
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1answer
178 views

Are these possible LeveneTest results?

I have experimental data of response times that differ according to the factor TrialType: Regular or ...
1
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0answers
42 views

Reporting percentages in preference type survey questions

I came a cross some survey results that show user preferences, asked in the form of the most and least preferred choices. The result reported was something like "x % of people chose option A as their ...
2
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0answers
834 views

Reporting predicted outcome of mixed effects models

I am analyzing some group-randomized longitudinal trial data with three time points using mixed effects model. Some people missed 1-2 time points, and I didn't exclude any cases with missing dependent ...
1
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1answer
145 views

Research paper - section dependent variable for logistic regression

In my paper, in the section methodology, I have a subsection called dependent variable. But since I am performing a logistic regression, there seem to be 2 (or even 3) things that could be named the ...
1
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0answers
12k views

How to report results from Friedman's test including post-hoc results

I have performed comparison of repeated measures for a group using Friedman’s test (K-related-samples test) and additional post-hoc analysis with Wilcoxon signed-rank test and Bonferroni correction. I ...
3
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3answers
4k views

Reporting interaction effect for a 2x3 ANOVA

I have used a 2x3 mixed between-within subjects ANOVA to assess the impact of three feedback conditions (Grade, Comment and No Feedback) on participants’ scores on the Specific-Self Efficacy Scale on ...
13
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3answers
18k views

Number of significant digits to report

Is there a more scientific way of determining the number of significant digits to report for a mean or a confidence interval in a situation which is fairly standard - e.g. first year class at college. ...
18
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4answers
834 views

Why don't we use significant digits?

Any idea why we don't use significant digits in statistics? Something along the line of we are using estimates so rules about precision don't apply ;) ?
2
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0answers
2k views

How to report permutation ANOVA results in a scientific publication?

I have been using lmp function from lmPerm package to calculate differences between treatment levels (2-ANOVA). Now, I am wondering how to report ...
0
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2answers
73 views

Are there any ways to glean useful analysis information from a comments field?

I have a dataset of data and two of the fields are user comments - (I did not design this form) I would like to know if there is anything I can do to get any information from a comments field - are ...
1
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2answers
1k views

Do I discuss the lack of interaction if I already discussed lack of main effects?

I conducted an experiment with 2 independent group variables (gender and language - language indicates either native speakers or 2nd language speakers) and ran a 2 way ANOVA. There were no main ...
2
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1answer
11k views

How to do ANOVA write-up when there is no significant effect at all?

I was conducting a 'recall of negative words' memory experiment with a two-way between-group ANOVA and got no significant main effects and no significant interaction! How can I go about explaining ...
4
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2answers
309 views

Book recommendations for biostatisticians in CRO and pharmacy

I would like to learn more about the work and statistical methods performed as biostatistician in pharmaceutical companies and clinical research organizations. It seems the book "Essential Medical ...
5
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1answer
6k views

How to report the results of Fisher's exact test for larger than 2 by 2 tables

What is an acceptable phrase for reporting a Fisher's exact test where the number of rows and the number of columns are both $>2$. An example in R: ...
6
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2answers
1k views

Is it necessary to report the bivariate correlations when reporting logistic regression?

I am writing up a logistic regression that looks at parenting factors (ie., parental depression, anxiety and stress) as predictors of the presence of a child anxiety disorder diagnosis. What is the ...
1
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2answers
492 views

Sharing of a trained SVM model

I have been asked by a journal reviewer to provide the my final trained SVM models so that others can try to replicate or make use of the models. Is there an accepted way to do this? I was thinking ...
5
votes
1answer
805 views

When can I leave counterbalancing factors (between participants) in an ANOVA out of a write up?

The following is a problem that I keep encountering in different forms. For now, I give one example, but I would also be interested in the answers to the more general question. I have a design with a ...
0
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2answers
2k views

Cox-regression model: question about acceptability, meaning, & reporting

Apologize for insufficient info in my previous version of this question. So, I am comparing patient survival in a retrospective study between two different groups, using SPSS. Now the difference came ...
6
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2answers
14k views

Do we need to report the median or the Mean when using a Kruskal-Wallis test?

I have two groups. There is a significant difference according to the KW test. But do I need to report the mean or median of the groups?
11
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3answers
2k views

Mean$\pm$SD or Median$\pm$MAD to summarise a highly skewed variable?

I'm working on highly skewed data, so I'm using the median instead of the mean to summarise the central tendency. I'd like to have a measure of dispersion While I often see people reporting mean $\pm$...
7
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1answer
1k views

Model selection in a paper: what to say about the dropped variables?

I have a question (simpler than my previous post today I hope!), which is probably very stupid as nobody has never asked it before. Lets say I am trying to explain the effect of 3 variables (A, B ...
1
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0answers
1k views

How to reference GLM?

Following the question here, how to I refer to GLM in my project? Just a recap: GLM is a general model that includes a number of regression techniques. I have used it to test the main effects of ...
4
votes
1answer
697 views

Alternative name for “incidence rate ratio”

I'm using a negative binomial GLM to predict individual level scores on a psychometric test that ranges from 0-27 and presenting the coefficient "incidence rate ratios". It seems a little strange to ...
2
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0answers
82 views

Estimating the reliability of a test section

Consider me a "naive researcher." We have a test of 25 items grouped into 5 item types. Each item is correct or incorrect. All items are math questions, but we expected 4 item types to have ...
1
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1answer
9k views

How to report two-way anova results?

After finding a significant treatment in two-way anova, how do I report where the differences are? Every text I have read has left me at: Ah, the results are significant, so let's move on. In one-way ...
2
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3answers
14k views

Reporting main effects and interaction from ANOVA

When reporting a two way 2 x 3 mixed ANOVA I have recently heard that the interaction effect should only be reported if the two main effects are significant (APA style). Is this correct?
2
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1answer
149 views

Reporting non-causal relationships

What is the appropriate way of reporting significant regression coefficients of a multiple regression when all variables have been obtained at the same measurement occasion? Specifically, do I imply a ...
11
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2answers
27k views

Reporting results of simple linear regression: what information to include?

I have just performed some (very) simple linear regression in Genstat and would like to include a succinct and meaningful summary of the output in my report. I'm not sure exactly what or how much of ...
4
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3answers
582 views

How to succinctly report the correlation between two variables for 20 different subsets of the data in a table?

I have 20 correlation coefficients (r) to report, for example, .34, .45, .67, .23. and so on. These are correlations between Variable A and Variable B, based on gender, age, education levels etc. I ...
5
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3answers
27k views

Should percentages be reported with decimal places?

When presenting data using a percentage, is it a good thing to have decimal places, say 2 decimal places instead of rounding off to whole numbers? For example, instead of 23.43%, you round off to 23%....
3
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2answers
1k views

Is there a standard format for presenting a data analysis report based on a questionnaire?

I am doing some class work and I was wondering if there is a universally accepted format for analyzing and presenting the data in a Word document for data gathered from questionnaires.

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