**Tool:** onewaytests: a web-tool for one-way tests in independent groups designs

**Version:** 1.5

**Published:** 2023-10-03

**Author:** Osman Dag, Merve Kasikci, Anil Dolgun, N. Meric Konar, Sam Weerahandi, Malwane Ananda, H. Erkin Sulekli

**Description:** This web-tool enables the applied researchers to investigate treatment effects on dependent variable. In this web-tool,
we present the one-way tests in independent groups designs, pairwise comparisons, graphical approaches, and assess variance homogeneity and normality of data in each group via tests and plots.
This web-tool is a web-interface of the onewaytests package in R.
The application includes well-known one-way tests in independent groups designs including one-way analysis of variance, Kruskal-Wallis test, Welch heteroscedastic F test, Brown-Forsythe test.
In addition to these well-known tests,
Alvandi's F test,
Alexander-Govern test,
Alvandi's generalized p-value test,
Approximate F test,
Adjusted Welch test,
B-square test,
Box F test,
Cochran F test,
Generalized Test Equivalent to Parametric Bootstrap Test,
Generalized Test Equivalent to Fiducial Test,
James second order test,
Johansen F test,
Modified Brown-Forsythe test,
Permutation F test,
Scott-Smith,
Welch-Aspin test,
Welch heteroscedastic F test with trimmed means and Winsorized variances and
Weerahandi's generalized F test
not available in most statistical software,
are able to be reached via this tool. Also, pairwise comparisons can be applied if the statistically significant difference is obtained. Also, the tool includes Student t test, Welch t test and Mann-Whitney U test for two samples.
Normality and variance homogeneity are the vital assumptions for the selection of the appropriate test.
Therefore, this tool also enables the users to check these assumptions via variance homogeneity and normality tests. Moreover, it enables the users some basic descriptive statistics and
graphical approaches.

#### Updates

**Version 1.5** (2023-10-03)

(1) Alvandi's F test, Alvandi's generalized p-value test, Approximate F test, Adjusted Welch test, B-square test, Cochran F test Modified Brown-Forsythe test, Permutation F test, Welch-Aspin test and Weerahandi's generalized F test are included.

(2) Graphics have been improved.

**Version 1.4** (2020-01-02)

(1) Generalized tests equivalent to Parametric Bootstrap and Fiducial tests are included.

(2) Minor improvements and fixes.

**Version 1.3** (2019-04-26)

(1) Scott-Smith test, Box F test and Johansen F test are added.

(2) Two sample tests - Student t test, Welch t test and Mann-Whitney U test - are included.

**Version 1.2** (2018-09-11)

(1) Minor visual improvements.

**Version 1.1** (2017-10-11)

(1) Minor improvements and fixes.

**Version 1.0** (2017-04-14)

(1) Web-tool version of the onewaytests package has been released.

(1) Web-tool version 1.0 has been released.

Please e-mail osman.dag@outlook.com for any bugs and requests.