[KGB-L3] Questions regarding DrScratch platform

[Gregorio Robles]

  Dear Ioannis,

  first of all, thanks for yor interest in Dr. Scratch. Sorry for the late
reply, but these last days have been very busy. I am replying to your
questions in-line below.

El mié, 29 dic 2021 a las 10:02, Ioannis Stefanou (<istefanou77 at gmail.com>)
escribió:

> Hello Dr scratch team,
>
> Initially, I would like to congratulate you for this outstanding project
> that provides analytics on scratch projects. I find the idea incredibly
> useful. Furthermore, to think that the functionality is provided for
> free... It is truly commendable.
>
> To the point of my email, I have a few questions that I would like to
> extend to you. I am a PhD student currently working on a project
> researching how effective scratch games are as educational tools for
> students. My questions are:
>
> Using Dr.Scratch platform (http://www.drscratch.org/)
> 1. Is it possible to detect plagiarism between student projects?
>     To present a use case for this, assume a school assignment that
> requires students to create a scratch project. Two students submit their
> solutions. Is there a way to ensure that the two students did not copy (and
> essentially cheat) sections of their code from each other?
>

  Dr. Scratch currently looks at the expressivity and detects bad smells,
but does not have functionality to see if there is plagiarism. That could
be a good idea for an undergraduate thesis, as there is much research on
the topic, but nothing with Scratch as far as I am aware of.


> 2. How reliable is the algorithm that provides the results?
>     I understand that it might be hard to provide an extensive explanation
> on the inner-workings of your algorithm. However, I would be greatly
> interested in some references that would explain the evaluation process of
> the criteria that are listed on your website as key-points.
>

  you can have a look at the paper that describes de algorithm:
https://revistas.um.es/red/article/download/240251/182971/

  if you look at Jesús's profile at Google Scholar, he has authored many
papers on testing how good the assessment is compared to other inputs
(human judges, complexity, etc.)
https://scholar.google.es/citations?user=ADmHd7sAAAAJ&hl=es

3. Is it safe in regards to confidentiality?
>     I am interested in using your tool to evaluate some personal projects
> that are under development for my PhD research. Do you provide any
> reassurance that  projects uploaded to your platform are not stored and/or
> distributed to unauthorized third parties? I hope that this final question
> does not offend you as this is a genuine concern of mine. As I already
> stated, I deeply respect your efforts in building this platform for the
> general public.
>

  we don't store any personal information with the projects, and all
projects that are uploaded are treated individually. We have been thinking
to extend the analysis to include functionality that might have privacy
concerns, but this has never been deployed.


> Thank you for taking the time to reply to this email. I understand that
> your time is valuable. Even short answers are truly and deeply appreciated.
>

  I'd be happy to answer more questions and if Dr. Scratch is of that vital
importance to your research we could maybe schedule a confcall so that you
can tell me a little bit more about it.

  regards, Gregorio


> Kind regards and best wishes for this upcoming holiday season!
>
> Ioannis Stefanou
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>


-- 
Gregorio Robles
Universidad Rey Juan Carlos
Campus de Fuenlabrada (Madrid), España
gregorio.robles at urjc.es | www.urjc.es | @URJC |
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