Reviewer Guidelines

Guidelines for Reviewers

Thank you for agreeing to review a manuscript for the EPJ, helping in that way it to guarantee the highest possible quality of the publication. Taking into consideration the important role of reviewers in the scientific process, we would like to cite some significant issues concerning the reviewing process.


A) Before starting the review

  • Be sure that the article you are going to review matches your expertise, otherwise do not accept the invitation
  • You are asked to complete the review within six weeks of receipt of the manuscript.  If you think that you have not enough time for the review, please let the editor know immediately.
  • In the case you recognize the origin of the study, despite the double blind review process of the EJP, or you discover a potential conflict of interest, please declare it to the editors the soonest possible.


B) Conducting the review

  • Please remember that, a paper under review is confidential document and must not be shared with others.
  • In the rare situation of detecting plagiarism or duplicate submission of the same manuscript to another journal, please contact the editor.
  • Please evaluate the article on the following criteria:
  1. Paper’s originality

The articles that will be accepted for publication should be sufficiently novel and interesting for EPJ readers. You can check it by searching the literature using relevant key-words.


  1. Paper’s Structure
**You can use the current Publication Manual of the American Psychological Association (6th Ed.) as your guide
  • Title: It should accurately express the article
  • Abstract: It should reveal the content of the paper, as well as, be accurate, autonomous, concise and coherent, not exceeding 250 words.
  • Introduction: it should show the importance of the problem being examined, summarize the previous research findings that form the theoretical context, as well as accurately describe the aim of the study.
  • Method: It should be appropriate for the stated aim of the study, including detailed information about participants, procedures and apparatus (when appropriate). Furthermore, details about sampling design, apparatus psychometric characteristics, as well as each step of the study should be provided. Regarding data analysis, apropriate statistics for those specific data should have been used in order the research questions to be examined. Except for the significance, the effect size should also been presented. Finally, the computer software package used for the analyses should be cited.
  • Results: the findings of the statistical analyses are presented here, without any interpretation. Results should be clear and written in a logical sequence. Moreover, tables and figures should follow appropriate style and format.
    **If you are not comfortable with statistics, please let the editor know when you send your review.
  • Discussion: this section should been associated to the theoretical framework presented in the introduction. The findings of the current study should be related to both authors’ expectations and previous research and then be critically discussed. Moreover, both the limitations of the study and the unexpected results should be reported and discussed.
  • Reference list: the references in the text should match with those in the reference section that in turn should be appropriately written.


3. Paper’s writing clarity and language

The writing should allow a precise, brief and accurate presentation of the study, avoiding redundancy. In the case you notice grammatical errors in the text you do not have to correct them. Nevertheless, bring it to the editor’s attention. Moreover, check the length of the manuscript that should not be longer than 25 pages. If it is over the page limit, please make suggestions for careful reduction, so as significant information not to be lost.


C) Writing and returning your comments

  • Please submit your “reviewer’s form” within the time limit of six weeks. If your circumstances change and you cannot complete the review in time, please contact the editorial office as soon as possible.
  • Please provide general as well as specific comments. For your specific comments identify the page, paragraph, and line number together with your comment
  • Reviews of EPJ papers are "blind", so reviewer’s identity is protected. Nevertheless, when you send your comments to the Editor, remove personal information before saving the document, so as to be sure that you maintain anonymity.
  • When you write your review, please keep in mind that the authors will read carefully your comments so as to improve their paper. For that reason, please avoid arrogant or harsh statements. Reversely, provide a logical assessment and constructive, polite comments that will be helpful for both editors and authors. Your recommendations on how the manuscript could be improved will be helpful even in case you propose its rejection.


D) Reviewing a manuscript for a second or third time

  • All your major concerns about the manuscript should be included in its first review. Only minor revisions should be asked for in the second/third review unless authors have made major changes in the text.

Print Email

Paper submission

EPJ will not consider for publication any manuscript under review elsewhere or substantially similar to a manuscript already published. Editors retain the right to reject manuscripts that do not meet established ethical standards. Full instructions are available on EPJ Guidelines. Please also submit a cover letter that contains the name(s) of the author(s) and affiliation(s), and the street address, telephone, fax, and electronic mail address of the corresponding author. A corresponding author’s submission to EPJ implies that all co-authors have agreed to the content and form of the paper. Any financial interest or conflict of interest must be explained to the Editor in the cover letter. The corresponding author is responsible for informing all co-authors, of paper submission, editorial decisions, reviews, and revisions.

EPJ is an Open Access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This is in accordance with the BOAI definition of Open Access.

Manuscripts will be submitted electronically, as an attachment to an email  in Word®, to Carefully proofread the final revision, check the references for accuracy, and retain a copy of the manuscript.

 Submit your manuscript: This email address is being protected from spambots. You need JavaScript enabled to view it.

Print Email

Guidelines for Authors

1. Preparation of Manuscripts

Manuscripts must be written in English. Text should be supplied in a format compatible with MS Word for Windows. Charts and tables are considered textual and should also be supplied in a format compatible with MS Word. All figures should be supplied in .jpg format. All manuscripts must be typed in 12pt font and in double space with margins of at least 2.5 cm. Papers should not exceed 20 pages including tables and figures. Authors should prepare manuscripts according to the Publication Manual of the American Psychological Association (APA) (5th ed.). Using the APA as a guide, pay particular attention to manuscript content and organization (pp. 3-30), editorial style (pp. 77-268), and manuscript preparation (pp. 283-305). Check format against APA sample paper (pp. 305-320). Note that Method is singular, and the heading, Participants, is preferred over Subjects. Insert line numbers 1-17 in the left margin of each page, beginning with the abstract page. This facilitates providing line-by-line feedback. Indicate relevance by referring to theories, paradigms, or conceptual frameworks and briefly reviewing the existing knowledge base. Use person-first, non-sexist language in your writing, according to PMPA standards (pp. 61-76). APA (pp. 24-26) requires reporting both statistical significance and effect size, when appropriate.

Title page. This should contain the article title, a running head not exceeding 50 characters (including spaces), 3-5 keywords and full contact details of the authors. One corresponding author should be identified, whose e-mail address will be provided.

Abstracts. Authors submitting papers should note that abstracts are required (150-200 words). These should outline the questions investigated, the design, essential findings and main conclusions of the study.

Text. This should in general, but not necessarily, be divided into sections with the headings: Introduction, Methods, Results, Discussion, Conclusion, Applications. 

Tables and Figures. Tables and figures should be referred to text as follows: Figure 1, Table 1. The place at which a table or figure is to be inserted in the printed text should be indicated clearly on a manuscript. Each table and/or figure must have a legend that explains its purpose without reference to the text. Artwork submitted for publication will not be returned and will be destroyed after publication, unless otherwise requested. 

References. EPJ uses the APA system to indicate references in the text, tables and legends. The full references should be listed alphabetically, and presented following the text of the manuscript. 

2. Submission of Manuscripts

Manuscripts for consideration should be submitted electronically, as a single attachment to an e-mail, to the Journal’s editorial office at

3. Author-Side-Fees

The submission and peer-review of manuscripts are free of charge. After the positive evaluation of a paper, 80 Euros (€) have to be paid by the author –side so as that paper to be published. The details for the bank transfer are provided to the authors as soon as their manuscript is accepted for publication.

4. Copyright

It is a condition of publication that authors vest or license copyright in their articles, including abstracts, in SPA-Hellas. This enables us to ensure full copyright protection and to disseminate the article, and the EPJ, to the widest possible readership in print and electronic formats as appropriate. Authors may, of course, use the material elsewhere after publication providing that prior permission is obtained from SPA-Hellas. Authors are themselves responsible for obtaining permission to reproduce copyright material from other sources. The following form of words can be used in seeking an e-permission:



5. Supplementary Material


 These are guidelines for the submission of supplementary material to the journal including animations, movie files and sound files that can be accessed via the online edition and additional information, including indexes and calendars.

  • All files of supplementary material should be submitted in an uncompressed format that can be used universally on PCs and Macs. All files should be kept to a minimum size where possible.
  • Files should be submitted to the journal editor along with the manuscript. If required please supply a legend(s) or description(s) with the additional material to be mounted online and a reference to the file.
  • Authors who are unable to submit in any of the formats mentioned are advised to contact the publisher to discuss other options prior to submission.


Animations are limited to 30 seconds. Animations in the following forms (in order of preference) can be accepted from authors:

  • Video tape
  • AVI’s, QuickTime or Mpeg’s files
  • A sequence of still images

The following formats can be accepted:

  • All uncompressed formats widely used on PC, Mac, and UNIX
  • JPEG for coloured and compressed images (suffix .jpeg)
  • TIFF with a group IV compression for black and white compressed images (suffix .tiff)
  • EPS files for vector and a combination of vector and bitmap images (suffix .eps)
  • FLI and FLC format from AutoDesk.
Authors who submit animations are requested to provide the following information:  
  • Video tape - format used.
  • AVI, QuickTime or Mpeg files - version used, and system used for disk file creation.
  • Sequences of still images - format used, version, and system used for disk file creation.

Authors who are unable to supply the following: videotape, AVI, QuickTime or Mpeg file(s), may provide the publisher with a set of sequential still images. Note that an animated sequence will consist of 13 to 15 still images per second of animation; e.g., if an animated sequence is 10 seconds in duration, it is made up of 130 images. Animation should be mentioned in the text. Indicate an approximate location for the animation call-out in the margin.


Movie files should be submitted as AVI, QuickTime or Mpeg file. These should be uncompressed and in a universal format for PC or Mac. For ease of download, the recommended upper limit for the size of a single file is 10 Megabytes. When the size of a single file is bigger than this, some users may experience problems when downloading. Whenever possible, therefore this limit should be adhered to.

A file which is 1 gigabyte in size is very large and we would request that this file is revised to at least a quarter of the size (even at a quarter of the size it will be a relatively large file) if possible. The sizing of the file is vital for those users accessing the Internet via slow speed dial-up connections. In these circumstances large files are extremely lengthy to download which can be frustrating for users.


Sound files should be submitted as .WAV or .MP3 files. These should be uncompressed and in a universal format for PC or Mac.

  • All files should be kept to a minimum size where possible.
  • A legend or description of the sound file to be mounted online should be supplied to the editor.


Additional text files, such as legends, indexes and calendars should be supplied in a standard word processing document such as MS Word or PDF with the correct links/URL(s) if applicable. Standard positioning online for additional information is after the “Abstract” and before the “References” or on the “Table of Contents”, please state if you require different positioning online.

Print Email


All articles published in EPJ is licensed under a CC BY-NC-ND license.

Archive - Vol1, 2008


Volume 1
{1st issue}
{Special issue}

Archive - Vol2, 2009


Volume 2
{1st issue}

Archive - Vol3, 2010


Volume 3
{1st issue}


Archive - Vol4, 2011


Volume 4
{1st issue}


Archive - Vol5, 2012


Volume 5
{1st issue}


Archive - Vol6, 2013-2014


Volume 6
{1st issue}


Archive - Vol7, 2015


Volume 7
{1st issue}


Archive - Vol8, 2016


Volume 8
{1st issue}