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Open Access Publications from the University of California

Author Guidelines


The International Journal of Comparative Psychology (IJCP) publishes studies on the evolution and development of animal behavior, including humans. Articles based on experimental or descriptive research procedures, carried out in laboratory, semi-natural, or natural settings, and involving mechanistic, developmental, functional-adaptive, or evolutionary theoretical approaches are welcome. Articles may include a single study or a series of related studies. Papers developing original theoretical models of behavior and substantial reanalysis of published data will also be considered. Articles reviewing the literature in a particular area of research will be occasionally accepted for consideration when the author has demonstrated significant contributions to the topic under review. Short letters to the editor focusing on relevant issues under discussion in the literature or on forgotten issues that deserve renewed attention will be considered. In addition, authors are encouraged to submit audio-visual material both as supplemental material and as stand-alone submissions. Such material needs to provide either educational value (e.g., demonstration of an experimental procedure) or should encourage discussion of critical issues of comparative psychology.

APA Format:

Prepare your manuscripts following APA format. Consult the last edition of the APA Publication Manual (2020). A quick reference to recent changes may be found in the APA web site:


Manuscripts can should be submitted in APA format (Microsoft Word files, including figures) and the inclusion of DOIs for each reference (if available).


The manuscript should have a cover page with the full title, author(s) name(s), and institutional affiliation(s). Indicate explicitly the name, address, and e-mail address of the author with whom the Editor may correspond concerning the article. Most of the review process is done via the escholarship system or e-mail, so including an e-mail address is of considerable importance.

In a cover letter include the names and e-mail addresses of three (3) potential reviewers for your article. Indicate also whether you prefer anonymity in the review process.

Ethical Issues:

It is recommended that authors follow current APA ethical guidelines (see

Especially relevant are the guidelines about research and publication, care and use of animals, and treatment of human participants in research. It is expected that researchers comply with these norms independently of, and in addition to, compliance with other regulations enforced locally by governmental agencies.

Accepted Manuscripts:

Upon final acceptance, the author(s) will be required to send a computer file prepared in Microsoft Word. Figures must be prepared in Microsoft Excel or a high resolution JPEG format. Authors will be able to download a PDF file with the final version for electronic distribution of their paper.

Submission Preparation Checklist

As part of the submission process, authors are required to check off their submission's compliance with all of the following items, and submissions may be returned to authors that do not adhere to these guidelines.

  1. The submission has not been previously published, nor is it before another journal for consideration (or an explanation has been provided in Comments to the Editor).
  2. The submission file is in OpenOffice or Microsoft Word document file format. Figures can be embedded in the main text or submitted as supplementary material.
  3. The text adheres to the stylistic and bibliographic requirements outlined in the Author Guidelines, which is found in About the Journal (APA style, most importantly) and the inclusion of DOIs for each reference (if available).

Copyright Notice

I (hereafter called the “Author”) grants the International Journal of Comparative Psychology (hereafter called the “Journal”) on behalf of The Regents of the University of California (hereafter called “The Regents”) the non-exclusive right to make any material submitted by the Author to the Journal (hereafter called the “Work”) available in eScholarship in any format in perpetuity.

The Author and the Journal agree that eScholarship will publish the article under a Creative Commons Attribution license, which is incorporated herein by reference and is further specified at . A brief summary of the license agreement as presented to users is listed below:

Anyone is free:

  • to copy, distribute and transmit the work;
  • to adapt the work;

Under the following conditions:

  • Attribution — The person copying, distributing, transmitting or adapting the work must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that he or she endorses you or your use of the work).

The Author warrants as follows:

(a) that the Author has the full power and authority to make this agreement;

(b) that the Work does not infringe any copyright, nor violate any proprietary rights, nor contain any libelous matter, nor invade the privacy of any person or third party; and

(c) that no right in the Work has in any way been sold, mortgaged, or otherwise disposed of, and that the Work is free from all liens and claims.

The Author understands that once the Work is deposited in eScholarship, a full bibliographic citation to the Work will remain visible in perpetuity, even if the Work is updated or removed. The Author understands that once a peer-reviewed Work is deposited in the repository, it may not be removed.

For authors who are not employees of the University of California

The Author agrees to hold The Regents of the University of California, the California Digital Library, the Journal, and its agents harmless for any losses, claims, damages, awards, penalties, or injuries incurred, including any reasonable attorney's fees that arise from any breach of warranty or for any claim by any third party of an alleged infringement of copyright or any other intellectual property rights arising from the Depositor’s submission of materials with the California Digital Library or of the use by the University of California or other users of such materials.

Privacy Statement

The names and email addresses entered in this journal site will be used exclusively for the stated purposes of this journal and will not be made available for any other purpose or to any other party.

ISSN: 2168-3344