Submission of Manuscripts

All contributions and general correspondence regarding editorial matters should be addressed to the Editor and sent to the Editorial Office. Manuscripts submitted to the journal must represent reports of original research. Manuscripts will be sent for anonymous review either by members of the editorial board, or by individuals of similar standing in the field. Authors are requested to submit up to three suggested reviewers for the manuscript. Authors will be notified of acceptance, rejection or the need for revision within 6 weeks. When a manuscript is returned to the corresponding author for revision, it should be returned to the Editors within 2 months, otherwise it may be considered withdrawn. Accepted manuscripts will appear in the journal within 3 months, whenever possible.

Authors will be asked before publication to assign a reproduction right licence for their manuscript to the International Society for Twin Studies. After publication, authors are permitted to upload the original Word version of their accepted article on any open access repository or archival website with an approriate link to the definitive online published version. tionA

All manuscripts should be in English presented electronically in Word or Word Perfect. (Otherwise, please use one side only of American 8.5 by 11 inches or A4 paper). All sections of the manuscript should be double-spaced with one inch margins on all four sides. Please subdivide manuscripts into the following sequence of sections: Title page, Abstract, Introduction, Materials and methods, Results, Discussion, Acknowledgement, References, Tables, Figure legends. Number each page (title page is 1). Please indicate the position of each figure and table in the text using the words “Figure X about here”.

In general, the formatting requirements are those recommended by the American Psychological Association (APA), especially for references: American Psychological Association. (2001). Publication manual of the American Psychological Association (5th ed.). Washington, DC: Author. SEE BELOW for further details.

Effective from October 2006, please note that manuscripts will be charged publication charges of:

ISTS MEMBERS (first/last author) - AUD100.00 per printed page for each page NON-ISTS MEMBERS (first/last author) – AUD150.00 per printed page for each page

Included in this publication cost as of 2007 is open access for all papers over one year old. Authors may purchase immediate online access at the time of publication for their papers for an additional AUD200. Please contact the editorial office for more information. In exceptional circumstances, the Editor may consider reducing or waiving these charges. Please contact Professor Nick Martin directly.

Scholarly reviews of topics within the scope of Twin Research will be considered for publication after paper review. Please send a one page letter of inquiry to the Editor before preparing your manuscript, to make sure that a similar review is not in press.

Proofs
Manuscripts will be scheduled for publication upon receipt of proofs. Extensive changes to the proofs will result in publication delay. Important new information that has become available between acceptance of the manuscript and receipt of the proofs may be inserted as an Addendum in proof with the permission of an Editor. Proofs must be checked immediately for typographical errors and returned to the publisher along with the copyright assignment form. Authors will receive a PDF offprint of their article with a licence to reproduce up to 100 copies free of charge.

Title Page/keywords
The title should be as brief as possible with no abbreviations. Include each author’s initials and surname and complete addresses in English, including department, institution, city with postal code and country (indicating clearly which author is at which address.) A corresponding author should be indicated with telephone, fax numbers and e-mail address provided. Please also provide a running title of not more than 50 characters.

Abstract
The second page of the manuscript should contain only an abstract in a single paragraph of not more than 200-250 words. Abbreviations and reference citations should be avoided.

Introduction
The introduction should assume that the reader is knowledgeable in the field and should therefore be a brief as possible and should not exceed 1500 words. Do not use the heading “Introduction”.

References
References follow the general format advocated by the Publication Manual of the American Psychological Association 5th ed. (American Psychological Association [APA], 1995). However, in the text, et al. should be used for references with three or more authors, as follows:

• One author: (Jones, 1981)
• Two authors: (Jones & Smith, 1981)
• Three or more authors: (Jones et al., 1981).

At the end of the manuscript references should be listed (double-spaced) in alphabetical order. All authors should be listed, and full periodical titles should be used. First and last page numbers for each reference should be provided. Abstracts and letters must be identified as such.

Abbreviations
These should be defined in parentheses after their first mention in the text, except for the use of accepted abbreviations, such as SI Symbols, which need not be defined. Use generic names when referring to drugs; trade names may be given in parentheses at first mention.

Tables
All tables should be submitted in Word format, numbered consecutively with Arabic numerals and placed at the end of the manuscript after the references. Please indicate in the manuscript the most appropriate position for each table using the words "Table X about here". Tables should be self-explanatory and include a brief descriptive title. Footnotes to tables indicated by lower case letters are acceptable, but they should not include extensive experimental detail.

lIllustrations, figures, photographs and mathematics:
Electronic submission of artwork

To ensure optimum quality, please follow these guidelines when submitting artwork via e-mail or disk

If your artwork does not meet these guidelines, it may be returned to you.