SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
© Thomson Reuters Journal Citation Reports 2015
To calculate the five year Impact Factor, citations are counted in 2014 to the previous five years and divided by the source items published in the previous five years.
© Journal Citation Reports 2015, Published by Thomson Reuters
The Journal welcomes contributions to the understanding and treatment of psychopathology. Such contributions may stem from various theoretical perspectives, such as learning theory, cognitive science, social psychology, developmental psychology, etc. The Journal primarily focuses on experimental tests of psychological approaches to psychopathology, though contributions from medicine, biology, sociology, or epidemiology may be published. The same holds for non-experimental approaches, which may occasionally be published if deemed relevant for the field of experimental psychopathology. Papers to be published generally focus on:
•Theoretically or clinically relevant differences between specific patient groups and other groups, if experimentally tested;
•Mechanisms that cause, perpetuate or reduce disorders;
•Diagnostic or therapeutic procedures
Participants in the studies may be patients, healthy subjects, or animals, depending on the relevance of the subject characteristics for the question to be answered.
Clinical trials (RCTs and others) should be registered in an official trial register and the registration number should be reported. These studies should include a flow diagram according to the most recent CONSORT guidelines and a CONSORT checklist should accompany the submission. See http://www.consort-statement.org for the guidelines and forms.
Studies testing hypotheses on characteristics of a disorder should not only include a non-patient control group, but also an appropriate clinical control group, to assess the specificity of the effect. We cannot guarantee acceptance of studies missing an appropriate clinical control group.
Case studies, open trials, and pilot studies may be considered for publication in the Journal if they are unusually innovative.
Consecutive case series with appropriate designs (i.e., contrasting at least two conditions; e.g. multiple baseline design) and appropriate statistical analyses are considered for publication.
Replications are essential in science and are, to the present editor's opinion, often undervalued. Short reports of attempts to replicate experimental studies, whether successful, or failed, and whether applied or fundamental, are considered for publication, if appropriately powered. The maximum number of words is 2500 for these reports.
All submissions will first be screened on the degree to which they match the Aims and Scope of the Journal.