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The most common measure of agreement for categorical data is the coefficient kappa. However, kappa performs poorly when the marginal distributions are very asymmetric, it is not easy to interpret, and its definition is based on hypothesis of independence of the responses (which is more restrictive than the hypothesis that kappa has a value of zero). This(More)
This paper analyzes the situation of on-line clinical psychology in Spain. Internet is becoming one of the principal tools for people to access to psychological information. Thus, users will be biased by the contents of the sites they contact to. Psychologists should pay attention to what kind of services are being spread through the Internet. To do this, a(More)
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