This paper discusses two conventions pertaining to the study of computer game addiction that are rarely discussed. Traditionally when addictions are assessed, it is not customary for the researcher to be concerned with whether or not the addiction causes harm; or in other words: whether the addiction adds more to the overall life quality than it subtracts. Similarly, it is not customary to ask ...

How strongly does humor (i.e., the construct-relevant content) in the Humor Styles Questionnaire (HSQ; Martin et al., 2003) determine the responses to this measure (i.e., construct validity)? Also, how much does humor influence the relationships of the four HSQ scales, namely affiliative, self-enhancing, aggressive, and self-defeating, with personality traits and subjective well-being (i.e., cr...

osteopaths, and others who practice manipulative therapy), it is not possible to bypass soft tissue to reach bony processes. Because these structures may be several inches below skin level (in my practice, I have commonly observed 4 inches below skin level in muscular adult men during back surgery, and sometimes more in cases of obesity), the question of the reliability of palpatory information...

In designing any causal study, steps must be taken to address both internal and external threats its validity. Researchers tend focus primarily on dealing with However, once they have conducted an internally valid analysis, that analysis yields established set of findings for the specific case in question. As future usefulness result, however, what matters is degree this paper we provide a form...

Clinical assessment relies on both construct validity, which focuses on the accuracy of conclusions about a psychological phenomenon drawn from responses to a measure, and case validity, which focuses on the synthesis of the full range of psychological phenomena pertaining to the concern or question at hand. Whereas construct validity is grounded in understanding causal influences of a distinct...

Interval Duration Logic, (IDL), is a dense time logic for specifying properties of real-time systems. Its validity is undecidable. A corresponding discrete-time logic QDDC has decidable validity. In this paper, we consider a reduction of IDL validity question to QDDC validity using notions of digitization. A new notion of Strong Closure under Inverse Digitization, SCID, is proposed. It is shown...

xperiments E show significant demobilizing and alienating effects of negative advertising. Although internally valid, experiments may have limited external validity. Aggregate and survey data offer two ways of providing external validation for experiments. We show that survey recall measures of advertising exposure suffer from problems of internal validity due to simultaneity and measurement er...

In the development of distance learning, advances in cognitive science merge with new technology to deliver instruction worldwide. However, one major difficulty in evaluating the efficacy of these tools is determining which elements of instruction truly lead to observed changes in student performance. The purpose of this paper is to briefly review current use of various research methods for eva...

Cognitive Science research is hard to conduct, because researchers must take phenomena from the world and turn them into laboratory tasks for which a reasonable level of experimental control can be achieved. Consequently, research necessarily makes tradeoffs between internal validity (experimental control) and external validity (the degree to which a task represents behavior outside of the lab)...