Measuring validity is important because it determines the impact of research. Validity is defined as “an integrated, evaluative judgment of the degree to which empirical evidence and theoretical rationales support the adequacy and appropriateness of inferences and actions based on test scores or other modes of assessment” (Salkind, 2010, p.1).
There are many criteria of rigorous research, for example, internal validity, external validity, objectivity of observer, replicability, and reliability (Hernon, 1991). Among various forms of validity, in particular, external validity refers to the extent to which study findings are generalizable to a population, while internal validity relates to whether a study measures what it purposes to do (Hernon, …show more content…
In addition, our interface design may not be applicable for retrieving medical images X-ray, and other multi-media information. According to Dyrvig et al. (2014), it is important to aware that “how differences between study setting and implementation setting change the intervention outcomes can result in an evidence based checklist on external validity” (p.963). The laboratory environment of my study was designed as comfortable as possible in order not to disturb participants since intrusiveness of eye-tracker and lab facility can play a role in this research. It is important for a researcher to consider any checklist of possible threats to external validity which are related to interactive effects involved in the experimental treatment or some other variables affecting the degree of generalizability of the study. Dyrvig et al. (2014) argued that “such a checklist would be of high value to the society in terms of limiting resources spent on duplication of research across settings and improving public health through more rapid decision making and implementation of effective interventions” …show more content…
To overcome this problem, we need to provide external validity data for systematic reviews and meta-analyses (Steckler & McLeroy, 2008). I agree with their conclusion that each study has a need for reporting external validity. Thus, there is an argument that “reviews indicate that reporting on external validity is provided far less often than is reporting on other methodological issues” (Steckler & McLeroy, 2008, p.10). In the same regard, Glasgow et al. (2004) addressed the same issue that “in general, these biases limit the ability to establish the external validity of results, a key element for judging the potential effectiveness of interventions and for translating research to practice”
There are many criteria of rigorous research, for example, internal validity, external validity, objectivity of observer, replicability, and reliability (Hernon, 1991). Among various forms of validity, in particular, external validity refers to the extent to which study findings are generalizable to a population, while internal validity relates to whether a study measures what it purposes to do (Hernon, …show more content…
In addition, our interface design may not be applicable for retrieving medical images X-ray, and other multi-media information. According to Dyrvig et al. (2014), it is important to aware that “how differences between study setting and implementation setting change the intervention outcomes can result in an evidence based checklist on external validity” (p.963). The laboratory environment of my study was designed as comfortable as possible in order not to disturb participants since intrusiveness of eye-tracker and lab facility can play a role in this research. It is important for a researcher to consider any checklist of possible threats to external validity which are related to interactive effects involved in the experimental treatment or some other variables affecting the degree of generalizability of the study. Dyrvig et al. (2014) argued that “such a checklist would be of high value to the society in terms of limiting resources spent on duplication of research across settings and improving public health through more rapid decision making and implementation of effective interventions” …show more content…
To overcome this problem, we need to provide external validity data for systematic reviews and meta-analyses (Steckler & McLeroy, 2008). I agree with their conclusion that each study has a need for reporting external validity. Thus, there is an argument that “reviews indicate that reporting on external validity is provided far less often than is reporting on other methodological issues” (Steckler & McLeroy, 2008, p.10). In the same regard, Glasgow et al. (2004) addressed the same issue that “in general, these biases limit the ability to establish the external validity of results, a key element for judging the potential effectiveness of interventions and for translating research to practice”