A Systematic Review of Modifications and Validation Methods for the Extension of the Keystroke-Level Model

Table 14

Quality assessment form.

Quality Assessment	Mark
	Yes	Partly	No
The primary study presents a clearly stated purpose for KLM extension	○	○	○
The primary study extends the KLM with new operators or modifications	○	○	○
The primary study clearly defines the research method used to extend the KLM	○	○	○
The extension study’s methodology is adequate and repeatable	○	○	○
The extension study clearly states the results and findings	○	○	○
The primary study clearly defines the research method used to validate the extended KLM	○	○	○
The validation study’s methodology is adequate and repeatable	○	○	○
The validation study clearly states the results and findings	○	○	○
The primary study presents a comparative analysis of the extended KLM against the original KLM	○	○	○
The paper has been cited by other authors and contributes to the literature	○	○	○
Quality score