Improvement of Open Source Software Usability: An Empirical Evaluation from Developers' Perspective

Table 4

Multiple linear regression analysis of the research model.

Model coefficient name	Model coefficient	Coefficient value	𝑡-value
Users’ requirements	f1	0.277	2.800*
Usability experts opinion	f2	−0.006	−0.045**
Incremental design approach	f3	0.116	1.218*
Usability testing	f4	0.111	1.097*
Knowledge of UCD methods	f5	0.355	3.740*
Constant	f0	1.796	1.003*

*Significant at 𝑃<.05. **Insignificant at 𝑃>.05.