Assessing the quality of a mental health measurement scale: the invariance analysis
Now, more than ever, the COVID-19 pandemic has highlighted the significance of mental health issues and the imperative to gain a deeper understanding of them. However, any investigation into such a phenomenon begins with its measurement. While clinical assessments are undeniably the most effective means of evaluating mental health, their implementation demands a considerable investment of time, human resources, and finances. Hence, it's quite common to resort to measurement scales as a practical alternative. But the question remains: just how reliable are these scales?