When to go for new scale development in social science researches?

You can do so after you'd conducted rigorous literature review & can't find any survey questionnaire's scale that meet your current research requirement. But before you develop your new scale ensure you'd reviewed the literature rigorously & coined your operational definition for the construct / variable you want to measure / operationalize.

Han Ping Fung Thank you very much professor. If you have come across with any articles relevant to this particular area, please share...