Cognition about cognition: Do scales from different fields assess metacognition alike?

Metacognition is a construct of long-lasting interest in multiple fields of research. Yet, exchange between fields has been limited, leaving it an open question to what extent this construct can be conceptualized as a general cognitive entity. We thus implemented a cross-disciplinary analysis investigating if self-report scales from four fields tap into the same underlying construct and give rise to a general factor of metacognition (M). In a preregistered online study ( N = 661) and utilizing an analytical approach to mitigate overfitting, a systematic model comparison showed that a bifactor model including a general factor of metacognition performed best. This general factor explained 61 % of the systematic variance, suggesting that there exists an important general component of metacognition. We will discuss how the different subscales of the four scales relate to one another and to M, elaborate on a potential jingle-fallacy in metacognition research, and give recommendations on which subscales to use to best tap into M. In sum, our integrative approach contributes to a better understanding of metacognition and how to best measure it.