Fig. 1
(Adapted from Huang B, Fan W & Zhu Y, 2022, p. 202)
Diagram of the basic approach to identifying causal relationships using the instrumental variable method.
Fig. 1 | 樱花视频
(Adapted from Huang B, Fan W & Zhu Y, 2022, p. 202)
Diagram of the basic approach to identifying causal relationships using the instrumental variable method.