'ascertain causality' is correct and usable in written English.
You can use it when you are trying to determine the cause of something. For example, "We need to ascertain causality before we can decide how to address this issue."
This study provides a comprehensive overview of global policies and ARV market trends suggesting certain causal relationships, but our descriptive methods cannot ascertain causality or pinpoint the impact of a given intervention on the market.
Watching neurologists try to ascertain causality is as much fun as watching an infant try to find the orchestra in the radio.
To ascertain causality, we would need to perform prospective EWAS over the life course, consider incident cases, and/or consider randomization methods [51] as additional validation.
Finally, the cross-sectional design of the study means it is not possible to ascertain causality: we cannot infer whether positive attitudes and MMR invitation receipt caused catch-up MMR uptake, or whether catch-up uptake created more positive attitudes and heightened parents' awareness of/memory for having received an invitation.
As with all observational studies, we cannot ascertain causality.
However, cross sectional studies cannot ascertain causality [ 32].
Ascertaining causality that involvement in EIA processes influences or effects organisational learning and transformation is a challenge in the face of other societal events.
Despite difficulty in ascertaining causality, the potential for novel factors of large effect associated with T2D justify the use of EWAS to create hypotheses regarding the broad contribution of the environment to disease.
The cross-sectional design of our investigation precludes us from ascertaining causality.
In addition, panel surveys would alleviate the limitations of cross-sectional studies in ascertaining causality and associations with NCDs and explore the influence of religion on NCDs.
This may help ascertain causal pathways and disentangle issues of reverse causality between psychological factors and physical activity.
