The phrase "a more rigorous methodology" is correct and usable in written English.
It can be used when discussing the need for a stricter or more thorough approach to research or analysis.
Example: "In order to achieve more reliable results, we must adopt a more rigorous methodology in our study."
Alternatives: "a stricter approach" or "a more thorough method."
Based on a much larger dataset and a more rigorous methodology than had been used before, they found that the effect of schooling does not vary systematically by establishment size.
Future research could benefit from a more rigorous methodology and better study reporting.
Compared to previous studies of acupuncture in the treatment of herpes zoster, this study has a more rigorous methodology and will include more patients.
This shortcoming needs to be addressed by a further study employing a more rigorous methodology (i.e., two interviewers independently conducting ASIA interviews).
As for the third evidence mentioned above, we reanalyzed the phylogeny of the entire Pax4/6/10 class by employing a more rigorous methodology in light of the standard procedure of molecular phylogenetics (Anisimova et al. 2013).
Further trials using larger sample sizes and a more rigorous methodology are needed to evaluate different forms of exercise on improving strength and ROM and reducing stiffness in patients with hand OA.
To determine which treatment is the most effective for early correction of skeletal open bite with a reliable scientific evidence, RCTs with sufficient sample size and more rigorous methodology are required.
More recent studies, with broader samples and more rigorous methodology, have found that, at least in the first years after a suicide, many children show surprising resilience.
Polls conducted using more rigorous methodology – rather than the self-selecting online polls Trump has highlighted – have ruled that Clinton "won" the second debate on Sunday night.
More rigorous methodology is required to improve the quality of future studies including in the main multicentre randomised designs and improved reporting according to CONSORT criteria.
