The phrase "a considerable effort was made" is correct and usable in written English.
It can be used to indicate that a significant amount of work or resources were dedicated to a particular task or project.
Example: "In order to meet the deadline, a considerable effort was made by the entire team to ensure everything was completed on time."
Alternatives: "a significant effort was undertaken" or "a substantial effort was expended."
Nevertheless, a considerable effort was made to adequately deal with ethical considerations: for example, the anonymity of the respondents and their data was guaranteed by the use of codes, and a priori informed consent was obtained from all study participants.
These activities clearly suggest that a considerable effort was made to engage with relevant stakeholders and promote a coherent rationale for service redesign.
A considerable effort was made in the strontium ranelate trials to obtain transiliac bone biopsies to evaluate bone safety and assess the mechanism of action at the bone tissue level (Meunier et al 2002, 2004; Reginster et al 2005).
A considerable effort was made over the last years to propose a new TE hierarchical classification system (Wicker et al. 2007) that subdivided them into subclasses, orders, superfamilies, and families.
These data do not fulfill in all aspects the pre-conditions of scientific mixture toxicity concepts but are characterized by a considerable degree of data heterogeneity due to variation among laboratories, test protocols, test species, and measured endpoints even when a considerable effort is made to select toxicity data that were derived in similar tests (first data set).
Although under-reporting might not have been completely avoided, the validity of the responses concerning sexual experience was assessed using a random response technique and considerable effort was made to put the respondents at ease, particularly for sensitive questions.
Considerable effort was made to choose individuals growing under similar climatic and edaphic conditions within a site.
Considerable effort was made in the design of the implicit solver to ensure that the presence of anisotropy does not lead to a significant degradation in performance.
Considerable effort was made on the taxonomy and descriptive ecology of organisms on accessible shores: some examples include [22], [23] and more recently [24].
Considerable effort was made to obtain successful amplification from as many species as possible.
Considerable effort was made to protect women's identifying information and conform with state privacy legislation.
