"the study spans" is an idiomatic and correct usage in written English
You would use it when referring to a contemporary study that includes or covers a lengthy period of time. For example, "The study spans ten years of research."
The study spans a timeframe of nine years.
Because the study spans all of the manufacturing sectors (SIC 20 through 39), these conclusions should help firms in any industry revisit their priorities in terms of the relative efforts in design management and process management.
First, the study spans five decades, and data collection and measurement are unlikely to be uniform.
The study spans health services in both England and Wales; both countries have separate research governance approval strategies and processes.
The study spans the continuation of the Medicare and Medicaid EHR Incentive Programs ("meaningful use") [ 44] and the introduction of the Affordable Care Act and Accountable Care Organizations (ACOs).
The US study and our study are not, however, strictly comparable as the study spans differed, other cultural and social differences are present, and Québec CLSCs represent areas of health service delivery while US counties represent areas of local governance.
The records in the dataset produced for the study span the years 1945 1969, the timeframe corresponding to what this researcher earlier identified as the first wave of public discourse on nuclear waste11.
Eventually the scope of the study spanned London, Stockholm, Copenhagen, Hamburg, Oslo, and Helsinki".
Over the course of the 16 years during which the study spanned, around 20percentt of couples who had children via assisted reproductive treatment separated or divorced vs. 22percentt who did not.
Nearctic-Neotropic migratory species were excluded because the study spanned the period of autumn migration at the site, though the hurricane likely affected the suitability of the site for these birds also [15].
Therefore, the study spanned the full cycle of the epidemic.
