Studies were often based on low-dose-rate Cobalt-60 systems.
Traditionalist studies were often descriptive in nature, used mostly qualitative methods, and usually did not use broad theories to ground their observations in a larger theoretical perspective.
Improved fertilizer management is one of the few options to enhance cropping system productivity but related results from previous studies were often disappointing and sometimes contradictory, possibly due to the large variability of soil and water resources.
But that could be explained by the fact that the cage-free henhouses in the studies were often newer and less likely to harbor the rodents that can spread salmonella.
These studies were often done by advocates for living wages.
Unsurprisingly, such studies were often conducted in the field of "Computer Science".
Candidate gene association studies were often negative and positive results were often not replicated or replication failed.
For example, Ebbinghaus argues that those, mainly quantitative studies, were often limited to countries that fitted well to conventional regime theories [130].
Furthermore, the sample sizes of existing studies were often small, making it difficult to draw valid inferences from the reported findings.
European studies were often published in IJHRM and HRMJ and studies employing samples from Asia and Europe were most often published in IJHRM.
Additionally, psychiatric disorders in these studies were often evaluated using rating scales, such as Beck Depression Inventory, Self-Rating Depression Scale, Pain Anxiety Symptoms Scale and Self-Rating Anxiety Scale, rather than a clinical diagnosis by a psychiatrist.
