The phrase "was developed since" is correct and usable in written English.
You can use it to refer to something that has been created or established over a period of time. For example, "The company's safety protocols were developed since the 1980s."
This has implications for the generalisability of a questionnaire, even within the population in which it was developed, since by necessity the development stage of a risk score has to take place in a different temporal period to the practical application of the score in a clinical setting.
"What we wanted to do was to go back and look at all of the technology that was developed since the beginning of the S.D.I.O.," Colonel Lehner said, in order to "see whether any of this technology would be applicable to a missile defense system now".
Lunetta (Mantova) was developed since the Nineteen Sixties as a working-class neighborhood, and subsequently became a dwelling place for transiting individuals and families.
In contrast, the genome presented here consists of 9064343 bp compared to the previously reported 9059191 bp, which might be due to the larger amount of sequence generated, but it is also possible that this is caused by the improved assembly algorithms that was developed since the first genome assembly was performed and that were employed for our data analysis.
However, no influenza vaccine formulated with this type of emulsions was developed since they are crowded in the oily phase and causing local reactions at the site of injection into animals.
A self-assessment tool was developed since these can usually be used very cost- and time-effectively.
All of the third-party apps have been developed since Apple unveiled its ARKit software at its WWDC developers conference 12 weeks ago.
The concept of a health-promoting school has been developed since the 1980s and the World Health Organization has implemented programs both in developed and developing countries [17].
Prefabrication has been developed since the 1970s.
The show's pattern has been developed since Barnett left the Telegraph at the end of April.
"Southern Sudan has never been developed since its creation," he said.
