What is the essential feature of data stored by geographical information systems? OA.
The data relates to land use.
OB.
The data is linked to locations.
OC.
The data relates to geographical formations.
OD
The data is linked to a specific time.

Chris would like to conduct a study on the effectiveness of a new substance-abuse treatment program. he has a sample of participants go through the program and he uses as a comparison group people who did not volunteer for the program but were eligible. chris has used a(n) design for his study.

The primary purpose of a certificate of confidentiality is to: allow law enforcement to investigate abuse cases.protect researchers from disclosing conflicts of interest.prevent subjects from knowing the purpose of a study.protect identifiable research information from compelled disclosure.

Government run farms are known as a. pastoral b. collectives c. irrigation d. dalits