Answer:
1. Participants are randomly assigned to intervention or control
Explanation:
Quasi-experimental study -
It is the study to estimate the impact of an intervention on the target population with any random assignment .
This Quasi-experimental research shares , the similarities with the randomized controlled trial or the traditional experimental design .
But in this study , there is random assignment for the control or treatment .
Hence , from the options given in the question , the correct is ( 1 ) .
