Prescreening

Prescreening

Prescreening with Sona Systems allows research coordinators to set up customized questionnaires to ensure only qualified participants can view and sign up for studies. The prescreen may include various measures, batteries, and inventories, and can even compute sum or mean scores for across a set of measures, including reverse scales. Researchers can then restrict participation in their studies to only those with specific attitudes, biases, or conditions. The system will hide or display studies for eligible participants based on these restrictions. Sona Systems offers advanced online prescreening to:

• Eliminate selection bias as participants are unaware of prescreen restrictions on a study
• Establish whether there are sufficient qualified participants in the pool to make data collection worthwhile
• Set up specialized studies with specific qualifications and conditions for sign up
• Understand participants through easy access to participant prescreen data before and after the study
• Contact qualified participants to invite them to a study, while concealing the participants' identity from the researcher