researcher will either use random assignment or matching What do random assignment and matching have in common? They are both designed to create equivalent groups of participants. Random assignment is to random selection as _____ is to _____
1 An unarmed guard from 21st Sentry Security in Dallas-Fort Worth typically costs $14 per hour, while an armed guard starts at $18 per hour. 2  The time of day also affects pricing. 3  Security guards working at a late-night party in the city may cost $30-$50 per hour, for example.
The average cost of home security varies depending on your provider. ADT Security offers prices starting as low as $36.99 per month. To learn more about the average cost of home security and ADT pricing click here.he average cost of home security varies depending on your provider. ADT Security offers prices starting as low as $36.99 per month. To learn more about the average cost of home security and ADT pricing click here.