Three different observational systems are ...

[segrsyd]

Three different observational systems are ___________________ ___________________ __, ___________________ ___________________ ____________, and ___________________ ___________________ __________________.
 
  Fill in the blank(s) with the appropriate word(s).

Question 2

Key ingredients to all observational systems are ___________________ _, ___________________ _, ___________________ _, and ________________.
 
  Fill in the blank(s) with the appropriate word(s).

[lindahyatt42]

Answer to Question 1

ANSWER:
Any three of these: narratives, time sampling, event sampling, modified study techniques, experimental procedures, clinical method

Answer to Question 2

ANSWER:
focus; system; tools; environment