The 2009 Copenhagen summit was designed to revamp and update the ______ written a dozen years before.

Afiya wanted to assess the reliability of students' observations of children's aggressive behavior so she had two students observe 100 behaviors displayed by each of 50 children while engaged in play

After viewing each behavior the students recorded the behavior as being aggressive or nonaggresive. Afiya then computed the percentage of times the two students agreed on their assessment of each behavior. Afiya used what method of assessing reliability? a. interobserver agreement b. Cronbach's alpha c. internal consistency reliability d. test-retest reliability

The first line of a paragraph should be indented ___________________

a) only for the first paragraph b) 2 spaces c) 5 spaces d) for only the first paragraph on each page