Chrome-extension:///pages/win. html Who is the artist of the image below?
The Santa Trinita Maesta. Arches frame Jeremiah, Abraham, David, and Isaiah. Jeremiah and Isaiah look up to a child held by its mother surrounded by angels.
a.
Giotto
b.
Cimabue
c.
Bondone
d.
none of the above

Using mr smith and his id, identify two potential internal validity threats that might affect the a—b design. tell me how that threat might impact conclusions in the a—b design. note #1: you cannot use maturation (since i already did that one for note #2: there are some mr smith id threats that won’t have much impact in a single case design.