What occurred in the late 1960s to make the Aral Sea dry up?

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.

Each of the letters on the map above marks a body of water in southeast asia. which two letters represent gulfs

The child uses the parent as a base from which to explore her world in which attachment style?