In the miracle worker, helen is at first stubborn and disobedient but later reveals perseverance and intelligence. she is an example of a character. round flat

Why are low-lying lands more suitable for agriculture than hilly areas?

The u.s. intervened in korea and vietnam to stop the spread of

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.