( ( ( Evaluate ( that method ) ) ( in ( terms ( of ( ( ( internal validity ) and ) ( external validity ) ) ) ) ) ) . )
(ROOT (S (VP (VB Evaluate) (NP (DT that) (NN method)) (PP (IN in) (NP (NP (NNS terms)) (PP (IN of) (NP (NP (JJ internal) (NN validity)) (CC and) (NP (JJ external) (NN validity))))))) (. .)))
Evaluate that method in terms of internal validity and external validity.
(ROOT (S (NP (NNS Amphibians)) (ADVP (RB sexually)) (VP (VB reproduce) (PP (IN through) (NP (JJ external) (CC or) (JJ internal) (NN fertilization)))) (. .)))