( ( ( ( ( ( ( ( ( Identify factors ) , ) treatments ) , ) ( response variables ) ) , ) and ) ( ( experimental units ) ( in ( an experiment ) ) ) ) . )
(ROOT (NP (NP (JJ Identify) (NNS factors)) (, ,) (NP (NNS treatments)) (, ,) (NP (NN response) (NNS variables)) (, ,) (CC and) (NP (NP (JJ experimental) (NNS units)) (PP (IN in) (NP (DT an) (NN experiment)))) (. .)))
Identify factors, treatments, response variables, and experimental units in an experiment.
(ROOT (S (NP (NP (DT The) (NNS values)) (PP (IN of) (NP (JJ independent) (NNS variables)))) (VP (VBP are) (VP (VBN controlled) (PP (IN by) (NP (NP (DT the) (NN experimenter)) (PP (IN over) (NP (NP (DT the) (NN course)) (PP (IN of) (NP (DT an) (NN experiment))))))))) (. .)))