( YOU ( ( DO ( ( NOT HAVE ) ( TO ( DO ( ( THE EXPERIMENT ) ( ( Make sure ) ( that ( you ( identify ( ( ( ( ( ( ( ( ( ( ( the ( independent variable ) ) , ) ( the ( dependent variable ) ) ) , ) ( the ( control group ) ) ) , ) ( the ( experimental group ) ) ) , ) ( the ( control variables ) ) ) and ) ( how ( you ( ( will randomly ) ( ( select ( your subjects ) ) ( for ( the experiment ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP YOU)) (VP (VBP DO) (S (NP (NNP NOT) (NNP HAVE)) (VP (TO TO) (VP (VB DO) (S (NP (DT THE) (NN EXPERIMENT)) (VP (VB Make) (ADJP (JJ sure)) (SBAR (IN that) (S (NP (PRP you)) (VP (VB identify) (UCP (NP (NP (DT the) (JJ independent) (NN variable)) (, ,) (NP (DT the) (JJ dependent) (NN variable)) (, ,) (NP (DT the) (NN control) (NN group)) (, ,) (NP (DT the) (JJ experimental) (NN group)) (, ,) (NP (DT the) (NN control) (NNS variables))) (CC and) (SBAR (WHADVP (WRB how)) (S (NP (PRP you)) (VP (MD will) (ADVP (RB randomly)) (VP (VB select) (NP (PRP$ your) (NNS subjects)) (PP (IN for) (NP (DT the) (NN experiment))))))))))))))))) (. .)))
YOU DO NOT HAVE TO DO THE EXPERIMENT Make sure that you identify the independent variable , the dependent variable , the control group , the experimental group , the control variables and how you will randomly select your subjects for the 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))))))))) (. .)))