I tēnei momo whakamātau, ka tūhurangia te pānga o ētahi taurangi. Kotahi anake te taurangi e rāwekewekea, ko ērā atu o ngā taurangi ka noho pūmau. Mā te noho pūmau o ērā atu o ngā taurangi e kīia ai he tōkeke, he tika te whakamātau i te taurangi e tūhurangia ana.
This type of test or experiment investigates the relationship between variables. One variable is manipulated and the other variables are kept constant. Keeping the other variables constant ensures a fair test of the variable being investigated.
