which procedures were followed in this lab to decrease experimental error? check all that apply. using only…

which procedures were followed in this lab to decrease experimental error? check all that apply. using only two types of seeds, both from the same source having one student count every sprout in every quadrat using adjacent plots of land for both groups increasing the sample size by combining data from multiple groups repeating the experiment indoors under growth lights measuring plant height the same way and at the same time for both groups

which procedures were followed in this lab to decrease experimental error? check all that apply. using only two types of seeds, both from the same source having one student count every sprout in every quadrat using adjacent plots of land for both groups increasing the sample size by combining data from multiple groups repeating the experiment indoors under growth lights measuring plant height the same way and at the same time for both groups

Answer

Brief Explanations:

  1. Using only two types of seeds from the same source reduces variability from seed - origin differences.
  2. Having one student count all sprouts ensures consistency in counting method.
  3. Using adjacent plots may introduce confounding environmental factors, not reduce error.
  4. Increasing sample size by combining data reduces sampling error.
  5. Repeating the experiment indoors with controlled conditions reduces environmental variability.
  6. Measuring plant height the same way and at the same time for both groups ensures consistency in data collection.

Answer:

  • using only two types of seeds, both from the same source
  • having one student count every sprout in every quadrat
  • increasing the sample size by combining data from multiple groups
  • repeating the experiment indoors under growth lights
  • measuring plant height the same way and at the same time for both groups