Natasha Oslinger
Experimental Design Homework Assignment
Biology 105
8-23-16
Part One :
Questions:
What effect does the use of fertilizer have on tomato plants?
Hypothesis:
A higher amount of fertilizer used in the growth of tomato plants will yield larger plants.
Independent Variable:
The amount of soil used.
Dependent Variable:
The growth of the plants.
Control Group:
The tomato plant without any soil is the control, but, the plant with one gram of soil could arguably be the control considering the tomato plant without any soil will die no matter what. Having a control like this would throw off the results of the experiment.
Experimental Group:
The tomato plants with soil.
Constants (controlled variables):
The type of soil, the size of the soil container, sunlight amount, and water amount.
What types of measurements can Researcher X make on the plants to determine how they did in different amounts of fertilizer?:
The researcher could measuring things such as plant height, plant stalk girth, branch size and number, leaf size and number, number of fruit yielded, condition of fruit yielded, or color of the plant.
Part Two:
Doctor X is conducting a trial on the effectiveness of a new medicine meant to delay the development of early onset Parkinson's disease on fit, considerably healthy women in their 40s. Doctor X finds a group of 20 women who fit these conditions and administer an intravenous IV of medicine twice a week to the group. 10 of the women in the group are given a placebo drug without their knowledge, and although the liquid in their IV’s looks the same as the other medicine, it is infact different.
Questions:
How does drug X effect early onset Parkinson's on fit, considerably healthy, women in their 40s?
Hypothesis:
This experimental drug will work completely effectively on women it is actually administered to.
Independent Variable:
The drug administered.
Dependent Variable:
The development of Parkinson's.
Control Group:
The placebo group.
Experimental Group:
The women who have been administered the drug.
Constants (controlled variables):
The consistency of the medicine and the similarities of the people taking the drug.
Experimental Design Homework Assignment
Biology 105
8-23-16
Part One :
Questions:
What effect does the use of fertilizer have on tomato plants?
Hypothesis:
A higher amount of fertilizer used in the growth of tomato plants will yield larger plants.
Independent Variable:
The amount of soil used.
Dependent Variable:
The growth of the plants.
Control Group:
The tomato plant without any soil is the control, but, the plant with one gram of soil could arguably be the control considering the tomato plant without any soil will die no matter what. Having a control like this would throw off the results of the experiment.
Experimental Group:
The tomato plants with soil.
Constants (controlled variables):
The type of soil, the size of the soil container, sunlight amount, and water amount.
What types of measurements can Researcher X make on the plants to determine how they did in different amounts of fertilizer?:
The researcher could measuring things such as plant height, plant stalk girth, branch size and number, leaf size and number, number of fruit yielded, condition of fruit yielded, or color of the plant.
Part Two:
Doctor X is conducting a trial on the effectiveness of a new medicine meant to delay the development of early onset Parkinson's disease on fit, considerably healthy women in their 40s. Doctor X finds a group of 20 women who fit these conditions and administer an intravenous IV of medicine twice a week to the group. 10 of the women in the group are given a placebo drug without their knowledge, and although the liquid in their IV’s looks the same as the other medicine, it is infact different.
Questions:
How does drug X effect early onset Parkinson's on fit, considerably healthy, women in their 40s?
Hypothesis:
This experimental drug will work completely effectively on women it is actually administered to.
Independent Variable:
The drug administered.
Dependent Variable:
The development of Parkinson's.
Control Group:
The placebo group.
Experimental Group:
The women who have been administered the drug.
Constants (controlled variables):
The consistency of the medicine and the similarities of the people taking the drug.