Qualitative vs. Quantitative Data Review for Scientific Method Scenarios Assignment Biology Ms Scribner
Qualitative vs. Quantitative Data Quantitative data is information about quantities; that is, information that can be measured and written down with numbers. Qualitative data is information about qualities; information that can't actually be measured.
Qualitative vs. Quantitative Data The age of your car. The number of hairs on your knuckle. The softness of a cat. The color of the sky. The number of pennies in your pocket. (Quantitative.) (Quantitative.) (Qualitative.) (Qualitative.) (Quantitative.)
Do you know the difference between the independent and dependent variables?
Example: amount of sugar put into a bread receipe Independent Variable The independent, or manipulated variable, is a factor that’s intentionally varied by the experimenter. Example: amount of sugar put into a bread receipe
Dependent Variable The dependent, or responding variable, is the factor that may change as a result of changes made in the independent variable. Example: sugar impacts the amount of gas produced making the bread loaf larger
Control The control group is defined as the group in an experiment or study that does not receive treatment by the researchers and is then used as a benchmark to measure how the other tested subjects do.
All experiments should have a control group. The control group is exposed to the same conditions as the experimental group, except for the variable being tested. All experiments should have a control group.
Can you think of some constants (control factors) for an experiment?
Constants The constants in an experiment are all the factors that the experimenter attempts to keep the same.
In a receipe for baking bread, they might include: Constants In a receipe for baking bread, they might include: Other ingredients to the bread recipe, oven used, rise time, brand of ingredients, cooking time, type of pan used, air temperature and humidity where the bread was rising, oven temperature, age of the yeast…