Flashcards in Lab-Chapter 1 Deck (15):
a way of knowing about the world
a systematic approach to inquiry that assumes that the answer to a question can be explained by a phenomena that are observable and measurable.
observation-hypothesis-experiment-data collection-data analysis-conclusions
first step in scientific method
in science it is an educated guess that is testable
designed to test the hypothesis
a characteristic that may or may not influence the outcome of an experiment.
a variable that is set at the outset of the experiment. It does not change as a result of the experimental procedure.
the unknown variable that is going to be measured. It is often expected to change as a result of the experimental procedure
are any variable that may affect the variable of interest
something in which to compare the values. In the example of body temperature, a "normal" body temp of 37 c is the obvious control value
the average of all the data points and is calculated by taking the sum of all the data points and dividing by the number of study subjects.
the middle value of all the data points
a measure of the variability of the individual data points compared to the mean.
simply the difference between the highest and lowest values and is calculated by subtracting the lowest value from the highest value