scientific knowledge Flashcards
1
Q
what are the 4 different variables
A
IV - things we change
DV- thing we measure
CV- things kept the same
extraneous variable; any factor that can affect the outcome of the experiment eg. gender, ethnicity, health status.
2
Q
what is directional hypothesis
A
a hypothesis that states the relationship between 2 variables
eg. students who study for at least 2 hours per night will achieve significantly higher test scores than those who study for less than one hour per night.
