research question

Question 1

what is a variable?

Answer 1

characteristic that can be manipulated or observed

Question 2

dependent variable; AKA?

Answer 2

variables that might change in response to some intervention; what you are measuring; response variable

Question 3

which is dependent and independent variable? “is there and association bw smoking and lung cancer?)

Answer 3

dependent = lung cancer
independent = smoking

Question 4

independent variable; AKA??

Answer 4

condition, intervention that will cause a given outcome; explanatory variable

Question 5

research hypothesis (Ha); AKA???

Answer 5

best guess answer to the research question; alternative hypothesis

Question 6

null hypothesis (Ho)

Answer 6

opposite of the research hypothesis

Question 7

non-directional hypothesis

Answer 7

no prediction of direction ( is or is not)

Question 8

directional hypothesis

Answer 8

predicts a direction (higher or lower, weaker or stronger)

Question 9

relational hypothesis

Answer 9

predicts relationship bw variables rather than a difference