In an experiment, an independent variable is _______ and a dependent variable is _______.

In an experiment, an independent variable is _______ and a dependent variable is _______.
 
  a. manipulated, measured
  b. measured, manipulated
  c. continuous, manipulated
  d. discrete, summation

Question 2

If a happiness scale had a true zero point, a score of zero would mean
 
  a. low levels of happiness.
  b. an absence of happiness.
  c. an arbitrary level of happiness.
  d. nothing useful.

Question 3

A true zero point is characteristic of
 
  a. all scales of measurement.
  b. an interval scale.
  c. a ratio scale.
  d. none of the above

Question 4

Which of the following is NOT an example of assigning a number to an object?
 
  a. giving a sensitivity score to a roommate
  b. measuring a child's IQ
  c. giving a football player jersey 87
  d. All of the above are examples of assigning numbers to objects.