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Variables and Data Collection

Variables

Questions

Question 1 out of 6.

Which of the following are qualitative variables?

  • height measured in number of feet
  • weight measured in number of pounds
  • number of days it snowed
  • hair color
  • gender
  • average daily temperature


Question 2 out of 6.

In a study of the effect of handedness on athletic ability, participants were divided into three groups: right-handed, left-handed, and ambidextrous. Athletic ability was measured on a 12-point scale. The independent variable is _________; the number of levels of the independent variable is _______.

  • athletic ability; three
  • athletic ability; twelve
  • handedness; three
  • handedness; twelve


Question 3 out of 6.

In a study of the effect of handedness on athletic ability, participants were divided into three groups: right-handed, left-handed, and ambidextrous. Athletic ability was measured on a 12-point scale. The dependent variable is

  1.  handedness.
  2.  athletic ability.
  3.  not described.
  4.  both a and b


Question 4 out of 6.

In a study of the effect of handedness on athletic ability, participants were divided into three groups: right-handed, left-handed, and ambidextrous. Athletic ability was measured on a 12-point scale. Check all that apply. The variable athletic ability is

  • discrete.
  • qualitative.
  • continuous.
  • quantitative.
  • a dependent variable.
  • an independent variable.


Question 5 out of 6.

In an experiment on the effect of sleep on memory, the independent variable is

  • number of hours of sleep
  • recall score on a memory test
  • gender of the subjects
  • gender of the experimenter


Question 6 out of 6.

In an experiment on the effect of sleep on memory, the dependent variable is

  • number of hours of sleep
  • recall score on a memory test
  • gender of the subjects
  • gender of the experimenter