independent dependent and confounding variables

In a study of the effect of a driver training program on driving skill, a possible operationalisation of the dependent variable would be...

• driving quality
• number of accidents
• hours spent training
• amount of traffic

Independent variable is to dependent variable as _________ is to ____________.

• hypothesis | conclusion
• effect | cause
• cause | effect.
• conclusion | hypothesis

Which kind of study can establish a cause-effect relationship between variables, assuming that the research is appropriate and well conceived?

• survey
• case study
• correlational study
• experiment

Tags

CCSS.HSS.IC.B.3

Which answer provides examples of situational variables?

• independent variables, dependent variables
• time of day, noise level, temperature, location
• prior experience, motivation, intelligence, educational background
• extraneous variables, confounding variables

Paco's daughter will be participating in an upcoming dance recital. She will require a different costume for each dance she plans to performs.
c = the number of costumes Paco's daughter will require
d = the number of dances Paco's daughter plans to perform
Which of the variables is independent?

• c = the number of costumes
• d = the number of dances

Tags

CCSS.6.EE.C.9

Sarah is bringing treats to her elementary school class on her birthday. The number of treats she brings in is based on the number of students in her class.
t = the number of treats
s = the number of students
Which of the variables is independent?

• s = the number of students
• t = the number of treats

Tags

CCSS.6.EE.C.9

Sarah is participating in a walkathon to raise money for local literacy programs. The amount of money Sarah will raise depends on the distance she walks.
m = the amount of money Sarah will raise
d = the distance Sarah walks
Which of the variables is dependent?

• m = The amount of money Sarah will raise
• d = the distance Sarah walks

Tags

CCSS.6.EE.C.9

Tiffany was investing how fast it took Hayden to react to different sounds. Identify the independent variable.

• How fast Hayden reacted
• different sounds
• types of music
• Hayden

Tags

CCSS.6.EE.C.9

How does watching TV during studying affect a student’s test grades?

• independent
• dependent

Tags

CCSS.6.EE.C.9

Do roses grow more in height in partial or direct sunlight?

• independent
• dependent

Tags

CCSS.6.EE.C.9