Research in Psychology

An experiment is conducted to test how different cleats change an athletes running speed.  Six different types of cleats are tested and the 100m run time is recorded.  What is the independent variable?

• The type of cleat
• The run time
• The 100 meters
• The athlete

A student wants to test the effects of different types of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

Research Question: Does the type of gasoline put in a car effect how fast the car can drive? What is the independent variable?

• Type of gasoline
• which car the gas is put into
• how fast the car can drive
• how much gas is put into the car

Things that stay the same throughout the whole experiment are called

• controls
• dependent variables
• independent variables
• constants

Changeable elements of an experiment which can affect the outcome of the experiment if not carefully controlled are called:

• placebos
• variables
• quantitative elements
• control groups

The population in a research study is...

• the whole group of research interest.
• the smaller group that has been chosen from the group of research interest.
• exactly the same as the sample.
• always smaller than the sample.

Which correlation coefficient represents the strongest relationship between variables?

• -0.78
• 0.67
• 0.85
• -0.87

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

A correlation coefficient of 0.8 is a _______________ and suggests that as one variable ____________, the other variable ______________.

• strong positive | increases | increases
• weak positive | increases | increases
• strong positive | increases | decreases
• weak positive | increases | decreases

Which research would be ideal for the following question?
How does someones age effect what they consider right and wrong?

• Cross-sectional
• Survey
• Longitudinal
• correlation