AP Psych Unit 0-Science Practices

What makes a correlation positive?

• When two variables move in opposite directions

• When variable A causes variable B to increase

• When variable A causes variable B to decrease

• When two variables either increase or decrease together

When you perform an experiment, what are you trying to accomplish?

• Find out if there is a cause/effect relationship

• Find out if there is a correlational relationship

• Find out if there is a negative correlation

• Find out if this is a longitudinal study

What is a confounding variable?

• a variable that you manipulate

• a variable that you put in the control group

• a variable that affects others and can distort the true relationship between two variables

• it is actually the dependent variable

What is one limitation when using a case study?

• Your information cannot be generalized

• There are too many people to study all at the same time.

• You have to use a likert scale.

• Finding a laboratory to complete your experiment can be expensive

In an experiment, what is a dependent variable?

• the placebo given to the control group

• the original theory you have about something in nature

• The variable that may change as a result of how you manipulate the independent variable

• the variable that you manipulate

What is the mode in a set of data?

• The most commonly occurring number

• The middle number

• The average of all numbers

• The average of the middle two numbers

What is a random sample?

• picking your friends to participate in a study because you will already have an idea of how they will respond

• picking participants in a way that everyone from the target population has an equal chance of being selected

• making sure to use an equal number of men and women

• Using as many participants as possible

What is the dependent variable is an experiment testing if eating healthy causes you to lose weight?

• eating healthy

• weight loss

Which of the following describes the research method of analyzing the data compiled from multiple independent studies that have already been completed.

• case study

• naturalistic observation

• correlational study

• meta-analysis

What is is called when you already have your participants selected for a study and you then put them into one of two groups in a way that each person has the same chance of being in either group.

• randomization

• random assignment

• random selection

• random sample