Quiz on Quantitative Research Methods - Part 3

What is the purpose of a hypothesis in research?

• To prove the researcher's theory

• To predict the relationship between variables

• To collect data from participants

• To analyze the results of the study

What does a one-tailed hypothesis test look for?

• No change in the dependent variable

• An increase or decrease in the independent variable

• A specific direction of change in the dependent variable

• Any change in the dependent variable

In an experiment, what is the independent variable (IV)?

• The variable that is manipulated

• The variable that is observed

• The variable that remains constant

• The variable that is measured

What is a key characteristic of a true experiment?

• It is conducted in a natural setting

• Participants are not randomly allocated

• It lacks external validity

• All variables are controlled

What is a limitation of field experiments?

• Difficulty in replication

• Control over extraneous variables

• High internal validity

• Low external validity

What is the main focus of correlational research design?

• To manipulate the independent variable

• To control extraneous variables

• To measure the relationship between two variables

• To establish cause and effect relationships

What is a repeated measures design?

• Different participants complete each condition

• Participants are randomly assigned to conditions

• Participants are matched based on traits

• The same participants complete all conditions

What is a strength of matched pairs design?

• It is easy to replicate

• It controls for order effects

• It requires fewer participants

• It eliminates participant variability

What is a common issue with independent measures designs?

• Demand characteristics

• Participant variability

• Order effects

• Fatigue effects

What is the purpose of using a double-blind control in research?

• To eliminate researcher bias

• To increase external validity

• To reduce participant variability

• To ensure random allocation