QUIZ M1

• What is the definition of research design?

  A framework for research planning
• What does formulating a research design involve?

  Determining data type, sources, and analysis
• What is one significance of research design?

  Guides direction during experimentation
• How does research design help in statistical tests?

  It validates tests by considering assumptions
• What does the research design ensure about data collection?

  Appropriate data is obtained for analysis
• What is the role of identifying variables in research design?

  It defines relationships between variables
• What are independent variables?

  Variables you manipulate in an experiment
• What are dependent variables?

  Variables that represent the experiment's outcome
• What are extraneous variables?

  Variables held constant during experimentation
• What is an experimental group?

  A group that receives the experimental procedure
• What is a control group?

  A group not influenced by the independent variable
• What are controlled experiments?

  Experiments that use control groups
• What is the independent variable in the jazz music experiment?

  The presence of jazz music during sleep
• What is the dependent variable in the jazz music experiment?

  The duration of sleep for participants
• What are extraneous variables in the jazz music experiment?

  Room conditions like temperature and light
• What is the independent variable in the paper airplane experiment?

  The mass of the paper airplane
• What is the dependent variable in the paper airplane experiment?

  The distance the airplane flies
• What are extraneous variables in the paper airplane experiment?

  The conditions during the test flights
• What is the overall strategy of research design?

  Integrates components to address the research problem
• What is a variable in research?

  An entity that can take on different values
• How are variables used in investigative research?

  As points of comparison between objects
• What is local control in research design?

  Balancing and grouping experimental units
• What does replication in research design refer to?

  Conducting tests with multiple experimental units
• What is a randomized complete block design?

  Units are divided into homogeneous groups
• What features define a good research design?

  Well-defined experimental units and principles applied
• What is the first step in verifying research design principles?

  Identifying your experimental units
• What is the independent variable in the footwear company study?

  The type of insole used by runners
• What are the extraneous variables in the footwear company study?

  Conditions affecting runners during the study