IB Research Methodology Quiz

What is the primary goal of quantitative research?

• To explore human experiences

• To arrive at numerically expressed regularities

• To analyze texts and interviews

• To study individual cases in depth

Answer explanation

The primary goal of quantitative research is to arrive at numerically expressed regularities, allowing researchers to identify patterns and relationships through statistical analysis.

Which type of research involves manipulating an independent variable?

• Qualitative research

• Experimental studies

• Descriptive studies

• Correlational studies

Answer explanation

Experimental studies involve manipulating an independent variable to observe its effect on a dependent variable, making them distinct from qualitative, descriptive, and correlational studies.

What is a construct in research methodology?

• A theoretically defined variable

• A type of sampling technique

• A variable that can be directly observed

• A method of data collection

Answer explanation

A construct in research methodology refers to a theoretically defined variable that researchers use to measure abstract concepts. It is not directly observable, unlike variables that can be measured through observation.

In correlational studies, what is measured?

• The distribution of responses

• The effect of an independent variable

• The relationship between variables

• The operationalization of constructs

Answer explanation

In correlational studies, researchers measure the relationship between variables to determine how they are related, rather than manipulating any variables. This distinguishes it from experimental studies.

What is the main focus of qualitative research?

• Numerical data analysis

• Generalizable laws

• In-depth investigation of phenomena

• Statistical relationships

Answer explanation

The main focus of qualitative research is to conduct an in-depth investigation of phenomena, exploring the complexities and meanings behind human behavior, rather than relying on numerical data or generalizable laws.

Which of the following is a type of experimental design?

• Matched pairs design

• Stratified sampling

• Descriptive analysis

• Correlational analysis

Answer explanation

Matched pairs design is a type of experimental design where participants are paired based on certain characteristics, allowing for controlled comparisons. The other options are not experimental designs.

What is a confounding variable?

• A variable that is directly observed

• A variable that is controlled

• A variable that is manipulated

• A variable that can affect the relationship between IV and DV

Answer explanation

A confounding variable is one that influences both the independent variable (IV) and the dependent variable (DV), potentially skewing the results. Thus, it can affect the relationship between IV and DV.

What type of sampling involves participants choosing to be part of the study?

• Random sampling

• Opportunity sampling

• Self-selected sampling

• Stratified sampling

Answer explanation

Self-selected sampling occurs when participants choose to take part in a study, making it distinct from other sampling methods like random or stratified sampling, where selection is not based on participant choice.

Which type of validity refers to the generalizability of research findings?

• Construct validity

• Internal validity

• External validity

• Content validity

Answer explanation

External validity refers to the extent to which research findings can be generalized to settings, populations, and times beyond the study. It is crucial for applying results in real-world contexts.

What is the primary data collection method used in qualitative research?

• Experiments

• Observations

• Surveys

• Interviews

Answer explanation

The primary data collection method in qualitative research is interviews. They allow for in-depth exploration of participants' thoughts and experiences, providing rich, detailed data that other methods like surveys or observations may not capture.