Marketing Research and Insight Glossary

Definitions, common uses and explanations of 1,500+ key market research terms and phrases.

What is True experimental design?

Content Type:
Glossary
Share Print

True experimental design Definition

Research using an experimental group and a control group, and assignment of test units to both groups is randomized.

True experimental design in market research is a structured research methodology that aims to determine causal relationships between variables. It involves manipulating an independent variable to observe its effect on a dependent variable. It also randomly assigning participants to experimental and control groups to ensure comparability. This design minimizes biases and provides a high level of control over external variables, making it a gold standard for establishing cause-and-effect relationships.

How does true experimental design work?

  • Random assignment: Participants are randomly assigned to groups (experimental or control) to ensure equal distribution of potential confounding factors.
  • Intervention: The experimental group receives the treatment or intervention (e.g., a new marketing campaign), while the control group does not.
  • Measurement: Researchers compare outcomes between the groups to assess the impact of the intervention.

With true experimental design randomization eliminates selection bias, control groups provide a baseline for comparison and precise measurement ensures valid and reliable results.

Why is true experimental design important?

True experimental design is critical for determining whether specific changes lead to desired outcomes. It allows businesses to make data-driven decisions with confidence, knowing that observed effects are likely due to the intervention and not external factors.

True experimental design ensures validity and reliability of research findings, provides robust evidence for causal relationships and guides strategic decisions with scientifically backed data.

Who relies on true experimental design?

True experimental design is essential for:

  • Market researchers: To test hypotheses and evaluate interventions.
  • Product developers: To assess the impact of new features or services.
  • Marketers: To measure the effectiveness of campaigns or strategies.
  • Business leaders: To make informed, evidence-based decisions.

How does true experimental design improve market research outcomes?

True experimental design establishes causality and confirms whether specific interventions directly influence outcomes. It reduces confounding variables, ensuring that observed effects are due to the intervention rather than external factors. Finally, true experimental design enhances credibility and produces robust and defensible research results.