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In: Psychology

What is the strength of a randomized trial?

What is the strength of a randomized trial?

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Expert Solution

A randomised control trial is the technique of allocating subjects in clinical trials into control and treatment conditions where every participant has an equal opportunity for being a part of either of the two groups. As such, it offers the following advantages:

  • It helps to establish causation between the treatment condition or the independent variable and the changes in behaviour, symptoms, etc (dependent variable) as the differences between the two groups become comparable.
  • It allows the researcher to assign and administer treatment or intervention in a precise, controlled way and thus prevent confounding variables from altering the results as the differences tend to get equally distributed between the two groups when participants are randomly divided between the two groups.
  • Randomised trials increase the reliability of the study as they decrease observer’s bias and selection bias and minimises confounding due to unequal distribution in a chosen population.

Hayet Jeridi answered 10 months ago
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