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PRE-EXPERIMENTAL RESEARCH DESIGN

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  • Submitted by,
  • Poornima AR
  • 1st sem M Ed
  • NSSTC Ottapalam

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PRE- EXPERIMENTAL RESEARCH DESIGN

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CAMPBELL AND STANLEY (1963) HAVE FORMULATED 3 GENERAL TYPES OF EXPERIMENTAL DESIGNS

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TYPES OF RESEARCH DESIGN

  • PRE-EXPERIMENTAL RESEARCH DESIGN

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  • QUASI EXPERIMENTAL RESEARCH DESIGN

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  • FULL OR TRUE EXPERIMENTAL RESEARCH DESIGN

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Pre-Experimental Design�

  • They are research schemes in which a subject or a group is observed after a treatment has been applied, in order to test whether the treatment has the potential to cause change.

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Characteristics of �Pre-experimental design

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Characteristics

  • It provide little or no control over the extraneous variables or situational variables

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  • It happened before a true experiment is conducted

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  • Only the effect of independent variable on dependent variable is measured

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  • Validate the experiment in the preliminary phase itself

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  • It tells researchers how their intervention will affect the whole study

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TYPES

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TYPES

  • ONE SHOT CASE DESIGN

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  • ONE GROUP PRETEST POST TEST DESIGN

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  • STATIC GROUP COMPARISON

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FEATURES

IN ONE SHOT CASE DESIGN :

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TEST ONLY AFTER THE EXPERIMENT

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  • IN ONE GROUP PRETEST POST TEST DESIGN :

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TEST BEFORE AND AFTER THE EXPERIMENT

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  • IN STATIC GROUP COMPARISON

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DETERMINE THE INFLUENCE OF A VARIABLE ON ONE GROUP AND NOT ON ANOTHER

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ADVANTAGES

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ADVANTAGES

  • Cost-effective due to its easy process. 

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  • Very simple to conduct.

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  • Efficient to conduct in the natural environment. 

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  • It is also suitable for beginners. 

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  • Involves less human intervention. 

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  • Determines how your treatment is going to affect the true experiment.

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DISADVANTAGES

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DISADVANTAGES

  • It is a weak design to determine causal relationships between variables. 

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  • Does not have any control over the research. 

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  • Possess a high threat to internal validity. 

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  • Researchers find it tough to examine the results’ integrity. 

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  • The absence of a control group makes the results less reliable. 

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COMPARISON

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THANK YOU

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