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PRE EXPERIMENTAL
DESIGN
DR. MAHESWARI JAIKUMAR
CHARACTERISTICS
This design is considered as very
weak, as the researcher has very
little control over the experiment
TYPES
There are two types or pre experimental
design. They are as follows:
1. ONE SHOT CASE DESIGN.
2. ONE GROUP PRE TEST ...
ONE SHOT CASE DESIGN
• In this design, a single experimental group is
exposed to a treatment and observations
are made aft...
ONE SHOT CASE DESIGN
EXP GROUP TREATMENT POST TEST
ONE GROUP PRE TEST-POST
TEST DESIGN
• Is the simplest type of pre experimental
design, where only the experimental
group i...
• Afterwards the treatment is
administered, and finally a post test
observation of dependent variable is
carried out to as...
GROUP PRE TEST – POST TEST
DESIGN
EXP GROUP TREATMENT POST TESTPRE TEST
ADVANTAGES
• Is a very simple & convenient
design that helps the researcher to
conduct studies in natural settings.
• It i...
DIS ADVANTAGES
• Is considered very weak experimental design
to establish causal relationship between
independent & depend...
THANK YOU
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PRE EXPERIMENTAL DESIGN

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PRE EXPERIMENTAL DESIGN

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Transcript of "PRE EXPERIMENTAL DESIGN"

  1. 1. PRE EXPERIMENTAL DESIGN DR. MAHESWARI JAIKUMAR
  2. 2. CHARACTERISTICS This design is considered as very weak, as the researcher has very little control over the experiment
  3. 3. TYPES There are two types or pre experimental design. They are as follows: 1. ONE SHOT CASE DESIGN. 2. ONE GROUP PRE TEST POST TEST DESIGN.
  4. 4. ONE SHOT CASE DESIGN • In this design, a single experimental group is exposed to a treatment and observations are made after the implementation of that treatment. • There is no random assignment of the subjects to the experimental group. • There is no control group.
  5. 5. ONE SHOT CASE DESIGN EXP GROUP TREATMENT POST TEST
  6. 6. ONE GROUP PRE TEST-POST TEST DESIGN • Is the simplest type of pre experimental design, where only the experimental group is selected as the study subjects. • A pre test observation of the dependent variable is made prior to the implementation of the treatment to the selected group.
  7. 7. • Afterwards the treatment is administered, and finally a post test observation of dependent variable is carried out to assess the effect or treatment on the group. • This design measures the effect of intervention before (pre test) and after the experiment (post test). • There is no control group in this design.
  8. 8. GROUP PRE TEST – POST TEST DESIGN EXP GROUP TREATMENT POST TESTPRE TEST
  9. 9. ADVANTAGES • Is a very simple & convenient design that helps the researcher to conduct studies in natural settings. • It is most suitable for beginners
  10. 10. DIS ADVANTAGES • Is considered very weak experimental design to establish causal relationship between independent & dependent variables because it controls no threat to internal validity. • It has a higher threat to internal validity of research. • May have selection bias, which is a very serious threat.
  11. 11. THANK YOU
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