Question

Advantages and disadvantages of quasi experimental design

Answer 1

Answer:

The lack of random assignment into test groups leads to non-equivalent test groups which can limit the generalizability of the results to a larger population. Beside of the lack of randomization and the reduced internal validity, conclusions about causality are less definitive in quasi-experimental designs.07-Sep-2018

Answer 2

ADVANTAGES

•Quasi experimental designs are more frequently used because they are more practical and feasible to conduct research.

• Where the sample size is small, and where randomization & availability of control group is not possible, this design is preferred.

• Quasi experimental design is more suitable for real natural world setting than true experimental designs.

• This design allows the researchers to evaluate the impact of quasi independent variables under naturally occurring conditions.

• In some cases hypotheses are practically answered through this design.

DISADVANTAGES

• In this design there is no control over extraneous variables influencing the dependent variable.

• The absence of a control group and absence of control over the research setting makes the result of this design less reliable and weak for the establishment of causal relationship between independent & dependent variable.

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