Identification of research problem

1. Research Problem and Research Design

3.  Some difficulty which a researcher
experiences in the context of either a
theoretical or practical situation and wants to
obtain a solution for the same

4.  Subject which is overdone should not be
normally chosen
 Controversial subject should be avoided
 Too narrow or too vague problems should be
avoided
 Familiar and feasible subject should be
preferred
 Costs and time involved should also be
considered
 Should be preceded by a preliminary study

6.  What
 Why
 Where
 When
 How
Need for Research Design

7.  Dependent and independent variables
 Extraneous variable
 Control
 Confounded relationship
 Research hypothesis

8.  Experimental and non-experimental
hypothesis-testing research
 Experimental and control groups
 Treatments
 Experiment

9.  Principle of Replication
 Principle of Randomization
 Principle of Local Control

10.  Informal experimental designs
◦ Before-and-after without control design
◦ After-only with control design
◦ Before-and-after with control design
 Formal experimental designs
◦ Completely randomized designs
◦ Randomized block design
◦ Latin square design
◦ Factorial designs