Page 42 - SREENARAYANAGURU OPEN UNIVERSITY
P. 42

◆ Descriptive research design

                                             Descriptive research is used to answer questions such as “what”,
                                           “when”, “where”, and “how”, rather than “why”. It is a type of
                                           research that describes a population, situation, or phenomenon.
                                           Descriptive research is conducted to the following objective:

                                             * To describe the characteristics of relevant group like a tourist,
                                           investors etc..
                  ◆ Describes the
                 characteristics             * To study or estimate the proportion of people in a particular
                                           population who hold certain specific attitudes, opinions etc. e.g.,
                                           number of people who are in favour of the Contributory Pension
                                           Scheme.
                                             * To make predictions about a specific phenomenon e.g., what
                                           will be the growth of online trading among people.

                                                ◆ Experimental research design

                                             Experimental  research  is  a  scientific  method  of  conducting
                                           research  in  which  one  or more  independent  variables  are
                                           manipulated  and applied  to one or more dependent  variables
                  ◆ Cause and effect       in  order  to  determine  their  effect  on  the  latter.  The  effect  of
                 relationship              independent  variables  on dependent  variables  is typically

                                           observed and recorded over time to assist researchers in reaching
                                           a reasonable conclusion about the relationship between these two
                                           variable types. Experimental research is conducted to study the
                                           cause and effect relationship between variables under study.
                                             Types of experimental design

                                             Experimental designs can be classified in four categories.
                                             a. Pre-experimental research design

                                             In a pre-experimental research design, one or more dependent
                                           groups are observed for the effect of an independent variable that is

                  ◆ One or more            assumed to cause change. It is the most basic type of experimental
                 dependent group           research design and has no control group.
                                             Although very practical,  experimental  research is lacking
                                           in several areas of the true-experimental  criteria.  The pre-
                                           experimental research design is further divided into three types:

                                                ◆ One-shot case study research design
                                               Only one dependent group or variable is considered in this
                  ◆ One dependent              type  of experimental  study.  The  study is conducted  after
                 variable
                                               some treatment that is expected to cause change, making it a
                                               post-test study.
                                                ◆ Before-and-after without control design or One-group
                                               pre-test-post-test research design

                                               This research design combines a post-test and a pre-test study



                 36      SGOU - SLM -MCom Research Methodology
   37   38   39   40   41   42   43   44   45   46   47