Page 110 - DMGT209_QUANTITATIVE_TECHNIQUES_II

Unit 6: Research Design

6.8 Summary Notes

 There are primarily four types of research namely exploratory research, descriptive research
and experimental research.

 Exploratory research helps the researcher to become familiar with the problem.
 It helps to establish the priorities for further research. It may or may not be possible to
formulate Hypothesis during exploratory stage.

 To get an insight into the problem, literature search, experience surveys, focus groups,
and selected case studies assist in gaining insight into the problem.

 The role of moderator or facilitator is extremely important in focus group. There are
several variations in the formation of focus group.
 Descriptive research is rigid. This type of research is basically dependent on hypothesis.

 Descriptive research is used to describe the characteristics of the groups.
 It can also be used forecasting or prediction.
 True panel and Omni bus panel.
 In true panel same measurement are made during period of time.
 In Omni bus panel different measurement are made during a period of time.

 A cross-sectional study involves field study and field survey, the difference being the size
of sample.
 Causal research is conducted mainly to prove the fact that one factor “X” the cause was
responsible for the effect “Y”.
 While conducting experiment, the researcher must guard against extraneous source of
error.
6.9 Keywords

Causal Research: A research designed to determine cause and effect relationship.
Conclusive Research: This is a research having clearly defined objectives. In this type of research,
specific courses of action are taken to solve the problem.
Descriptive Research: It is essentially a research to describe something.
Expost Facto Research: Study of the current state and factors causing it.
Extraneous Variable: These variables affect the response of test units. Also known as confounding
variable.
Factorial Design: This is an experimental design when the effect of two or more variables are
being studied simultaneously.
Field Study: Field study involves an in-depth study of a problem, such as reaction of young men
and women towards a product.

Literature Research: It refers to “referring to a literature to develop a new hypothesis”.
Longitudinal Study: These are the studies in which an event or occurrence is measured again
and again over a period of time.

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