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RESEARCH METHODOLOGY INTAN Bukit Kiara 2005
THEORETICAL FRAMEWORK
Assoc. Prof. Dr. Yuserrie ZainuddinPusat Pengajian Pengurusan
WHAT IS THEORETICAL FRAMEWORK?
Why do we need to have theoretical framework?
How/where do we derive theoretical framework?
How do we know that our theoretical framework is an acceptable framework?
How do we test our framework?
THEORETICAL FRAMEWORK (TF)
is a conceptual model how we theorise the relationships among several factors (variables)
that have been identified as important to the problem
schematic diagram or mathematical/equation
THEORETICAL FRAMEWORK
Helps to postulate and test certain relationship - to improve understanding of the dynamics of the situation
testable hypotheses can be developed the basis of entire research rests we can identify the variables
How do we derive TF?
From previous research in the problem area
Based on theoriesIntegrating one’s logical beliefs with published research
Establishing gaps
The Components of the TF
Identifies and labels the important variables in the situation that are relevant to the problem
Shows the relationship of variables and elaborates
How and why moderating and intervening variables are treated
Schematic diagram of he conceptual model help to visualise the theorised relationships
THEORETICAL FRAMEWORK
Employees’competencies
OrganizationaleffectivenessNew Product
Developmentsuccess
StrongOrganizational culture
Independent variables Dependent variable
Variables
Anything that can take on differing or varying values (e.g. exam scores, age, motivation, satisfaction etc.
Types of variables Dependent variables Independent variables Moderating variables Intervening variables
Dependent variables
Criterion variableVariable whose behaviour or character is held to be predictable on the basis of an association with independent variable
Independent Variable Predictor Variable which researcher manipulates Studied within survey or experimental design
Which is assumed to occur - causally in an explanatory pattern prior to the dependent variable
Moderating Variable An independent variable which is hypothesised to modify the relationship between the dependent and independent variables.
X
Z
Y
Moderating
Intervening Variable
A variable - that hypothesised to exist but cannot be observed and is presumed to occur, to explain the relationship between the independent and dependent variable
A B Y
Intervening
t1 t2 t3
What is hypothesis?
A conjectural statement of the relation between two or more variables
Expressed in the form of testable statements
A prediction – if x occurs, y will also occurs
H1:The higher the commitment the higher the individual perceived toward job clarity, if higher extrinsic incentive available.
Two or more variables in the hypothesis
Independent variable – predictor variable
Dependent variable – criterion variable
Moderating variable Intervening variable
Examples
There is a significant relationship between new product success and the share market price.
Male managers will have more access to critical information than women managers in the same ranks
A manager believes that good supervision and training will increase the production level of the workers.
The importance of hypotheses?
As the working instruments of theory – hypotheses can be deduced from theory or from other hypotheses
Hypotheses can be tested – shown either true or false – only relations are tested
The importance of hypotheses?
The powerful tools for the advancement of knowledge – enable scientists to get outside themselves
There are problems behind the hypotheses
Types of Hypotheses
Descriptive hypotheses – proposition that typically state the existence, size, form or distribution of some variable – researchers tend to use research questions for these hypotheses.
Relational hypotheses – correlational (unspecified relationship), explanatory or causal (predictable relationship)
Correlational
Young engineers (under 35 years of age) are less productive than those who are 35 years or older.
There is a significant relationship between income and spending behaviour.
Explanatory
An increase in family income leads to an increase in the percentage of income saved
An increase in the price on salvaged copper wire leads to an increase in scavenging on the dumping sites.
There is a positive relationship between organisational commitment and managerial performance in ICT industry.
Statement of Hypotheses: Format
If-then statements Employees who are more healthy will take sick less frequently
If employees who are more healthy then they will take sick less frequently
Null Hypotheses
Null hypotheses is a proposition that states a definitive, exact relationship between two variables
It states that the population correlation between variables is equal to zero or that the difference in the means of two groups in the population is equal to zero
Null Hypotheses
Stated as “no” relationship between two variables or “no” significant difference
Ho: µM = µW or Ho: µM - µW =0 Ho represents the term null hypothesis µM is the mean motivational level of men µW is the mean motivational level of women
Null Hypotheses
Directional Ho: There is no significant relationship between stress experienced on the job and the job satisfaction of employees
Statistically HA: = 0 Directional HA: < 0 (the correlation is negative)
Alternate Hypotheses
The opposite of the null hypotheses – a statement expressing a relationship between two variables or indicating differences
There is a significant difference between gender on job satisfaction
There is significant relationship between eating habit and heart disease among lecturers