Chapter 7: The Research Design Flashcards
1
Q
Functions of a Research Design
A
- identification and development of procedures and logistical arrangements required for a study
- importance of quality in procedures of the study
- conceptualize operational plan required for the study
- ensure that procedures are adequate, objective and accurate to the research question - Control of Variance
2
Q
Components of a Research Design
A
- classify the study: cross-sectional, comparative etc.
- study population + identification
- sample selection
- consent of subjects
- method of data collection
- ethical issues
3
Q
Theory of Causality
A
- understand different variables that cause the change in DV
- determine the impact of different categories of variables
- assess validity, objectivity and accuracy of IV
4
Q
Independent Variable
A
variable that can be manipulated and cause a change
5
Q
Dependent Variable
A
The result
6
Q
Extraneous Variable
A
all other factors that affect the relationship between IV and DV
7
Q
Importance of the Research Design
A
- control variance observed in the DV
- rule out extraneous variables
- develop sensitive test of the experimental hypothesis
- ensure that IV has maximum effect on DV, without other factors
8
Q
MAXIMINCON - Principle of Variance
A
- MAXimize variance due to the independent variable
- MINimize error variance
- CONtrol extraneous variables
9
Q
Maximize variance due to the independent variable
A
strong manipulation of the independent variable
10
Q
Minimize error variance
A
- reducing random errors of measurement
- using homogeneous sample to reduce error due to the individual difference variable
11
Q
Control extraneous variance
A
- antagonistic effects
- control techniques - control group
- eliminate extraneous variables
- random assignment to conditions to identify EV
- built in EV and eliminate at the end
