3 commonly used designs in research

1. RESEARC
H DESIGN
By: TASNIM BALINDONG

2. RESEARCH DESIGN
 A detailed outline of how an investigation will
take place.
 A research design will typically include
how data is to be collected,
what instruments will be employed, how the
instruments will be used and the
intended means for analyzing data collected.

3. DESCRIPTIVE OR SURVEY
RESEARCH DESIGN
 is a scientific method which involves
observing and describing the behavior of a
subject without influencing it in any way.

4. CORRELATIONAL OR
PROSPECTIVE RESEARCH
 involves studying relationships among
variables within a single group, and frequently
suggests the possibility of cause and effect.
 Determines whether or not two variables are
correlated.

5.  In correlation in research, it can be positive or
negative.
 Positive correlations mean that as variable A
increases, so does variable B.
 A negative correlation is defined as when
variable A increases, variable B will decrease.

6. For example:
HIGH HIGH
LOW LOW
Research Question:
Do the students who have higher IQ
scores have the better achievement they
make?
Research Objectives:
To investigate the correlation between
students’ IQ scores and students’
achievement
Research Assumption:
There is correlation between students’
IQ scores and students’ achievement
Research Hypothesis:
The higher IQ scores the students have,
the better achievement they make.
Null Hypothesis:
There’s no correlation between students’
IQ scores and students’ achievement
IQ
SCORE
Achievement

7. SCATTER DIAGRAM
What is it?
 A diagram that presents the correlation
between two variables
 It shows the direction (positive or negative)
and the degree (high or low)

8. There is perfect positive
correlation [r=+1]

9. There’s perfect negative
correlation [r=-1]

10. There’s no correlation [r=0]

11. There’s high positive correlation
[r=.80]

12. What is the importance of
Correlation?
The higher
the correlation,
The stronger
the prediction

13. EXPERIMENTAL RESEARCH
DESIGN
 is an objective, systematic, controlled investigation
for the purpose of predicting phenomena and
examining causality among selected variables.
 Allows us to determine cause and effect

14. ESSENTIAL
CHARACTERISTICS
 Manipulation of an independent variable.
 Control- an attempt is made to hold all other variables
except the dependent variable constant.
 Observation- effect is observed of the manipulation of the
independent variable on the dependent variable .
 Randomization- means that every subject has an equal
chance of being assigned to experimental or of study
subjects on a random basis.

15. THANK YOU!!!