5. A good research design …
Enhances the validity of the research
Minimizes the plausible alternative
explanations for the hypothesized cause-
effect relationship.
6.
7. 1. Objectives of the study/ Type of the study
2. Independent Variable / Manipulated variable
3. Dependent Variables/ Observation/ Measures
4. Treatment and Control
5. Subject of the study/ Test organisms
8. 6. Samples or groups
7. Sampling plan
8. Method of assignment
9. Control of Extraneous Variables
10. Replicates/ Trials
11. Statistical Analysis
49. Type of data
Ranks
Two levels of
independent
variables
Independent
samples
Mann-
Whitney U
Correlated
Samples
Wilcoxon
matched pairs
signed ranks T
Two levels of
independent
variables
Independent
Samples
Wilcoxon Wilcox
multiple
Comparisons
51. Means
1 independent
variable
One sample
One sample
1 test
Two levels of
independent variables
independent
samples
Correlated samples
Two levels of
independent variables
Two independent
variables
Independent
samples
Factorial
ANOVA
Independent t-
test
Correlated
t-test
Independent
samples
Correlated
samples
One-way
ANOVA
Tukey
HSD
Tukey
HSD
Correlated
measures
ANOVA
Type of data
55. References
Amamanglon KPH. 2007. The change in the cell wall components of the different parts of pechay (Brassica
rapa) exposed to ultraviolet-B at varying duration[unpublished research paper]. Ilo-ilo City: Philippine Science
High School Western Visayas 66p.
Araneta MEAM, Brasileo L.l. 2006. Line-follower robot: a technology to aid the elderly [unpublished research
paper]. Iloilo City: Philippine Science High School Western Visayas 48p.
Billones I.R. Palma RMR, Villacastin AJB. 2006. Pathogenic bacteria found in various streetfood such as
juices,food sauce and ready-to-eat fruits at randomly selected places in IloiloCity [unpublished research paper]
Iloilo City: Philippine Science High School Western Visayas. 49p.
Cadornigara ML. 2012. Fundamentals of resarch, methods and models, Iloilo City: Mindset Publishin Inc.
Caintic HE, Cruz JM. 2008. Scientific research manual. Quezon City: C&E Publishing, Inc ,;147 p.
Contreras ST. 2008. Allometric models for diwal9Philas Orientalis) Iloilo City: Philippine Science High School
Western Visayas
Parker SP, editor 1994. McGraw-Hill dictionary of scientific dictionary of scientific and technical terms fifth
edition. New York: McGraw-Hill, Inc.; 2194p.