EXPERIMENTAL RESEARCH DESIGN SAMPLE.pptx

EXPERIMENTAL.pptx

1. E X P E R I M E N T A L RESEARCH DESIGN HANNAH MARI D. VILORIA, MATEM IVY N. DANTES, MAEd -Filipino ROMNICK D. MAGUSIB, MST - Math

2. EXPERIMENTAL RESEARCH DESIGN It is a problem solving approach that the study is described in the future on what will be when certain variables are carefully controlled or manipulated. It seeks to answer questions about causation. The variables causing changes in subjects’ responses or performance are the independent variables .

3. EXPERIMENTAL RESEARCH DESIGN It is the most prestigious method for advancing science and technology as well as research and development because it is production-oriented. It is most useful in natural sciences. This is the only design that can truly test hypothesis regarding causes and effects relationships .

4. EXPERIMENTAL RESEARCH DESIGN EXPERIMENT is defined as proof of a hypothesis which seeks to hook up factors into a causal relationship through the study of contrasting situation which have been controlled on all factors except the one of interest, the latter being either the hypothetical effect. (Greenwood, 1955) The EXPERIMENTAL GROUP receives the treatment under investigation.

5. EXPERIMENTAL RESEARCH DESIGN A researcher wishes to conduct a study on the growth rate of milkfish cultured in the fishpond using the fish meal and bread meal as supplemental feeds. Experimental Groups: Milkfish fed with (1) fish meal (2) bread meal Independent Variable: Supplemental F eeds Dependent Variable: Growth rate Intervening Variables: pH, salinity, oxygen, etc.

6. E X P E R I M E N T A L RESEARCH DESIGN CHARACTERISTICS of

7. manipulation Researchers set up groups and randomly assign them to treatments. There is the presence of an experimental variable which is introduced in the experiment and its effects are determined. Some variables in the experiment may not be manipulated, such as sex, socio-economic status, age, mental ability, among others. 1

8. manipulation Examples: Suppose an agriculturist would like to determine if a type of soil cultivation will affect the number of fruit of a certain tree will have. A teacher wants to find out if the software Geogebra will aid better learning of Geometry. The introduction of new medicine in curing fever. 1

9. control The researcher is able to control one or more variables. The control group receives the ordinary technique. The experimental group receives the new treatment. 2

10. control 2 Examples: Suppose an agriculturist would like to determine if a type of soil cultivation will affect the number of fruit of a certain tree will have. Control: Ordinary soil cultivation E xperimental: New soil cultivation b. A teacher wants to find out if the integration of Geogebra will aid better learning of Geometry . Control: Class without integrating GeoGebra Experimental: Class with Geogebra

11. randomization The experimental variable is randomly applied to the experimental group. The researcher should be as objective as possible, assigning as well the subjects without personal bias. Randomization means that assigned is done by pure chance, involving the use of the table of random numbers or other accepted random sample procedures. 3

12. E X P E R I M E N T A L RESEARCH DESIGN MATCHING METHODS on

13. Person-to-person matching People are selected on the basis of similar or identical personal characteristics. 1 Matching group 2 In bigger populations, groups are paired on a variable. Ranking Method 3 Subjects of the study are ranked in some selected variables like achievements, grades, etc.

14. Homogenous group Comparing groups that are homogenous. Example, you may only use one age group, sex, IQ level 4 Using subjects as their own control 5 This involves using the same subjects for the treatments. If there are three methods of instruction to try out, all the subjects will receive three treatments.

15. E X P E R I M E N T A L RESEARCH DESIGN TYPES of

16. SINGLE - GROUP DESIGN It involves a single treatment with two or more levels. Examples: The effects of different levels of nitrogen on the yield of peanuts. Effectiveness of teaching Mathematics using different methods. 1

17. TWO - GROUP DESIGN Two comparable groups are employed as control and experimental groups. Examples: The growth rate of Lapu-Lapu cultured in fish cage with and without supplemental feeds. Effectiveness of teaching Science using the traditional and modern approach. 2

18. TWO – PAIR GROUP DESIGN This is an elaboration of the two-group design where in there two experimental and control groups. Examples: Study of the nutritive values of canned milkfish in Salmon and Spanish style with and without sargassum as sea vegetable. Effectiveness of teaching Physics using two traditional approaches and two modern approaches. 3

19. PARALLEL - GROUP DESIGN Two or more groups are used at the same time with only one single variable ( control group) manipulated. Examples: The acceptability of canned short-bodied mackerel in salmon style with and without seaweeds ( Sargassum and Halymenia ) Effectiveness of teaching Physics using one traditional approaches and two modern approaches. 4

20. PRETEST-POSTTEST GROUP DESIGN This design involves the experimental group and control group which are carefully selected through randomization procedures. Examples: Effectiveness of teaching Physics using traditional approach and modern approach. Losing weight through exercise and taking dietary supplements. 5

21. PRETEST-POSTTEST GROUP DESIGN Single group Pretest-Posttest Design -single group of participants take the pre and post test. Examples: Effectiveness of Seminar to Employees The Use of laboratory method in teaching Statistics Diet and medicine in the treatment of diabetes 5

22. PRETEST-POSTTEST GROUP DESIGN B. Parallel-Equated two Group Design -two groups must be initially alike at the beginning of the experiment. There are four pairs of tests to be done. Pre-test results of control and experimental group Pre-test and post-test of control group Pre-test and post-test of experimental group Post-test results of control and experimental 5

23. PRETEST-POSTTEST GROUP DESIGN B. Parallel-Equated two Group Design Examples: Effectiveness of a curriculum material Determining the effectiveness of a. coaching method b. giving rewards 5

24. CORRELATIONAL DESIGN This design is used to determine the relationship of two dependent variables on how they are manipulated by the independent variables. Correlation Coefficient is the statistical tool used. Examples: Weight and length of tilapia using fish meal as supplemental feed. 6

25. Effects of three kinds of chemicals on the strength of the same types of rope The effects of earthworm in the growth of plants The effects of Three Herbal medicines in the treatment of Colds Effect of the implementation of the new instructional material Math and Science Achievement of STEM students Determine the type of experimental research design that is applicable. Defend your answer.

26. REFERENCES Methods of Research : A Primer Estela G. Adanza , Pedrito Jose U. Bermudo , Marietta B. Rasonable Methods of Research and Thesis Writing Laurentina Paler- Calmorin , Melchor A. Calmorin HANNAH MARI D. VILORIA, MATEM IVY N. DANTES, MAEd -Filipino ROMNICK D. MAGUSIB, MST - Math