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research design - serves as a framework for research planning and answering your research questions.
identifying the problem
observing
formulating the hypothesis
experimentation
gathering data
drawing conclusion
communicating results
classifications of variable according to cause and effect
independent variable - variables being manipulated
dependent variable - responding effect of treatment
extraneous variable - constant sa lahat ng groups
groups of experimental design
experimental group - group that receives experimental treatment
control group - group that is separated from the rest of the experiment
three basic principles of research design
local control - prototype of a device or a computer program that is subjected to various treatments (test cases) to determine its correctness and consistency in performance.
replication - repetition of a test under controlled conditions. Replication makes the test of significance possible.
randomization - unbiased method of assignment of experimental units (or subjects).to validate. prevent effects of extraneous variable. consciously done
treatment - intervention
experimental unit - organism na bibigyan ng treatment
basic types of research design
completely randomized design - Experimental units assigned randomly in three treatments
randomized complete block design - Experimental units divided into three blocks and assigned treatment randomly
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