Definition of Experimental Research
Experimental
research is a powerful research method to establish cause and effect
relationship. Ary et al (2007: 338) states “Experimental research design is a scientific
investigation in which the researcher manipulates one or more independent variables,
controls any other relevant variables, and observes the effect of a manipulation
on the dependent variables(s)”. It means
that the experimental research design is a research design in which the researcher
manipulates the experimental group.
The
experimental research design is classified into pre-experimental design, true
experimental, and quasi-experimental. Pre-experimental research does not have
random assignment of subjects to groups or other strategies to control extraneous
variables. True-experimental research uses randomization and provides maximum
control of extraneous variables. Whether quasi-experimental research lack
randomization but employ other strategies to provide some control over
extraneous variables (Ary et al, 2002: 302).
INFO DAN FILE LENGKAPNYA KLIK DI SINI
HUB 085398507498
