DEFINITION According to Frankle, Jack R. And Norman E.Wallen., Experimental research is unique in twovery important respects: It is the only type ofresearch that directly attempts to influence aparticular variable, and when properly applied, it isthe best type for testing hypotheses about cause-and-effect relationships.
CHARACTERISTICS OF EXPERIMENTALRESEARCH Comparison of GroupAn experiment usually involves two groups ofsubjects an experimental group and a control orcomparison group. Manipulation of The Independent VariableIn this characteristic, the researcher activelymanipulates the independent variables. RandomizationAn important aspect of many experiments is therandom assignment of subjects to groups.
KINDS OF EXPERIMENTAL RESEARCH According to Suharsimi, Arikunto (P.123) Campbelland Stanley divided the kinds of experimentalresearch into two kinds, there are; PreExperimental Design and True ExperimentalDesign.
KINDS OF EXPERIMENTAL RESEARCH Pre-Experimental DesignDesigns that are “weak” do not have built-incontrols for threats to internal validity. One-Shot Case Study The One-Group Pretest-Posttest Design The Static-Group Comparison The Static-Group Pretest-Posttest Design
KINDS OF EXPERIMENTAL RESEARCH True-Experimental Design The Randomized Posttest-Only Control GroupDesign The Randomized Pretest-Posttest Control GroupDesign The Randomized Solomon Four-Group Design Random Assignment with Matching
PROCEDURES According to Arikunto, Suharsimi, the way to makean experiment research are:1. Determining the problem of research2. Writing the research Background3. Formulating the problems4. Formulating the Aims of the Research
PROCEDURES Determining the problem of researchArikunto, Suharsimi says “memilih masalah penelitian adalah suatulangkah awal dari suatu kegiatan penelitian”. Writing the research BackgroundIt is important for the researcher to write the research background intheir research. It makes clear that their research appropriate torealize. Formulating the problemsIn the experiment research, before the researcher starts hisresearch, he has to start make a plan. Formulating the Aims of the ResearchThe researchers have to formulate the aims of the research