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  2. Mar 7, 2024 · Experimental research serves as a fundamental scientific method aimed at unraveling. cause-and-effect relationships between variables across various disciplines. This. paper delineates the key ...

    • Basic Concepts
    • Two-Group Experimental Designs
    • Factorial Designs
    • Hybrid Experimental Designs
    • Quasi-Experimental Designs
    • Perils of Experimental Research

    Treatment and control groups. In experimental research, some subjects are administered one or more experimental stimulus called a treatment (the treatment group) while other subjects are not given such a stimulus (the control group). The treatment may be considered successful if subjects in the treatment group rate more favourably on outcome variab...

    The simplest true experimental designs are two group designs involving one treatment group and one control group. These are ideally suited for testing the effects of a single independent variable that can be manipulated as a treatment. The two basic two-group designs are the pretest-posttest control group design and the posttest-only control group ...

    Two-group designs are inadequate if your research requires manipulation of two or more independent variables (treatments). In such cases, you would need four or higher-group designs. Such designs, quite popular in experimental research, are commonly called factorial designs. Each independent variable in this design is called a factor, and each subd...

    Hybrid designs are those that are formed by combining features of more established designs. Three such hybrid designs are randomised bocks design, Solomon four-group design, and switched replications design. Randomised block design. This is a variation of the posttest-only or pretest-posttest control group design where the subject population can be...

    Quasi-experimental designs are almost identical to true experimental designs, but lacking one key ingredient: random assignment. For instance, one entire class section or one organisation is used as the treatment group, while another section of the same class or a different organisation in the same industry is used as the control group. This lack o...

    Experimental research is one of the most difficult of research designs, and should not be taken lightly. This type of research is often best with a multitude of methodological problems. First, though experimental research requires theories for framing hypotheses for testing, much of current experimental research is atheoretical. Without theories, t...

  3. Study with Quizlet and memorize flashcards containing terms like What are experiments used for?, What is an experiment?, What are two fundamentals of an experiment? and more.

  4. Experimental research—often considered to be thegold standard’ in research designs—is one of the most rigorous of all research designs. In this design, one or more independent variables are manipulated by the researcher (as treatments), subjects are randomly assigned to different treatment levels (random assignment), and the results ...

  5. In this chapter, we look at experiments in detail. We will first consider what sets experiments apart from other kinds of studies and why they support causal conclusions while other kinds of studies do not.

    • I-Chant A. Chiang, Rajiv S. Jhangiani, Paul C. Price
    • 2015
  6. Chapter 6: Data Collection Strategies. 6.1 Experiments. An experiment is a method of data collection designed to test hypotheses under controlled conditions (often in a laboratory), with the goal to eliminate threats to internal validity.

  7. In this chapter, we look at experiments in detail. We will first consider what sets experiments apart from other kinds of studies and why they support causal conclusions while other kinds of studies do not.

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