The Experiment Method: The Most Effective

The problem with the experiment is regression to the mean. Regression is a threat that occurs when you have a nonrandom sample from a population and measures that are imperfectly correlated.

Procedure: Using distilled water, premeasured containers and objects determine displacement of fluids and density of objects. Use ice and heat measure temperatures in Celsius, Fahrenheit and Kelvin.

1.What two factors did you investigate in your procedure, and why did you choose to compare these two factors?

C. An unknown, rectangular substance measures 3.6 cm high, 4.21 cm long, and 1.17 cm wide.

Whether research is experimental or developmental, there are no guarantees of perfect study processes or results, since both random and systematic errors are expected. Errors and uncertainties of a study’s outcomes surface almost every time. Faulty, aged or incorrectly calibrated instruments, during an experiment, can lead to important alterations of results. Distracting environments definitely influence the outcome. Finally, the human parameter in the sense of having ability to properly operate instruments and correctly interpret measurements definitely consist another factor of imperfect research (Bell 7-9).

Students will carefully observe acts of aggression and prosocial behavior on television, report their observations, and analyze their data to draw conclusions.

The purpose of this particular lab was to experiment and identify the chemical and physical changes throughout the experiment.

3- How would you make it an experimental (rather than correlational) study (it might help to be specific here as well and define the two types of studies in your

However, the results of this experiment may not have been as accurate or precise as they

Wilder used experimental techniques in staging the play to complement the experimental innovations in characterization and structure. There is minimal scenery in Our Town, which was a technique never tried before: “The audience, arriving, sees an empty stage… the Stage Manager begins placing a table and three chairs” (p. 3). There is also no curtain. The act begins with an open stage. Every single play produced before this had a curtain. Wilder was one of, if not the first, to use this innovative style for his work. There are no props in the show either. The actors have to pantomime their actions where props would typically be used: “carrying an imaginary rack with milk bottles.” (p. 10). To add more detail to the character’s actions, there

When analyzing the IR spectrum of Ruthenium complex with DMSO, the prominent peak is presented at 1105.54 cm−1. This peak indicates that S=O bonded in DMSO. For DMSO, the frequency is around 1050 cm−1. From our spectra obtained for DMSO where the S=O peak is at 1017.65 cm−1. Since the bond appears at a higher frequency, this shows that the bond is strengthened by the reaction. This indicates that when the copper metal was combined with DMSO, it bonded with the Sulfur atom. Combining ruthenium with sulfur atom caused it to donate a pi electron as a back donation.

A good scientific experiment has to answer a testable and well-defined question. It also has to be systematic and controlled. A Scientific experiment that lacks one these features will most likely be flawed.

One known research method is the Scientific Method which is a uniform way of creating observations, assembly data, establishing concepts, testing predictions, and understanding outcomes. These observations are made in order to observe and define behaviors. The first step to take in using a scientific method is to develop an issue or question. Next step is to perform a research and observation on the issue or question that was developed. Then a hypothesis needs to be formulated after these steps have been made.

Quantitative research design is the standard experimental method of most scientific disciplines. These experiments are sometimes referred to as true science, and use traditional mathematical and statistical means to measure results conclusively. They are most commonly used by physical scientists, although social sciences, education and economics have been known to use this type of research. It is the opposite of qualitative research. Quantitative experiments all use a standard format, with a few minor inter-disciplinary differences, of generating a hypothesis to be proved or disproved. This hypothesis must be provable by mathematical and statistical means, and is the basis around which the whole experiment is designed. Randomization of any study groups is essential, and a control group should be included, wherever possible. A sound quantitative design should only manipulate one variable at a time, or statistical analysis becomes cumbersome and open to question. Ideally, the research should be constructed in a manner that allows others to repeat the experiment and obtain similar results.

First of all. I learned research methods from the video lecture. That is the first time I've heard about a detailed explanation of research methods. I was really interested in it because it is very important for us. The higher education level we are, the more research we need to do. As what I've learned, research has seven methods. The first step called: “defining the problem”. That means at the really first time when we do research, we should know what we want to know via this research. We need to come up some research question in our mind. The second step called: “reviewing the literature”. In this step, we should read some previous studies which are related to our topic. The literature must be trustable, and for journals, peer review is the better choice. The third step called: ” forming a hypothesis”. This step tells us after we are familiar with the previous research, maybe we can form a hypothesis in our mind. Actually, I have a little question about this step. Is this hypothesis based on the gap in the previous? The fourth step is choosing a research design. This is a step that organizes our research method. We need to think about who is the participants, when and how well we collect data. The fifth step is collecting the data. This step is kind of do your research plan what you prepared in the fourth step. There are many ways we can choose to collect data. Such as questionnaires, online survey etc. Next step is analyzing the data. This step is kind of tell the readers our research results. For here, we should determine if our hypothesis was true, false, or inconclusive. Also how the result similar to your thought. The final step is drawing conclusions. I think this is the most important part because you