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How diversity influences teaching
How diversity influences teaching
How diversity influences teaching
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The ideal way to approach a question like this is through the means of a random experiment (students randomly selected). In this manner, the study would be subject to as few confounding variables as possible. Secondly, it would be optimal to control for unobservable characteristics such as ability bias and student perception in the study. In turn, this allows us to reduce the error term which could lead to a clearer possible causation as opposed to just correlation. Thirdly, the sample size should be as large as possible while being accompanied by an increase in the scope of comparison from two to four classes. Like in any other experiment, increasing the sample size yields better results that can be applied more universally. Fourthly, the experiment …show more content…
Unlike a random experiment, a natural experiment is mostly observing what has occurred. What's more, a natural experiment gives researchers limited control over a study. Like a random experiment, variables are separated and compared to determine the effect of an independent variable on a dependent variable. At any rate, Dr. Dee selected to go with a natural experiment on the grounds that a random experiment was not a viable option. In particular, Dr. Dee's natural experiment focused on the results of a 1988 National Education Longitudinal Survey of 8th grade teachers. Specifically Dr. Dee examined the effect that a teacher's gender had on student test scores. Dr. Dee takes this a step further by considering the size of a classroom, the race of a teacher, years of experience a teacher has, and whether a teacher was certified in their subject of teaching. It is important to remember that Dr.Dee uses the results of one year and does not take into consideration following years. Beyond this, Dr. Dee also examines student perception about the four core subjects. In short, Thomas Dee examined and manipulated what had occurred to come to his
The Daphnia magna species in this experiment were kept and preserved in jars of suitable water that acted as small ponds. Each Daphnia Magna was transported individually using a wide-mouthed pipette to a depression slide. The stability of the Daphnia Magna on the slide was attained by using a drop of pond water that acted as a boundary of movement for the Daphnia on the depression slide, small pieces of cotton wool were also used to act as an extra boundary to stop the Daphnia Magna from swimming in circles in the pond drop it was placed in; the stability factor was important in counting the heart beat rate more accurately. The depression slide was then placed under the stereomicroscope, over a cooling chamber that was used to slow down the
The use of model organisms in pre clinical trial is relied upon for the collection of safety and efficacy data prior to first in human clinical studies. The crustacean Daphnia magna is one model organism, whose heart rate is reported to react similarly to the human heart rate, when exposed to identical compounds (3).
The laboratory experiment gives the experimenter a greater chance to control the conditions and enables you to measure behaviour with greater precision. This method also allows for quantative research and also enables greater control of variables. Although it gives the experimenter greater control, this can also seem daunting to the subject who may feel more uncomfortable and is less likely to ...
Theodor’s experiment was created in part to learn which wavelengths (colors) of light were most effective in carrying out photosynthesis and to prove that it occurs in chloroplast. The experiment was inspired by Theodor’s observation of aerobic bacteria. Theodor observed that aerobic bacteria would move towards the chloroplasts of green algae. Theodor hypothesized that the reason why the bacteria moved toward the chloroplasts was because the organelle generated oxygen via photosynthesis. If photosynthesis occurs in chloroplasts, then the bacteria would aggregate on the chloroplasts producing the most oxygen. Theodor’s experiment was essential because it demonstrated that chloroplasts were the site of photosynthesis. Furthermore,
For our data set, we will explore the association amongst quiz 3 and the section that was given to us to evaluate for unit 10 Assignment 1. We will create a sample size which is 105 for this data set. Our predictor variable will be referred to within the class section because there are 3 class sections which make up our
There are many different factors to consider that play a part in experimental procedures. Without these variables, researchers would have a hard time making a claim about a particular topic, because they did not consider all sides of the experiment. An example of the variations done in experiments can be seen throughout Solomon Asch’s “Opinions and Social Pressure,”
Going into details of the article, I realized that the necessary information needed to evaluate the experimental procedures were not included. However, when conducting an experiment, the independent and dependent variable are to be studied before giving a final conclusion.
Next, compute a score for each participant in the following way: For each question, score a +1 if the participant's personal answer and predicted UB mean are either both below or both above the actual UB mean; score a -1 if the participant's personal score and predicted class mean are on opposite sides of the actual UB mean. Sum all six questions so that each participant now has a single score that ranges between -6 and +6. If people are randomly selected, the average score for all students should be zero. In contrast, if people are in the direction of their own beliefs, the average should be greater than zero. A simple, one-group t-test can be calculated using a predicted difference of zero for the null hypothesis.
...experiment, felt that the experiment made such a deep impression on him that he became convinced that “social sciences and psychology, are much more important in today’s world.'; One can only imagine the inner conflicts that were running through his head. After the experiment, he described the mood, “I did want to stop at that time. I turned around and looked at [the experimenter]. I guess it’s a matter of…authority.';
influenced in several ways, for example; whether the student likes his or her teacher, whether their best
A researcher uses an experiment to scientifically test out a hypothesis. In an experiment there are many different factors that are involved. There is the independent variable, which is the cause, it is the one that is being manipulated, and the dependent variable, which is the effect, is the response. When conducting a experiment it is important to make sure that the only thing than can affect the dependent variable is the independent variable. This is known as internal validity. Using random assignment to separate the participants into groups helps eliminate any outside factors, and creates an equal chance for all participants to be apart of the experimental conditions. There are many pros and cons to this type of method. The experimental method creates a strong control of the variables involved in the experiment, which allows an easier determination on cause and effect. If needed, it is fairly easy to replicate an experiment and is less time consuming than other research methods. However there are many downfalls as well. When conducting an experiment the setting of where the experiment is taking place is more artificial which may cause certain behaviors that wouldn’t occur in real life. This is known as external validity, which is the measure of how much the results of a study can be generalized and used in different situations, and people. To improve external validity cover stories are created when conducting experiments so the participants are not aware of what is really going on, or experiments are done in a natural setting as opposed to in a laboratory. However, this creates less control over confounding variables that can affect the experiment, which can create bias results (Aronson,
Brief History Jöns Jacob Berzelius, a physician by trade, first coined the term "organic chemistry" in 1807 for the study of compounds derived from biological sources. Up through the early 19th century, naturalists and scientists observed critical differences between compounds that were derived from living things and those that were not. Chemists of the period noted that there seemed to be an essential yet inexplicable difference between the properties of the two different types of compounds. The vital force theory (sometimes called "vitalism") was therefore proposed (and widely accepted) as a way to explain these differences. Vitalism proposed that there was a something called a "vital force" which existed within organic material but did not exist in any inorganic materials. {text:bookmark-start} {text:bookmark-end} Friedrich Wöhler is widely regarded as a pioneer in organic chemistry as a result of his synthesizing of the biological compound urea (a component of urine in many animals) utilizing what is now called "the Wöhler synthesis." Wöhler mixed silver or lead cyanate with ammonium nitrate; this was supposed to yield ammonium cyanate as a result of an exchange reaction, according to Berzelius's dualism theory. Wöhler, however, discovered that the end product of this reaction is not ammonium cyanate (NH4OCN), an inorganic salt, but urea ((NH2)2CO), a biological compound. (Furthermore, heating ammonium cyanate turns it into urea.) Faced with this result, Berzelius had to concede that (NH2)2CO and NH4OCN were isomers. Until this discovery in the year 1828, it was widely believed by chemists that organic substances could only be formed under the influence of the "vital force" in the bodies of animals and plants. Wöhler's synthesis dramatically proved that view to be false. Organic chemistry focuses on carbon and following movement of the electrons in carbon chains and rings, and also how electrons are shared with other carbon atoms and heteroatoms. Organic chemistry is primarily concerned with the properties of covalent bonds and non-metallic elements, though ions and metals do play critical roles in some reactions. The applications of organic chemistry are myriad, and include all sorts of plastics, dyes, flavorings, scents, detergents, explosives, fuels and many, many other products. Read the ingredient list for almost any kind of food that you eat — or even your shampoo bottle — and you will see the handiwork of organic chemists listed there. {text:bookmark-start} {text:bookmark-end} Major Advances in the Field of Organic Chemistry Of course no description of a text should be without at least a mention of Antoine Laurent Lavoisier.
Here the experimenter seeks knowledge by forming and testing a hypothesis. Scientific Method consists of an experiment, systematic observation and measurement, and testing, formulation and modification of hypothesis, which aids in producing results and creating a conclusion. This method of research is used often, as to maintain the objectivity, focus, and consistency of the study, by following these steps: (1) Ask a question, (2) Research existing sources, (3) Formulate a hypothesis, (4) Design and conduct a study, (5) Draw hypothesis and (6) Report results. These steps help to ensure the reliability, accuracy, and validity of study, results, and
There are many different types of students. All students have their own way of studying and learning material. A student’s attitude is the most determining factor in how well a student performs academically. Some students are eager to learn and try their best; however, some students could care less about learning. Each year students decide whether they will succeed or fail in school. All students fall into one category or another. Students can be classified into three categories: Overachievers, Average Joes, and Do Not Give a Rips.
These types of experiments are commonly used by anthropologists, psychologists and social scientists to observe natural behaviours without affecting them in any way. In this type of research the subject is being observed in a completely natural and unchanged natural environment. A good example of this would be an anthropologist who wanted to study a tribe without affecting their normal behaviour in any way. The main characteristic of this method is that the researcher has no control over the variables; he can only report what has happened or what is happening.