The Basics of an Experiment

The Basics of an Experiment Science is concerned with experiments and experimentation, but do you know what exactly an experiment is? Heres a look at what an experiment is... and isnt! Key Takeaways: Experiments An experiment is a procedure designed to test a hypothesis as part of the scientific method.The two key variables in any experiment are the independent and dependent variables. The independent variable is controlled or changed to test its effects on the dependent variable.Three key types of experiments are controlled experiments, field experiments, and natural experiments. What Is an Experiment?  The Short Answer In its simplest form, an experiment is simply the test of a hypothesis. Experiment Basics The experiment is the foundation of the scientific method, which is a systematic means of exploring the world around you. Although some experiments take place in laboratories, you could perform an experiment anywhere, at any time. Take a look at the steps of the scientific method: Make observations.Formulate a hypothesis.Design and conduct an experiment to test the hypothesis.Evaluate the results of the experiment.Accept or reject the hypothesis.If necessary, make and test a new hypothesis. Types of Experiments Natural Experiments: A natural experiment also is called a quasi-experiment. A natural experiment involves making a prediction or forming a hypothesis and then gathering data by observing a system. The variables are not controlled in a natural experiment.Controlled Experiments: Lab experiments are controlled experiments, although you can perform a controlled experiment outside of a lab setting! In a controlled experiment, you compare an experimental group with a control group. Ideally, these two groups are identical except for one variable, the independent variable.Field Experiments: A field experiment may be either a natural experiment or a controlled experiment. It takes place in a real-world setting, rather than under lab conditions. For example, an experiment involving an animal in its natural habitat would be a field experiment. Variables in an Experiment Simply put, a variable is anything you can change or control in an experiment. Common examples of variables include temperature, duration of the experiment, composition of a material, amount of light, etc. There are three kinds of variables in an experiment: controlled variables, independent variables and dependent variables. Controlled variables, sometimes called constant variables are variables that are kept constant or unchanging. For example, if you are doing an experiment measuring the fizz released from different types of soda, you might control the size of the container so that all brands of soda would be in 12-oz cans. If you are performing an experiment on the effect of spraying plants with different chemicals, you would try to maintain the same pressure and maybe the same volume when spraying your plants. The independent variable is the one factor that you are changing. It is one factor because usually in an experiment you try to change one thing at a time. This makes measurements and interpretation of the data much easier. If you are trying to determine whether heating water allows you to dissolve more sugar in the water then your independent variable is the temperature of the water. This is the variable you are purposely controlling. The dependent variable is the variable you observe, to see whether it is affected by your independent variable. In the example where you are heating water to see if this affects the amount of sugar you can dissolve, the mass or volume of sugar (whichever you choose to measure) would be your dependent variable. Examples of Things That Are Not Experiments Making a model volcano.Making a poster.Trying something, just to see what happens. On the other hand, making observations or trying something, after making a prediction about what you expect will happen, is a type of experiment. Sources Bailey, R.A. (2008). Design of Comparative Experiments. Cambridge: Cambridge University Press. ISBN 9780521683579.Beveridge, William I. B., The Art of Scientific Investigation. Heinemann, Melbourne, Australia, 1950.di Francia, G. Toraldo (1981). The Investigation of the Physical World. Cambridge University Press. ISBN 0-521-29925-X.Hinkelmann, Klaus and Kempthorne, Oscar (2008). Design and Analysis of Experiments, Volume I: Introduction to Experimental Design (Second ed.). Wiley. ISBN 978-0-471-72756-9.Shadish, William R.; Cook, Thomas D.; Campbell, Donald T. (2002). Experimental and quasi-experimental designs for generalized causal inference (Nachdr. ed.). Boston: Houghton Mifflin. ISBN 0-395-61556-9.

Free Essays on Greening Of Management

1.0 Introduction Advancements in technology over the last 100 years have provided mankind with an unappalled material wealth. According to the WorldWatch Institute Report, the world economy has expanded from $4 trillion in 1950 to more than $20 trillion in 1995, and in this same time period world population has more than doubled (WorldWatch Institute, as cited in Valasquez, 1998). But this technological and material prosperity does not come without its costs; there have been terrible consequences on our natural environment. Much of the burden can be placed onto the shoulders of unscrupulous business’s operating in the latter half of the 20th century under the ‘Classical view’ of social responsibility (Shaw, 1998). That is, that their only social responsibility is to maximise profits. Luckily, in the late 1980’s and throughout the 1990’s the attitudes of businesses towards looking after the environment began to change for the better. The widely used term for this is n ow know as, ‘The Greening of Management†. 2.0 Define and Discuss ‘The Greening of Management’ In the rapidly changing business world of the 21st century it is now widely accepted that â€Å"A primary concern of many businesses now is how to manage their environmental impacts effectively and efficiently† (Berry & Rondinelli, p38). The name for this fairly new style of management is called â€Å"Green Management†. The Greening of Management is concerned with companies embracing environmental protection as part of their competitive strategies, as well as â€Å"the recognition of the close link between an organisation’s decisions and activities and its impact on the natural environment† (Robbins, Bergman, Stagg, Coulter, p145). Greening of management has helped business’s understand that proper environmental protection requires the prevention or pollution rather than just the control of wastes at the end of the pipeline. (Berry & Rondinelli, 1998). ... Free Essays on Greening Of Management Free Essays on Greening Of Management 1.0 Introduction Advancements in technology over the last 100 years have provided mankind with an unappalled material wealth. According to the WorldWatch Institute Report, the world economy has expanded from $4 trillion in 1950 to more than $20 trillion in 1995, and in this same time period world population has more than doubled (WorldWatch Institute, as cited in Valasquez, 1998). But this technological and material prosperity does not come without its costs; there have been terrible consequences on our natural environment. Much of the burden can be placed onto the shoulders of unscrupulous business’s operating in the latter half of the 20th century under the ‘Classical view’ of social responsibility (Shaw, 1998). That is, that their only social responsibility is to maximise profits. Luckily, in the late 1980’s and throughout the 1990’s the attitudes of businesses towards looking after the environment began to change for the better. The widely used term for this is n ow know as, ‘The Greening of Management†. 2.0 Define and Discuss ‘The Greening of Management’ In the rapidly changing business world of the 21st century it is now widely accepted that â€Å"A primary concern of many businesses now is how to manage their environmental impacts effectively and efficiently† (Berry & Rondinelli, p38). The name for this fairly new style of management is called â€Å"Green Management†. The Greening of Management is concerned with companies embracing environmental protection as part of their competitive strategies, as well as â€Å"the recognition of the close link between an organisation’s decisions and activities and its impact on the natural environment† (Robbins, Bergman, Stagg, Coulter, p145). Greening of management has helped business’s understand that proper environmental protection requires the prevention or pollution rather than just the control of wastes at the end of the pipeline. (Berry & Rondinelli, 1998). ...

Doctors without borders Essay Example | Topics and Well Written Essays - 1000 words

Doctors without borders - Essay Example Having gone through the worst of what could happen to human lives during war and crisis, a select number of doctors from France destined themselves to serve the humanity all over the world, providing people in trouble with help and care. And thus, began the inception of â€Å"Doctors without Borders†. Having sown the seeds for this organization in 1971, the organization otherwise called as, â€Å"Me’decins sans Frontiers â€Å", spread its roots across several countries and eventually turned to be huge organization, operating in nearly 60 countries over the world. What has made this organization to be a special one is that the voluntary members of the organization act as a team, called as the multi-purpose team, helping out people who are affected by war, natural disasters and other atrocities of the world. Their privatised method of working has allowed them to perform hassle free operations, without the interruption of the government and politics. In addition, they h ave emancipated themselves under the international humanitarian laws and, because of their service to humanity their voice in public has grown louder every day. As a result, their global presence has vehemently forced the public to become aware of any atrocities happening across the world and protest against them. (Bortolotti 2004) Currently, with the growing innovations across several fields and the never ending race of nations to achieve supremacy, an organization like â€Å"Doctors without Borders† is the need of the hour. Their eccentric leadership has promoted people to join the organization and act selflessly in providing help to communities, even before they could plead for it. They are continuing to be an inspiration to many in this economic centric world of ours. As a result of their continuous contribution to the society, the organization was awarded the Nobel peace prize, during the year 1999, in the category â€Å"pioneering humanitarian

Current Issues in Parent-Child Relationships Research Paper

Current Issues in Parent-Child Relationships - Research Paper Example Children may not recognize the love and affection of the parents which may result in developing negative attitudes towards the parents. Parents on the other hand may think that they are working hard in order to make the future of their children safe; but in return they are getting only negligence and embarrassments. Both, the parents and the child travel in extremely opposite directions which may be resulted in strained parent-child relationship. Neither of them will be satisfied with their living conditions even though money may not be a problem for them. Psychological problems may affect both the parent and the child which may ultimately resulted in unhealthy incidents in the family. Latch –key-kids are more in Canada and it became a social problem now. In fact social service agencies are trying to find out a solution for it in various manners. The Latchkey Kids calling program is a system developed by Database Systems Corp. (DSC) in order to help such kids. â€Å"This program is an integral part of the CARE (Call Reassurance) phone system that checks on the well being of home alone children as well as senior citizens who need regular contact† (Care). I want to learn about the emotional problems of latch-key-kids. This is because of the fact that a psychologically disordered child can create lot of family and social

Report leadership Coursework Example | Topics and Well Written Essays - 4750 words

Report leadership - Coursework Example g to a visible set of leadership differences prevailing between Apple under the guidance of Jobs and Enron, their respective approaches towards performing various operational functions were also been determined thoroughly in the report. Steve Jobs had been quite an influential leader over the years and during his reign, Apple has experienced maximum success in the global business market. However, on the other hand, owing to the inefficiency in the domain of leadership, Enron has seen a major setback in its business, which ultimately resulted in total demise from the global market. Contextually, certain areas of improvement were highlighted in the report that could have enhanced the leadership approaches of both the companies and their respective leaders up to a certain extent. Business patterns have been transformed immensely over the years due to the progression in the domain of technology along with the emergence of various new and developed means of steering business activities. It will be crucial to depict that companies, which fail to move in parallel with the changing business environment will not be capable or less capable in ensuring the conduct of sustainable operations in the global business world. Contextually, it is worth mentioning that companies have the need to develop effective as well as creative strategies that can strengthen their competitive position both in the domestic and the global market. It is quite obvious to the fact that due to the absence of proper plans and policies, any business will suffer adversely and will not able to create a sustainable position for themselves in this competitive business world. In this regard, it is vital that companies plan their objectives and business prospects in an effective and efficient manner, further enhancing the probability of gaining maximum success. However, the other side of the coin depicts that proper execution of the strategies is equally important to attain several significant benefits for

Filipino Overseas Contract Workers in the US Essay Example for Free

Filipino Overseas Contract Workers in the US Essay For the first study, it is expected that the researcher would determine the factors that motivate Filipinos to leave their own country and work abroad. This would include their financial situations in the Philippines together with family size, occupation of spouse, occupation or educational level of the children, and other demographics. Since it is quantitative, it is expected that the study will be able to generate statistics in order to determine the best reason for their migration. Participants would probably prefer to migrate because of more compensation and support for multicultural groups (Zalaquett, et. al, 2008). This also includes an opportunity to work with the protection of the law implemented in the United States. Qualitative data would suggest poor chances of development for them in their own country. It is also expected in the trend study results that US foreign policy will be implemented for the migration of Filipinos in the country. More Filipinos are expected to leave their country and eventually take their families after they have established their lives in the States. However, the study does not make use of any scale in concluding for its objectives. The study is also limited to Filipinos whereas other races such as Israelites and Palestinians are not included. Also, the focus is only on the reason why Filipinos prefer to leave the Philippines and work in other countries (American Psychological Association, 2002). Based on the expected outcomes of the study, it is recommended by the researcher that further studies be initiated on this specific topic. It is also recommended that a study be conducted on job satisfaction of Filipino overseas workers (OFWs) in the United States and compare them with those who prefer to stay in the Philippines. A comparative study on worker’s rights and social security policies between the Philippines and other OFW filled countries is also recommended to further supplement the results of the present study. References American Psychological Association. (2002). Ethical Principles of Psychologists and Code Of Conduct (PDF). Zalaquett, C. , Foley, P. , Tillotson, K. , Dinsmore, J. , Hof, D. (2008). Multicultural and Social Justice Training for Counselor Education Programs and Colleges of Education: Rewards and Challenges. Journal of Counseling Development, Volume 86, Number 3, 323 – 329.

Pearl Harbor :: essays research papers fc

Pearl Harbor On December 7, 1941, one of the biggest disasters in United States history occurred. Truthfully, this was and is, â€Å"’A date which will live in infamy.’†(Costello 1), but not for the bombing of Pearl Harbor, but for the trickery and the confusion used by the Government and Franklin D. Roosevelt. To him this was a chess game and Roosevelt sacrificed over 2400 American Seamen’s lives, thanks to his power as Commander in Chief of the Armed Forces. By over-looking the facts of an attack by Japan on Pearl Harbor, Roosevelt was able to control both the political and economic systems of the United States. Most of American life before the Pearl Harbor bombing believed in the idea of not participating in political or economic relations with other countries. Roosevelt knew this, and knew the only way United States countrymen would stand up and fight in Europe’s War was to be a clear action against the United States. Roosevelt also thought Hitler would not declare war on the U.S. unless he knew they were beatable. There are several actions by Roosevelt and his armed forces advisors, which show they were aware of the attack by Japan, but they were also planning on it, and encouraging it. On October 7, 1940, Lieutenant Commander Arthur H. McCollum wrote the eight-action memo. The memo outlined eight different steps that the U.S. could do that he thought would lead to an attack by Japan on the United States. The day after this memo was given to Roosevelt, he began to use these steps. By the time that Japan finally attacked Pearl Harbor on December 7, 1941, all eight steps had occurred (Willy 1). The eight steps were made of two main ideas; a sign of United States military preparedness and threat of attack, and being a forceful control on Japans trade and economy. McCollum called for the United States to make plans with both Britain and Holland, to use military facilities and to gain supplies in both Singapore and Indonesia. He also thought for the use of a division of long-range heavy cruisers an d submarines. The last key factor that McCollum called for was to keep the United States in the area of the Hawaiian Islands. With the fleet located around Hawaii and mainly in Pearl Harbor, a double-sided sword was created. It helped quicker deployment times into South Pacific Water, but it also lacked many necessary military needs.