Design of a Psychological Experiment Psyc 100 (0110-0129) Fall‚ 1996 Dr. Sternheim Report #1 (10 points) Problem: Suppose you are a psychologist who is interested in the effects of caffeine on the eye-hand coordination of students enrolled at UMCP. Design an experiment to test the hypothesis that caffeine enhances a student’s ability to hit a baseball. Describe your experiment by answering the following questions: 1) What are the independent and dependent variables? The independent variable
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many things from that morning cup of coffee‚ soda with popcorn‚ caffeine infused skin products and many other applications. Our premises are that if caffeine can help with our skin and energy boost then wouldn’t the same apply to plants? The goal of this biology project is to examine the effect of caffeine on plant growth. Caffeine comes from a plant so it would seem that it could help plant growth. A plausible prediction is caffeine will support plant growth by providing a source of nitrogen or
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Experiment 1 Background Diffusion is a process‚ in relation to the spontaneous movement of molecules from an area of high concentration‚ to an area of low concentration down a concentration gradient. It is a type of passive transport method‚ that requires no cellular energy (ATP). This movement occurs‚ until a state of equilibrium has been established on both sides of the membrane. The diffusion of molecules happens at cellular level‚ through a cell membrane via the pores. The cell membrane
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The Bandura et al experiment in 1961 conducted research into how we can transmit aggression through imitating aggressive models. 36 boys and 36 girls aged between 37 and 69 months were subject to this experiment. There were 3 conditions‚ the control group‚ the group exposed to the aggressive model and the group exposed to the passive model. In the standard condition‚ a child was settled in a corner with a small table and chair‚ potato prints and picture stickers. An adult model was then escorted
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How Does the Thermometer Work? A thermometer is a device that measures the temperature of things. The name is made up of two smaller words: "Thermo" means heat and "meter" means to measure. You can use a thermometer to tell the temperature outside or inside your house‚ inside your oven‚ even the temperature of your body if you’re sick. One of the earliest inventors of a thermometer was probably Galileo. We know him more for his studies about the solar system and his "revolutionary" theory
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Cell Fusion Introduction: The fusion of cells is a fundamental biological event that is essential for a variety of developmental and homeostatic processes. The importance of cell-cell fusion during development and disease is displayed in a variety of biological processes including‚ but not limited to‚ fertilization‚ development of tissues‚ the immune response‚ and aspects of tissue regeneration due to stem cells (Chen and Olson‚ 2005). Fertilization‚ which is the fusion of sperm and egg‚
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How Do Different Acidic Substances Effect the Mass of the Curd Formed? Purpose The purpose of the experiment was to discover which acidic substances increase or decrease the mass of curd formed with said substances. Background Information Milk is a nutrient-rich liquid found in the mammary glands of mammals. It is the primary source of nutrition for all newborn mammals‚ and is made up of water‚ lactose‚ proteins‚ and minerals. Curds are a solid dairy product achieved by the curdling‚ or coagulation
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I don’t think this experiment should be replicated today. The reason being is that the Generation we have today has a different mindset and that the experiment is unethical in my view. In 1961‚ Milgram was able to make the participants agree with the experiment. These results led to people trying out these trails because the participants knew the shock would be painful but not dangerous. With that being said‚ it shows you the mindset of the people during that time. People were laid back and were
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Each cell can be regarded as a metabolic compartment‚ as separate place where the chemical processes of that cell occur‚ the cell is made up of different organelles each specifically designed to carry out their function‚ and this is known as a cells ultrastrucure. All cells have a cell surface membrane; these are made up of phospholipids and make up a bilayer. A phospholipid has a hydrophilic head and a hydrophobic tail which is made up of 2 fatty acid chains; these are arranged is two layers with
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Calorimetry Experiment Purpose: The objective of this lab is to determine the enthalpy change for NaOH(aq) + HCl(aq) NaCl (aq) + H2O(l) Procedure: Before measuring the enthalpy of acid base neutralization‚ my partner Brian and I determined a calorimeter constant‚ using a homemade polystyrene calorimeter. With the following formula and data: qhot= cm (Tf-Ti) qcold=cm(Tf-Ti) SYSTEM DATA SURROUNDINGS DATA Water cold Mass: 50mL Water hot Mass: 50mL C=4.18 C=4.18 Ti=20 C Ti=31
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