HBS 2.2.3. Reaction Time Experimental Design I. Identify a Problem or Question: Can the reaction of an individual be affected by other external factors? II. Introduction: Reaction time refers to the amount of time it takes for a person to process and react to a stimulus. It is important in everyday activities‚ such as driving‚ and sports‚ but not much experiment is conducted to research on this matter. Reaction time with its practical implication can leads to great consequences‚e.g. d
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subtraction technique to time the different mental processes that the brain goes through when faced with different tasks. Donders performed experiments using reaction time tasks in 1868. His was the first attempt to analyze and measure the component processes of a simple task. 1. a simple reaction time task - e.g. you are seated in front of a panel that contains a light bulb and a response button. When the light comes on‚ you must press the button. 2. a choice reaction time task - e.g. you are
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Lab : Iodine-starch Clock Reaction Pre-lab: Before the lab was conducted‚ the concentration of the Iodate ions to be in the mixture made by dissolving specific volumes of solution A with a constant concentration and water was calculated using the dissolution formula: C1V1 = C2V2 Sample Calculation 1: Concentration of the Iodate ions: For mixture 1: C2 = C1V1/ V2 = (0.020mol/L) x (0.003L)/(0.01L) = 0.006mol/L The same calculations were used in the calculating of the
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Experiment 1 Word Association Test I. Objective To determine which type of association test (the free association or the partially controlled association test) will elicit a shorter reaction time‚ and that which will elicit more response words. II. Review of Related Literature According to a related study‚ word association is a way in which words come to be associated with each other and which influence the learning and remembering of words (Richards et al‚ 1985). It is used in psycholinguistics
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| 24.2 | 41.9 | 84.3 | 12 | 40 | 32.7 | 21.1 | 36.1 | 14.2 | 21 | 13 | 55.5 | 20.2 | 61.7 | 15.1 | 61 | 41.3 | 14 | 39.6 | 32.2 | 46.9 | 28.58 | 65 | 24.8 | 15 | 46.1 | 18.1 | 61.7 | 55 | 45.9 | 22.3 | Table 1b: Calculations of the reaction times the meter stick fell Trial# | Visual | Auditory(Sound) | Sensual(Pressure) | | John | Arthur | John | Arthur | John | Arthur | 1 | 0.299319 | 0.221774 | 0.259906 | 0.26573 | 0.319758 | 0.321032 | 2 | 0.387825 | 0.305059 | 0.367285 | 0
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| Ethanol: Pharmacokinetics and CNS effects | | | | | | | Mean | Range | Standard deviation | Peak BAC (mg/100ml) | 70.91 | 46 | 12.54 | Time of peak BAC (mins) | 44.32 | 75 | 21.85 | Peak subjective intoxication level | 4.9 | 5.5 | 1.94 | Time to peak intoxication (mins) | 59.09 | 120 | 35.99 | Rate of elimination (mg/100mL/h) | 16.20 | 12.66 | 4.49 | 1. 2. Comment on the variability in BAC and intoxication scores There are many factors which affect the
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believe that concentration affects viscosity in such a way as that the stronger the concentration of the solution‚ the stronger the viscosity of the solution. Variables Independent variable: * Concentration of C6H12O6 Dependent variable * Time it takes to pour 1cm3 of the C6H12O6 solution as an indirect measurement of the viscosity of the solution Controlled variable Temperature of the solution | Controlled by putting all solutions in a water bath set at 35°C until they have reached
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experiment Aim: The aim was to find the effect of holes on a parachute‚ varying their size and number. Hypothesis: 1. By increasing the number of holes‚ the time it will take to the parachute to reach the ground will be longer and its flight will be more balanced. 2. By increasing the size of the hole on the parachute‚ the time it will take to the parachute to reach the ground will be shorter and its flight will be less balanced. Apparatus: - garbage bag (squared shape with rounded angles)
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think or act instantaneously. The time required to take action depends systematically on mental and physical processes that precede an overt response. Thus throughout the areas of psychology‚ conclusions about the nature of mind and body have been based onmeasurements of human reaction time. Past uses of reaction time data extend from studies of elementary sensory mechanisms (e.g.‚ Green & Luce‚ 1973) to studies of perception (e.g.‚ Garner‚ 1962‚ 1970). Reaction time has a been a favorite subject of
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Experiment No. 1 Word Association Test Objective This experiment aims to determine which type of association test (the free association or the partially controlled association test) will elicit a shorter reaction time and that which will elicit more response word. Review of Related Literature Read (1993) distinguished three types associations on the basis of “preliminary drafting of items”: (a) paradigmatic (“The two words are synonyms or at least similar in meaning‚ perhaps with one being more
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