I did this experiment and I found these validity issues: they never specified if temperature to be measured in celcius or faren., they never mentioned that the buckets were to be the same, stirring until your arms get tired is

30,351 results
  1. math

    1. A bag contains 9 tiles numbered 1 to 9. P(4) = 1/9. what type of probability is illustrated and why? (1 point) . experimental; the result is found by repeating an experiment. . experimental; the result is based on the number of possible outcomes.**** .

  2. Language Art

    1. The conclusion in a science text? A describes details involved in completing the experiment B shares the data found after an experiment is concluded C gives the background and purpose of an experiment D interprests the results of a completed

  3. HELP MATH ONLY 1 QUESTION!!!!!!!!!!!!!!!!!!!!!!!!!

    you draw five card from a standard deck of 52 cards p(heart)=4/5. what type of probability is illustrated and why?? 1) Theroretical ; the result is based on then number of possible outcomes 2) Theroretical; the result is found by repeating an experiment

  4. Maths

    The body of a murder victim was discovered at 11:00 A.M. and found the temperature of the body was 94.60°F. The temperature of the room was 700°F. One hour later, in the same room, he took the body temperature again and found it was 93.40°F. Estimate

  5. AP Chemistry

    These are some lab questions from the following lab: Vapor Pressure and Enthalpy of Vaporization of Water 1. Why does vapor pressure change with temperature? 2. The assumption was made that the vapor pressure of water is negligible at a temperature close

  6. Algebra 2

    URGENT HELP PLEASE the temperature of a room during an experiment can be modeled by the function f(x)=23.7 cos (Pi x /60) +18. Where f(x) is the temperature F degrees and x is the number is hours into the experiment. What is the lowest temperature the room

  7. Chemistry

    Assume you are performing the calibration step of Experiment 8 and you begin with 40 g of water at 20 oC and 40 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,

  8. physics

    A student conducted an experiment to determine the resistance of a lightbulb. while performing the experiment the student noticed that the lightbulb began to glow and became brighter as she increased the voltage. of the factors affecting resistance, which

  9. Science independent variable

    A scientist designed an experiment to test the effect of temperature on bacterial growth. He grew three different cultures of the bacterium E. coli under three heat lamps at different temperatures. What was the independent variable in this experiment?

  10. business

    International issues of social responsibility and ethical behavior are: 1.the result of greed found in capitalist countries. 2.found primarily in countries with a low standard of living. 3. a concern only of business professors. 4. difficult and not as

  11. algebra

    A body was found at 10 a.m in a warehouse where the temperature was 40 degrees Fahrenheit. The medical examiner found the temperature of the body to be 80 degrees Fahrenheit. What is the approximate time of death? Use Newtons law of cooling, with k =

  12. chemistry

    Assume you are performing the calibration step of Experiment 8 and you begin with 80 g of water at 20 oC and 80 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,

  13. Pre-Calc/Trig

    A body was found at 6 a.m. outdoors on a day when the temperature was 50oF. The medical examiner found the temperature of the body to be 66oF. What was the approximate time of death? Use Newton's law of cooling, with k = 0.1947. A. Midnight (12 a.m.) B. 5

  14. ed-tec

    What is the Multiple Source Test? A. checking to make sure that information can be found in more than one place B. a fact checking software that tests information found on the Internet C. an amendment that states that all information must be in multiple

  15. et

    which of the following statements is a true statement? A) if it is printed or posted on the web, then it is a fact B) websites must go through a validity checker before they can be posted on the internet C) experts constantly check everything on the

  16. Math

    For a scientific experiment, a physicist must make sure that the temperature of a metal does not get colder than −78 °C. The physicist changes the metal's temperature at a steady rate of −3 °C per hour. Let t represent temperature in degrees Celsius.

  17. Physics

    I know this is long but can someone just explain it to me? Please? Don't have to give the answer, I'm just confused :( 1. An experiment was devised to investigate the effects on the temperature of a cup of hot tea when lemon juice is added at different

  18. Mat/116

    An experiment is underway to test the effect of extreme temperatures on a newly developed liquid. Two hours into the experiment the temperature of the liquid measured to be -17 degrees celsius. After eight hours of the experiment the temperature of the

  19. Biology

    A chemical known as a fertex affects external fertilization of sea urchin eggs. An experiment was set up using three tanks to investigate the effect of fertex. Each tank had a different concentration of fertex: 1%, 2%, and 3%. Ten sea urchin eggs and 2mL

  20. org. chem.

    A student who was isolating aspirin stopped the experiment after the filtration step with alumina. One week later, the methanol was evaporated and the experiment was completed. The melting point of the aspirin was found to be 110-115 degress Celsius.

  21. chemistry

    a student determines the molar mass of methanol by the method used in this experiment. she found that the equilibrium temperature of a mixture of ice and pure water was .4 degrees Celsius on her thermometer. when she added 10g of her sample to the mixture,

  22. AP Statistic question

    A new type of fish food has become available for salmon raised on fish farms. Your task is to design an experiment to compare the weight gain of salmon raised over a six-month period on the new and the old type of food. The salmon you will use for this

  23. Chem/Physics

    1. The half-life for the (first-order) radioactive decay of 14C is 5730 yr (it emits a β ray with an energy of 0.16 MeV). An archaeological sample contained wood that had only 72 percent of the 14C found in living trees. What is its age? I got 500years?

  24. Algebra 2

    The temperature of a liquid during an experiment can be modeled by the function f(x)=3.8cos(πx20)+2.2 , where f(x) is the temperature in °C and x is the number of minutes into the experiment. What is the lowest temperature the liquid reached during the

  25. Biology

    A chemical known as a fertex affects external fertilization of sea urchin eggs. An experiment was set up using three tanks to investigate the effect of fertex. Each tank had a different concentration of fertex: 1%, 2%, and 3%. Ten sea urchin eggs and 2mL

  26. chemistry 101

    Assume you are performing the calibration step of Experiment 8 and you begin with 50 g of water at 20 oC and 50 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,

  27. Chemistry

    Assume you are performing the calibration step of Experiment 8 and you begin with 20 g of water at 20 oC and 20 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,

  28. Caluculus

    Can anyone help me with this problem? Suppose that during a controlled experiment, the temperature in a beaker containing some chemical substance at time t is rising at a rate of (15/13)t^2-(7t) degrees centigrade per minute. If the temperature after 1

  29. mat/116

    need an expression only to this word problem: An experiment is underway to test the extreme effect of a newly developed liquid. Two hours into the experiment the temperature if the liquid measured to be -17 degrees Celsius. After eight hours of h

  30. chemistry

    In a certain experiment, the rate constant, k, was measured as a function of the temperature, T. Two data points were as follows: (A) 25°C, 1.1 x 10–5 min–1, and (B) 225°C, 2.4 x 10-2 min–1. The student who performed the experiment then plotted the

  31. ua

    Assume you are performing the calibration step of Experiment 8 and you begin with 70 g of water at 20 oC and 70 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,

  32. AP Statistic question

    A new type of fish food has become available for salmon raised on fish farms. Your task is to design an experiment to compare the weight gain of salmon raised over a six-month period on the new and the old type of food. The salmon you will use for this

  33. Critical Thinking

    What is the meaning of validity, truth, and soundness as they relate to the area of logical syllogisms http://www.memoriapress.com/articles/logic.html scroll to Truth, Validity and Soundness What is the meaning of validity, truth and soundness as they

  34. Math

    you draw five card from a standard deck of 52 cards p(heart)=4/5. what type of probability is illustrated and why?? 1) Theroretical ; the result is based on then number of possible outcomes 2) Theroretical; the result is found by repeating an experiment

  35. health

    What causes depression? A. Environmental issues B. There is no known cause C. Biochemical issues D. Genetic issues ithink it D?!!

  36. Chemistry(Please check, thank you!!)

    For my rate of reaction experiment I have to answer the question "why did we ask you to measure the room termperature and temperature of reaction solutions". For the experiment we used 5 flasks and we put one of them in an ice bath at 6-10 degrees C. My

  37. science

    I did this experiment and I found these validity issues: they never specified if temperature to be measured in celcius or faren., they never mentioned that the buckets were to be the same, stirring until your arms get tired is not a good idea, but I need

  38. science

    I did this experiment and I found these validity issues: they never specified if temperature to be measured in celcius or faren., they never mentioned that the buckets were to be the same, stirring until your arms get tired is not a good idea, but I need

  39. science

    ht tp :/ /i1. ti nypi c.c om/ 7yr papx.j pg I did this experiment about antacids and i have to write three validity issues i could've had. I have two but I need one more. 1. I should have done more trials for more accurate results 2. when i stirred the

  40. Biology

    hi! so for science we have to make an experiment on temperature. we have to base our experiment on the given materials (which include test tubes, aluminum foil, cotton, fan) i chose a fan and I'm thinking of doing an experiment on how the strength of wind

  41. Psychology

    compare and contrast the strengths and weaknesses of two different approaches to study the following issue: You have developed a new drug that you believe is effective in reducing appetite. As a result of some preliminary research, you have been given a

  42. Psych

    I have a test that accurately predicts who will learn statics quickly. My test has a. predictive validity but not reliability b. content validity but not predicitive validity c. predictive valisity and reliability d. neither validity nor reliability

  43. program planning and evaluation

    Please respond to the following questions either by writing the design name or by describing the design using standard notation (X = program, O=observation, R= random assignment). For each design, please discuss all threats to internal validity. 1. a.

  44. Program Planning

    Please respond to the following questions either by writing the design name or by describing the design using standard notation (X= program, O=Observation, R=random assignment. For each design, please discuss all threats to internal validity. 1. Design:

  45. Program planning and evaluation

    Please respond to the following questions either by writing the design name or by describing the design using standard notation (X = program, O=observation, R= random assignment). For each design, please discuss all threats to internal validity. 1. a.

  46. program planning

    Please respond to the following questions either by writing the design name or by describing the design using standard notation (X= program, O=Observation, R=random assignment. For each design, please discuss all threats to internal validity. 1. Design:

  47. program planning and evaluation

    Please respond to the following questions either by writing the design name or by describing the design using standard notation (X = program, O=observation, R= random assignment). For each design, please discuss all threats to internal validity. 1. a.

  48. Validity/Reliability

    I have a test that accurately predicts who will learn statistics quickly. My test has a. predictive validity but not reliability b. content validity but not predictive ability c. predictive validity and reliability d. neither validity nor reliability i

  49. Research and Evaluation

    Am I reading this right? Internal validity refers to the extent to which a test measures what we actually do; Validity examines whether the conclusion that we draw about a demonstrated experimental relationship truly implies cause; and External validity

  50. biology

    my quations are without changing appratus in an experiment how can the reliability of the experiment result be improved and also why can small changes in room temperature during the experiment be ignored thank you!!

  51. math calculus

    In an experiment a persons body temperature is given by T=310-(7/9)^n where n is the number of minutes after in an experiment a persons body temperature is given by T=310-(7/9)^n where n is the number of minutes after the start of the experiment and T is

  52. Tech

    What types of issues can you likely resolve by knowing how to access and use the control panel. Choose all that apply. Network Issues*** Screen resolution and volume issues frozen application issues virus issues***

  53. math

    My math teacher gave me this problem: Prove the validity of cross products by example/words. (Why does it work as a strategy?) What is validity???

  54. history

    how can one man, the president of a nation, deal with terms and issues on a global scale and the issues within their country? If he concentrated his efforts on the issues within America then what would happen to the issues overseas? If the issues continued

  55. psychometric test

    Hi i have been given an experiment paper on personality, in this we have to come up with an updated version of Eysencks (EPI) questionnaire. This is to measure extroversion only ,we are measuring concurrent validity. Im having difficult in answering the co

  56. Chemistry

    In the following experiment, a coffee-cup calorimeter containing 100. mL of H2O is used. The initial temperature of the calorimeter is 23.0 degrees C. If 3.80 g of CaCl2 is added to the calorimeter, what will be the final temperature of the solution in the

  57. Science

    As researchers begin their studies, they must examine what they already know about their topic of investigation. Based on that information, they form a hypothesis. the hypothesis is A. a conclusion about what is going to happen in the experiment B. a

  58. Science check answers please and quickly

    1. Jim is doing a physics experiment on the rate of cooling of solid objects in air. Which of the following is a variable that is not directly part of his experiment, but should be controlled in his experiment? (Points : 1) initial temperature to which he

  59. Math

    Could you please check my response found at the following link : www(dot)jiskha.com/questions/1802395/How-do-we-test-the-validity-of-the-following-p-q-p-r-r-s-s-t

  60. Chemistry

    Suppose the atmospheric pressure during the experiment was 751 mmHg. The temperature of the water was found to be 23.0 degrees celsius. What is the pressure of the oxygen gas, Po2 that is produced?

  61. psychology

    the more baseball games you go to,the more hotdogs you eat could bean example of: a)content validity b)positive correlation c)prediction d)establishing content validity maybe B or D, need help

  62. Psy

    The Law School Admissions Test (LSAT) is given to students seeking admission to law school. If those who score high on the LSAT ultimately have higher grades in law school, while those with lower scores have lower grades, the LSAT is said to have? face

  63. math finite

    Assume that there are 7 different issues of Newsweek, 8 different issues of Time, and 4 different issues of Sports Illustrated, including the December 1st issue, on the rack. You choose 4 of them at random. (1) What is the probability that you choose 2

  64. math

    Determine the validity of the next arguements by using Euler Circles,then translate the statements into logical statements,using the basic connectives, and using truth tables, determine the validity of the arguments. Com your answers. (a) No A is B Some C

  65. hum/176

    How Might You Determine If InformatiOn Found Online Is Trustworthy Describe Credibility Issues With InformatiOn Found On The Internet Essays and Term Papers

  66. college

    Assume you are performing the calibration step of Experiment 8 and you begin with 80 g of water at 20 oC and 80 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,

  67. psychology

    When the conditions of a study resemble or approximate only the conditions of interest, questions may be raised about the ''blank'' of the study. A external validity B internal validity C standardization D randomization This question is very difficult for

  68. Psychology

    why are experiments high on internal validity? A) the conditions can be replicated by other experimenters B) they involve an independent as well as dependent variable C) they involve numeric observations that can be statistically analysed D) they are

  69. Life orientaion

    South Africa has many environmental issues tha pose a major challenge to our health. These issues can make one sick. Write two paragraph. Choose one issues from your list as your topic and provide two brief description of the issues. Illlustrate three ways

  70. Math

    The temperature of an object in a experiment is T(t) = 60(1/3)^t + 10, where T is the temperature in degrees C and t is time in seconds. What is the domain and range of this situation?

  71. Physics

    In an experiment to explore the nature of the relationships between velocity, force, and acceleration, what important issues are being ignored?

  72. Physics

    In an experiment to explore the nature of the relationships between velocity, force, and acceleration, what important issues are being ignored?

  73. Physics

    In an experiment to explore the nature of the relationships between velocity, force, and acceleration, what important issues are being ignored?

  74. Computers

    What are the ethical, social, and political issues that might arise through using a wiki? I believe I have found all of the possible ethical issues, but I cannot seem to find anything on the political or social aspects of the question. Any help would be

  75. Chemistry(Please check)

    For an experiment on specific heat capacities my data for measured specifi heats was consistently higher than the accepted values. I am not sure why this is. Would it be because my initial temperature that I started the experiment with was higher than it

  76. Microbes and Society

    The Forer Test of Personality that you took while reading this week's lecture notes appeared, at first glance, to offer insightful results. Later, you discovered that it actually displayed poor Answers: a. Divergent Validity b. Convergent Validity c.

  77. chemistry

    A microtube is found to have an ungraduated portion that will contain 0.26 g of water. Upon setting up the experimental apparatus as described in the experiment, a microtube is filled to 0.01 ml with water at 4ºC. At a temperature of 60ºC, the volume of

  78. math

    Determine the validity of the next arguments by using Euler circles, then translate the statements into logical statements using basic connectives, and using truth tables, determine the validity of the arguments. Compare your answers. (a)No A is B (b) All

  79. Math

    Determine the validity of the next arguments by using Euler circles, then translate the statements into logical statements using basic connectives, and using truth tables, determine the validity of the arguments. Compare your answers. (a)No A is B (b) All

  80. ORG. CHEM- Extraction Conclusion

    Does this sound okay, if not how might i improve it? Thanks. In this lab the purpose states that the method of extraction is to separate and distil two different immiscible liquids, an organic layer and an aqueous layer. In this experiment an ion transfer

  81. logic

    determine the validity of the next arguments by using Euler circles, then translate the statements into logical statements using the basic connectives, and using truth tables, determine the validity of the arguments. Compare your answers. (a) No A is B

  82. math

    Determine the validity of the next arguments by using Euler circles, then translate the statements into logical statements using the basic connectives, and using truth tables, determine the validity of the arguments. Compare your answers. (a No A is B Some

  83. Health

    What causes depression? A. Genetic issues B. Biochemical issues C. There is no known cause D. Environmental issues Reset Selection

  84. Science/ Experiment

    Directions: You are a medical researcher who has just "discovered" a new treatment for AIDS. Now you need to design an experiment to test its effectiveness. Using the follwoing questions as guidelines, plan your experiment. 1) What groups will you have in

  85. Science

    Directions: You are a medical researcher who has just "discovered" a new treatment for AIDS. Now you need to design an experiment to test its effectiveness. Using the follwoing questions as guidelines, plan your experiment. 1) What groups will you have in

  86. physics

    does anyone know who conducted the experiment or a credible description of the experiment that helped prove Einstein's thought experiment: the twin paradox? as in the experiment in which one cesium-beam atomic clock stays on Earth, while another one takes

  87. Government

    Compared with college students in the 1960s, college students today are A.more liberal on most issues B.more conservative on most issues C.more liberal on some issues, more conservative on others D.about as liberal on most issues E. much more liberal on

  88. Science Experiment

    Directions: You are a medical researcher who has just "discovered" a new treatment for AIDS. Now you need to design an experiment to test its effectiveness. Using the follwoing questions as guidelines, plan your experiment. 1) What groups will you have in

  89. Math

    Please help me! I found the mean temperature in a week in July, which was 87 5/7 degrees. I found the median temperature of the week, too which was 89 degress. Now can anybody help me compare the mean and median temperatures? This means a lot to e and I

  90. organic chem

    A student's correctly calculated value for the percent recovery of the purified unknown solid in a recrystallization experiment was 102%. Assume that the student performed all steps of the procedure correctly a) comment of the validity of this result;

  91. psychlogical statistics

    A random selection of files from a student counseling center revealed the following reasons why college students seek services: Mental health issues - 25 Learning/school issues - 15 Relationship issues - 5 Other - 5 What is the probability that if we

  92. math - probability

    Assume that there are 7 different issues of Newsweek, 8 different issues of Time, and 4 different issues of Sports Illustrated, including the December 1st issue, on the rack. You choose 4 of them at random. (1) What is the probability that you choose 2

  93. science

    I have been given the task to prove a hypothesis by conducting an experiment. Hypothesis: A candle will burn slower in a cooler environment. Independant variable: Temperature of the room (three temperatures) Dependant variable: Length of the candle after

  94. resources for educating young children and diverse

    a teacher asks all of the children in the class to watch a football game,and to write a report on the rules of the game.as some of the students in the class are recent immigrants from asia,europe,and africa,which principle of standardized testing might be

  95. Life sciences

    Under fetility procedure when they place the nutrients with salts in the petri dish for the development of the baby why is the temperature kep at 37 degrees celcius?it is the human temperature but in terms of this experiment why do they use it?

  96. science

    A biochemist used 10.000 grams of P-32 in a test on plant growth but forgot to record the date of his experiment. When he measured the amount of phosphorus-32 on another day, he found only 1.250 grams of the isotope remaining. If the half-life of P-32 is

  97. science

    Consider the following reaction: CH3X + Y --> CH3Y + X At 25ºC, the following two experiments were run, yielding the following data: Experiment 1: [Y]0 = 3.0 M [CH3X] Time (hr) 7.08 x 10-3 M 1.0 4.52 x 10-3 M 1.5 2.23 x 10-3 M 2.3 4.76 x 10-4 M 4.0 8.44 x

  98. IT 221

    Create a 200- to 300-word response to the following scenario: During the implementation phase of a project, as a project manager you are facing many team issues (such as family issues and interpersonal conflicts) and these issues are creating risks that

  99. health

    What causes depression? A. Genetic issues B. There is no known cause C. Biochemical issues D. Environmental issues C?

  100. Health

    What causes depression? A. Genetic issues B. Biochemical issues C. There is no known cause D. Environmental issues

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