1. statistics

    A researcher finds that the correlation between variable A and variable B is r = +.20. She also finds that the correlation between variable C and variable B is r = -.40. Which relationship is scientifically more useful and by how much?

    asked by tiph on May 29, 2014
  2. Statistics in Psychology

    A researcher finds that the correlation between variable A and variable B is r= 5 1.20. She also finds that the correlation between variable C and variable B is r= 5 2.40. Which relationship is scientifically more useful and by how much?

    asked by Annie on February 10, 2014
  3. Statistics

    A researcher finds that the correlation between variable A and variable B is r = 1.20. She also finds that the correlation between variable C and variable B is r = 2.40. Which relationship is scientifically more useful and by how much?

    asked by baegirl on June 13, 2015
  4. statistics/psych

    Find TWO media examples of two types of correlations (explained below). You will have to do some research to find these. Next: (1) Find one media example (don�t make up your own) of a correlation that could be argued to be spurious (third variable).

    asked by ashley on November 16, 2011
  5. statistics

    In a correlation study, we seek to determine; *if the IV cause an outcome in the DV. *Which variable is the cause and which variable is the effect. *The direction of causation. *How well one variable predicts another variable.

    asked by erica on November 24, 2014
  6. Math help

    1. The number of students present in class & the number of empty chairs Type of correlation: Justification: Independent variable: Dependent variable: 2. Speed of car & distance traveled to complete stop after brakes are applied Type of correlation:

    asked by Anonymous on April 2, 2014
  7. MATH

    What type of coorelation does this haved) a middle school student's weight and height from birth to present--- NO COORELATION A correlation indicates the degree of linear relationship between two variables. A positive (+) correlation indicates that both

    asked by Erin on May 24, 2007
  8. Adult Development and life Assessment

    What do we call the variable that is manipulated by an experimenter when conducting in experiment. 1. Independent VARIABLE 2. Dependent variable 3. Beased variable 4. Extraneous variable My answer: Independent variable

    asked by Regina on November 25, 2012
  9. Adult Development and life Assessment

    What do we call the variable that is manipulated by an experimenter when conducting in experiment. 1. Independent VARIABLE 2. Dependent variable 3. Beased variable 4. Extraneous variable My answer: Independent variable

    asked by Regina on November 24, 2012
  10. biology

    5. A researcher finds that blood alcohol levels cause progressive damage to the liver. All the mice in his study were fed the same amount and types of food. Different concentrations of alcohol were injected into each mouse. One group of mice does not

    asked by hannah on October 8, 2013
  11. Stats

    In each of the four examples listed below, one of the given variables is independent (x) and one of the given variables is dependent (y). Indicate in each case which variable is independent and which variable is dependent. I. Rainfall; Crop yield II. Taxi

    asked by Jen on October 19, 2011
  12. Statistics

    Please Help, thank you! A researcher measures the following scores for a group of people. The X variable is the number of errors on a math test, and the Y variable is the person’s level of satisfaction with his/her performance. (a) With such ratio

    asked by baegirl on June 12, 2015
  13. Statistics

    A researcher measures the following scores for a group of people. The X variable is the number of errors on a math test, and the Y variable is the person’s level of satisfaction with his/her performance. (a) With such ratio scores, what should the

    asked by J.T on October 13, 2014
  14. multiple choice

    In the statement, "Men are more violent than women," violence is the: a. dependent variable b.independent variable c. intervening variable d. control variable Can someone pls help.

    asked by Jack on June 14, 2008
  15. statistics

    True or False: A zero population correlation coefficient between a pair of random variable means that there is no linear relationship between the random variable.

    asked by iyra on February 8, 2010
  16. Statistics

    Which, if any, of the values listed below for a correlation coefficient indicate a situation where more than half of the variation in one variable is associated with variation in the other variable? -.7 1 .3 .6 .9 I was thinking B

    asked by Mike on November 12, 2012
  17. psychology

    An experimenter is studying how time spent on a cell phone affects people's ability to drive safely. Driving the car is the: dependent variable. coefficient of correlation. independent variable. operational condition. Im between C and D. Leaning toward C.

    asked by john on October 31, 2010
  18. Psychology

    An experimenter is studying how time spent on a cell phone affects people's ability to drive safely. Driving the car is the: dependent variable. coefficient of correlation. independent variable. operational condition. I think the answer is A but i am not

    asked by Chloe on March 14, 2011
  19. psychology

    An experimenter wants to find out if drinking coffee makes people more alert. The amount of coffee a person drinks is the: hypothesis. dependent variable. independent variable. correlation coefficient.

    asked by cindy on October 30, 2010
  20. psychology

    An experimenter wants to find out if drinking coffee makes people more alert. The amount of coffee a person drinks is the: A. hypothesis. B. dependent variable. C. independent variable. D. correlation coefficient.

    asked by Anonymous on March 9, 2014
  21. stats ?

    A researcher investgating depression devises a study that contains the independent variable "Treatment," manipulated between-participants. Participants may experience "psychodynamic therapy," "cognitive behavioral therapy," "medication," or "waiting list

    asked by ash on March 2, 2009
  22. stats

    A researcher investgating depression devises a study that contains the independent variable "Treatment," manipulated between-participants. Participants may experience "psychodynamic therapy," "cognitive behavioral therapy," "medication," or "waiting list

    asked by ash on March 1, 2009
  23. chemistry

    Which of the answer choices is correctly defined as the variable in a controlled experiment that is purposely changed or manipulated? constant controlled variable dependent variable independent variable is it b?

    asked by malia on September 21, 2017
  24. Accounting

    An investor who is a non-resident for US tax purposes who buys stock of a US company is engaging in tax planning that uses the a.entity variable b.time period variable c. jurisdiction variable d. character variable

    asked by John on April 20, 2009
  25. Psychological Statistics

    TRUE OR FALSE. The Pearson correlation between X1 and Y is r = 0.50. When a second variable, X2, is added to the regression equation, we obtain R2 = 0.60. Adding the second variable increases the variability that is predicted by the regression equation for

    asked by Cindy on October 17, 2018
  26. Math

    The term correlation refers to a statistical technique that is used to ____.​ measure and describe the linear relationship between two variables measure the magnitude of a variable measure the significance of a variable measure the fit of a model

    asked by Annie on December 15, 2017
  27. algebra

    in a relationship between variables, what is the variable called that changes in response to another variable? a. function b. input function c. independent variable d. dependent variable

    asked by john on November 9, 2017
  28. Math

    in a relationship between variable called that changes in response to another variable? function input function independent variable dependent variable (my choice)

    asked by sam on November 1, 2013
  29. Science

    Which of the following best describes the dependent variable in an experiment? A- the variable that is measured B- the variable that is manipulated C- the variable that you can see D- the variable that is most common (My guess is A) Photosynthesis is the

    asked by Skye on September 20, 2014
  30. science

    what should you ask yourself when looking for an independent variable in an experiment? I would ask whether that variable can be manipulated or not. Here is more info on experimental variables that might be helpful. An independent variable is the potential

    asked by jasmine on March 29, 2007
  31. Algebra

    There are 4 problems that I don't understand how to solve so, please help me. A numerical explanation with words explanation would be nice. Thank you tutors. Rewrite each equation so it is in the form ax + b = c or x + d/e = f, where x is a variable. Then

    asked by anon on December 9, 2015
  32. Statistics

    A researcher wants to study the effect of gender on mathematical ability of lyceum children. From the data gathered tried to construct a scatter diagram. He did not succeed to make it though. Why?   a. Had not collected enough data. b. He did not know how

    asked by Susie on August 30, 2013
  33. Stats

    6. In each of the four examples listed below, one of the given variables is independent (x) and one of the given variables is dependent (y). Indicate in each case which variable is independent and which variable is dependent. I. Rainfall; Crop yield II.

    asked by Jen on October 18, 2011
  34. social psy

    ) Researcher wants to look at the correlation between class attendance and grade in class (higher numbers indicating a higher grade). The researcher found the following result r = .82. The correlation coefficient tells researchers two pieces of

    asked by deb on October 3, 2011
  35. Science

    What happens to the density of the air in the balloon as it is heated? Also, based on this question.... What would be the Independent variable, Depended Variable, controlled Variable...

    asked by Diana on January 13, 2016
  36. Help

    What happens to the density of the air in the balloon as it is heated? Also, based on this question.... What would be the Independent variable, Depended Variable, controlled Variable.

    asked by Diana on January 14, 2016
  37. Math help.

    1. 1 • 12 numerical expression variable expression; a is the variable variable expression; there is no variable variable expression; l is the variable 2. f ÷ 7 variable expression; there is no variable numerical expression variable expression; g is the

    asked by Anonymous on September 17, 2014
  38. Physics~ ONE MOREE

    Which of the following must the investigator measure during an experiment? independent variable dependent variable

    asked by May on December 29, 2014
  39. Psy

    A researcher is measuring the heart rate of subjects as an index of anxiety. In this study, heart rate is 1) negatively correlated with anxiety 2) an independent variable 3) an operational definition of anxiety 4) a confounded variable i think its number 3

    asked by Psy Help on December 19, 2007
  40. science

    what is a control ,variable, independent variable, experimental variabale, dependent variable

    asked by hannah on September 11, 2007
  41. 8th grade

    Data plotted on a graph results in a line that slopes upward from left to right. This graph tells you that a)when one variable increases, the other variable decreases. or b) when one variable increases, the other variable increases?

    asked by Angelo on October 11, 2010
  42. Science

    I have 8 questions and 1 question in the end that I don't need help with. Identify possible variables in the following situations. What variables can affect the sprouting of a bean seed? I think (I didn't answer yet so I'll just go with what I think oh and

    asked by anon on August 20, 2015
  43. college Psychology

    I am having trouble describing the interaction (How does effect of one Independent variable depend on level of other independent variable and why?) My 1st independent variable is Type of Stimulus: with 2 levels pictures and words. My 2nd independent

    asked by James on March 14, 2010
  44. MATH help

    Which of the following statements is true? A . The dependent variable is represented on the x-axis. B . The independent variable is also know as the output. C . The dependent variable is represented in the 2nd column of a table. D . The independent

    asked by Miranda Lambert on January 12, 2016
  45. algebra

    which statement is not true about variable? a a variable is used to represent a qty whose values may change or vary b letters are often used as variable c a variable is a rule showing relationshopms amount quantities d known values can be substitues for

    asked by marko on November 12, 2011
  46. Math

    In the equation c=9h, identify which variable is the independent variable and which is the dependent variable.

    asked by Amy on January 28, 2015
  47. MATH URGENT!!!

    A researcher is interested in the effects of monetary incentives on task performance. She recruits 60 undergraduate business students and offers to pay them each $5 for a 1 hour research session. She then randomly assigns these students to either a control

    asked by Jill on November 21, 2011
  48. Math help

    Elizabeth bought 3-inch tomato plants at home depot. Each week after she bought the plants she measured their height. she recorded the data in the table below. Time(wks) 0 1 2 3 4 Height of tomato plants(in.)3 5 7 9 11 what is the Independent variable?

    asked by Anonymous on April 13, 2014
  49. Science

    During a controlled experiment where you purposely change the temperature of the air in a room and you are measuring the effects on plant growth, what is the dependent variable? I am confused on this. Is the dependent variable plant growth or is the

    asked by Patrick on October 3, 2018
  50. Statistics

    Consider the following multiple regression results. Using a= .05 as the significance level, identify all statistically significant predictors. In a relative sense, which variable has the strongest impact? What is the interpretation of the “constant”

    asked by GG on September 5, 2011
  51. math

    everybody help!!!!!!!!!!!!i cant post it but its a graph and it do tomarow tell me wut a variable and wat i will dooooooooooooooooooo neeeeeeeee Well we'll need to know what the question is before we'll be able to help. So what is your question? well the

    asked by chemiii on September 13, 2006
  52. statistics

    Healthy breakfast contains the rating of 77 cereals and the number of grams of sugar contained in each serving. A simple linear regression model considering "sugar" as the explanatory variable and "rating" as the response variable produced the following

    asked by Gee on September 19, 2012
  53. biology

    i am in 9th grade biology and i am REALLY confused about the difference between controll variable, responding variable, manipulated variable and controll group. any help would be great. i have a test TOMORROW!!!!

    asked by Morgan on December 3, 2008
  54. Math

    A university conducts a study of tobacco use among 1000 of its students. Researchers survey male volunteers and female volunteers to find the frequency of tobacco use. The study finds that, of the people surveyed, 250 men and 50 women regularly use

    asked by faith on February 5, 2019
  55. Science

    There can be several controlled variables. If an experiment is to be useful, only one variable at a time can be manipulated intentionally. All other variables must be controlled throughout all parts of the experiment. If more than one variable is altered,

    asked by anon on August 23, 2015
  56. statistics

    1.For 10 pairs of data, the correlation coefficient is computed to be r = -1. Wht do you know about the scatter diagram? 2.You are considering the most expensive purchase that you are likely to make: the purchase of a home. Identify at least five different

    asked by Kasi on August 5, 2010
  57. math solutions

    solve the equation abx=cy for each of following the variable x the variable a the variable c solve the equation ay/x the variable y the variable z the variable x solve each of following for variable y 3y=ab ab=cy ayc=bx bx/y=R zy/x=b

    asked by sherri on October 6, 2008
  58. statistic

    which is true about the response variable? i this used to be called the dependent variable. ii when graphing the data, the response variable is plotted along the x-axis only I only ii both I and ii neither I or ii

    asked by helen on January 14, 2014
  59. statistic

    27. which is true about the response variable? i. this used to be called the independent variable. ii. when graphing the data, the response variable is plotted along the y-axis only i only ii both i and ii neither

    asked by helen on January 14, 2014
  60. statistics

    Job Sat. INTR. EXTR. Benefits 5.2 5.5 6.8 1.4 5.1 5.5 5.5 5.4 5.8 5.2 4.6 6.2 5.5 5.3 5.7 2.3 3.2 4.7 5.6 4.5 5.2 5.5 5.5 5.4 5.1 5.2 4.6 6.2 5.8 5.3 5.7 2.3 5.3 4.7 5.6 4.5 5.9 5.4 5.6 5.4 3.7 6.2 5.5 6.2 5.5 5.2 4.6 6.2 5.8 5.3 5.7 2.3 5.3 4.7 5.6 4.5

    asked by chris on September 21, 2010
  61. 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

    asked by Jenny on January 23, 2008
  62. 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

    asked by Jenny on January 20, 2008
  63. math

    Can someone please double check my answers (My answers are in Capital) 1. If you produce a million products a day and you want to test ten of them to determine if they are up to standard, which ones will you choose? a. The second ten B. TEN RANDOM UNITS c.

    asked by mysterychicken on June 17, 2013
  64. 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

    asked by Jenny on January 25, 2008
  65. Psychology

    Why do you believe that researchers would want to see if there isa correlation rather than just fully testing ech variable?

    asked by Andrea on November 4, 2010
  66. Computer Science

    Suppose X is a random variable and Y = aX + b is a linear function of X. Show that the correlation of X and Y is 1 if a < 0.

    asked by Jerry on October 25, 2013
  67. social psy

    I want to utilize a true experimental design to study the effects of classical music exposure on the cognitive development of newborns. a- What is an independent variable? b- What is a dependent variable? c-What is random assignment? d-Why is random

    asked by deb on October 3, 2011
  68. MATH

    D. Sam and Pete have a job dog-sitting for their neighbor. He pays them $5.00 for each hour they “sit”. Independent_______________________________ Dependent________________________________ I know the answer to independent I just need help with

    asked by Austin on January 3, 2007
  69. statistics

    The data set healthy breakfast contains the ratings of 77 cereals and the number of grams of sugar contained in each searving. A simple linear regression model considering Sugar as the explanatory variable and Rating as the response variable produced the

    asked by Gee on September 13, 2012
  70. math

    8 divided by 3 plus 6= You asked 8 divided by 3 plus 6= (8/3) + 6 = 2(2/3) + 6 or 8/3 + 18/3 = ??/3 I don't understand how to describe pairs of related variables what's the difference between dependent & independent variables I'm not what class your

    asked by kyra on September 19, 2006
  71. independent variable

    What axis do you plot the independent variable and what axis do you plot the dependent variable? It does not matter. However, in the US it has become fashion in public schools and the pablum filled texts to suggest the horizontal axis be the home of the

    asked by Shayn on October 8, 2006
  72. Algebra 2

    Is linear relationship a direct variation? why or why not? Assuming that the line is neither vertical or horizontal, it is a direct relationship. It indicates that one variable increases or decreases directly with changes in the other variable. A vertical

    asked by Stephanie on December 27, 2006
  73. Math

    What is the median of Variable B? Scatter plot on a first quadrant coordinate grid. The horizontal axis is labeled Variable A. The vertical axis is labeled Variable B. Points are plotted at (two, two), (two, eight), (four, three), (five, one), (six,

    asked by Marc-Anthony on January 19, 2016
  74. Math

    What is the median of Variable B? Scatter plot on a first quadrant coordinate grid. The horizontal axis is labeled Variable A. The vertical axis is labeled Variable B. Points are plotted at (two, two), (two, eight), (four, three), (five, one), (six,

    asked by Marc-Anthony on January 19, 2016
  75. Science

    To determine the boing point of a liquid, a student heats 10 mL of the liquid in a test tube and records the temperature every minute for 20 minutes. In this example, time is the what? The choices are: Independent variable dependent variable hypothesis

    asked by Jane on May 22, 2013
  76. Science (2nd Try)

    To determine the boing point of a liquid, a student heats 10 mL of the liquid in a test tube and records the temperature every minute for 20 minutes. In this example, time is the what? The choices are: Independent variable dependent variable hypothesis

    asked by Jane on May 23, 2013
  77. Determining whether expired air contains carbon dioxide

    1.Formulate a hypothesis for this investigation 2.State the aim of this investigation 3. a)Independent variable b)Dependent variable c)Controlled variable 4.State methods and the control

    asked by Michelle on August 23, 2015
  78. psychology

    The researcher's question of correlation between the cost of beer and the number of calories it contains? The researcher's question of correlation between the cost of beer and the volume of alcohol it contains?

    asked by joyce on June 14, 2014
  79. Statistics

    A mathematics education researcher is studying where in high school mathematics texts it is most effective to insert questions. She wants to know whether it is better to present questions as motivation before the text passage, or after the passage. The

    asked by AJ on January 28, 2007
  80. biology need help

    Which variable does the scientists or you deliberately change? Dependent, Independent, control is is independent Which variable does the scientists measure? Dependent, Independent, control is it dependent 6. Which variable remains the same/constant

    asked by loli on October 18, 2013
  81. biology

    Which variable does the scientists or you deliberately change? Dependent, Independent, control is is independent Which variable does the scientists measure? Dependent, Independent, control is it dependent 6. Which variable remains the same/constant

    asked by loli on October 18, 2013
  82. 6th grade math-ms. sue

    MS. Sue here is exactly what the paper says- think back to the experiment you just designed to test the Best Wheels Bike Shop's new super titanium wheel bearings. Can you be sure that your results are due to the new bearings and not something else? That

    asked by m on January 9, 2012
  83. methods of research

    4. Gerontologists interested in the effects of aging on reaction time have two groups of subjects take a test in which they must indicate as quickly as possible whether a probe word is a member of a previous set of words. One group of subjects is between

    asked by Tameka on September 22, 2016
  84. probability

    A fair coin is flipped independently until the first Heads is observed. Let K be the number of Tails observed before the first Heads (note that K is a random variable). For k=0,1,2,…,K, let Xk be a continuous random variable that is uniform over the

    asked by JuanPro on March 28, 2014
  85. financial matters

    Hello I was searching on variable cost, but i could not find nothing that defines How are variable costs handled? can someone one please explained to me how variable costs are handled? thanks a bunch:)

    asked by kiki83 on January 30, 2011
  86. math

    A medical researcher believes that the standard deviation of the temperatures of newborn infants is greater than 0.6 degrees. A sample of 15 infants was found to have a standard deviation of 0.8 degrees. At the 0.10 level of significance, does the evidence

    asked by Ina on October 5, 2014
  87. Stat

    1. For the following scores, X Y 1 6 4 1 1 4 1 3 3 1 Sketch a scatter plot and estimate the value of the Pearson correlation. b. Compute the Pearson correlation 2. For the following set of scores, X Y 6 4 3 1 5 0 6 7 4 2 6 4 a. Compute the Pearson

    asked by Cole Brown on March 4, 2013
  88. 6th grade math

    My son has this homework and I am all confused... the paper says to think back to the experiment you just designed to test the Best Wheels Bike Shop's new super titanium wheel bearings. He did not do this experiment which leads me to believe this is just a

    asked by m on January 9, 2012
  89. math

    A researcher wanted to answer the following question: What is the difference in students' computer anxiety based on whether or not they own computers? The researcher surveyed 92 undergraduate education students via an online survey. In the survey, the

    asked by kathy on June 24, 2012
  90. math

    N=9+x+y-z Where x,y,z are variable representation of some digit (0 to 9) Alok is like to maximize N while Bhanu Is like to minimize it towards this end ,Alok chooses a single digit number and bhanu substitute this for a variable of her choice (x,y or

    asked by reenu on November 8, 2010
  91. math

    determine the resulting equation if one variable is solved in terms of the other variable in one equation and substitute this variable in the other equation. 1.) x=-y+7 x-y= -9 2.) y=2x 4x +3y=20 3.) y=2x +5 3x-2y=5

    asked by Anonymous on November 18, 2014
  92. math

    determine the resulting equation if one variable is solved in terms of the other variable in one equation and substitute this variable in the other equation. 1.) 2x+5y=9 -x+y=2 2.) 3x+y=2 9x+2y=7 3.) x-y=-3 3x +y=19

    asked by Anonymous on November 18, 2014
  93. Science

    In the experiment water clock : what changes (independent variable) , how does it responds to the changes made(dependent variable), and what is being controlled (controlled variable). Pleas I really need this by today. And also my question for science fair

    asked by Daisy on January 19, 2015
  94. psychology

    if there is a positive correlation between the number of computers one possesses and the person’s heart health. what is a third variable (X) that may explain this correlation that is a cause of each one of the two variables. If X goes up the number of

    asked by ashley on September 9, 2011
  95. Chemistry

    In the last part of this experiment, the temperature of tap water was recorded for fifteen minutes as the tap water was heated in a beaker. Identify the dependent and independent variable. (THE TEACHER Just said THE DEPENDENT AND INDEPENDENT VARIABLE but

    asked by Sophia on September 2, 2015
  96. math

    N=x-y-z Where x,y,z are variable representation of some digit (0 to 9) Alok is like to maximize N while Bhanu Is like to minimize it towards this end ,Alok chooses a single digit number and bhanu substitute this for a variable of her choice (x,y or z)also

    asked by Soumava on November 13, 2010
  97. MATH URGENT!!!!

    An investigator was interested in studying the effect of taking a course in child development on attitudes toward childrearing. At the end of the semester, the researcher distributed a questionnaire to students who had taken the child development course.

    asked by Jill on November 21, 2011
  98. Computer Science

    Would like to know if this looks right Write a program that allows the user to input a total dollar amount for an online shopping order and computes and outputs the shipping cost based on the following schedule: Order Total Ship within USA Ship to Canada

    asked by Legendirty on May 10, 2013
  99. Sociology Multiple choice

    Can anyone help me with these questions as I am stuck in these 1. The finding that the number of women reporting physical assaults by their husbands goes up on Super Bowl Sunday may lead to the erroneous conclusion that watching the Super Bowl causes

    asked by Matt on June 12, 2008
  100. Comm Tech

    1.)what does it mean to say that two variables are negatively correlated A.)When one variable increases, the other decreases. B.)When variable increases, the other also C.)When one variable decreases, the other also decfreases D.)Both variables changes at

    asked by YRN DJ on November 11, 2015