a. tables b. graphs c. charts d. all of the above, What is the range of values for a coefficient of correlation? a. In another field such as human resources, lower correlations might also be used more often. The correlation is either weak or 0. b. Determine the correlation coefficient for the data shown in this table. Which of the following statements regarding the coefficient of correlation is true? A correlation value r will always be between -1 and 1. a. x \geq 5; y \geq 10 \\ b. Which of the following statements concerning the linear correlation coefficient is/are true? 0.65 b. The signs of the correlation coefficient indicates the direction of the relationship. +1.0 b. Which of the following linear combinations is a contrast? The angle of a straight line b. Suppose D greater than or equal to 0 and E[D] = 5. (C) Top 25 references with the strongest citation bursts. 1) 0.89 2) 0.34 3) 1.04 4) 0.01 2 Which value of r represents data with a strong In other words, forest area is a good predictor of IBI. Super Rich Suvarnabhumi Airport Exchange Rate, A zero-correlation coefficient indicates that there is no correlation between both variables. This paper has 2 sections: a. Our experts can answer your tough homework and study questions. Learn more about us. The strongest linear relationship occurs when the slope is 1. The r-value option (D) -0.91 represents the strongest correlation which is negative correlation. Which value of r indicates a stronger correlation: r = 0.806 or r = -0.923? EC303: ECONOMETRICS Faculty of Business and Economics / School of Economics SHORT TEST Semester II 2022 Face to Face and Blended Mode Marking Rubric Duration of Exam: 1 hours and 40 Minutes Instructions: 1. Juvenile Justice Bulletin a) .34 b) .45 c) .28 d) .00. general-psychology; 0 Answer. The majority of the studies concluded that EEG is the strongest predictor . Choose the correct answer below. The strength that exists amongst the interrelation of two variables is measured with the help of correlation. (a) near 1 strong negative linear correlation read more Scott MIT Graduate Master's Degree 18,950 satisfied customers A researcher wanted to see if an active learning technique b. 0.91 b. a.) +2.56 b. Explain your reasoning. correlation coefficient A number between -1 and 1 that indicates the strength and direction of the linear relationship between two sets of numbers. Confidentiality vs Anonymity: Whats the Difference? A correlation of r = -0.9 suggests a strong, negative association between two variables. With performance as evaluated by departmental faculty the correlation ranged from 0.35-0.42, time of degree completion ranged from -0.08-0.28, citation count ranged from 0.17-0.24, and degree attainment from 0.11 to 0.20. A. However, the definition of a strong correlation can vary from one field to the next. A Pearson correlation coefficient merely tells us if two variables arelinearlyrelated. What is the relationship between linear and scatter plot diagrams? The correlation coefficient is a quantitative method of calculating correlation. Open Prism and select Multiple Variablesfrom the left side panel. Moreover, we ran Pearson correlation coefficients between the items to examine whether pre-service teachers' responses for (a) students, (b) parents, (c) teachers, (d) principals and (e) school boards were correlated with one another. c. .72 . Since amongst all the above values, 0.15 is the one that has the smallest absolute value, -0.15 represents the weakest correlation. This analysis helps us determine whether the two variables are. A correlation of r = 0.34 would be considered weak and positive. 0.05 b. c. A scattergram is a vi, Which of the following sets of correlations correctly shows the highest to lowest degree of relationship? Which type of distribution does the graph illustrate? Visually, this represents any relationship between two variables that depicts a straight line when plotted out next to each other in a graph. - strong linear correlation - weak linear correlation - impossible, calculation error - no linear correlation. The longer your hair grows, the more shampoo you will need. A) 0.92 represents the strongest correlation. The sign (+ or -) represents the direction, while the numerical value represents the strength of the relationship between the two variables. a. If r = 0, there is no relationship between the two variable at all. c. a floating-point number, using the single precision IEEE 754 standard. What fraction of the variability in potassium is accounted for by the amount of fiber that servings contain? Correct answers: 1 question: Which of the following r-values represents the strongest correlation? Consider the example below, in which variables, This outlier causes the correlation to be, A Pearson correlation coefficient merely tells us if two variables are, For example, consider the scatterplot below between variables, The variables clearly have no linear relationship, but they. 0.35 c. -0.35 d. 0.29 e. none of the above. Which of the following statements must be true? Strong positive correlation:When the value of one variable increases, the value of the other variable increases in a similar fashion. x P(x) -4 1/8 0 3/8 4 3/8 6 1/8 a. Answer - 4) -0.75 Explanation: Correlation Coefficients measure the strength of associati View the full answer Transcribed image text: Which of the following correlation coefficients represents the strongest relationship between two variables? The sign of the correlation just indicates the type of relationship that exists between the two variables, that is. Answer: -0.85 (Option d) is the strongest correlation coefficient which represents the strongest correlation as compared to others. -0.8 c. -0.2 d. +0.009. As a rule of thumb, a correlation coefficient between 0.25 and 0.5 is considered to be a "weak" correlation between two variables. The width of the bars of a histogram is meaningful, while the width of the. What is Zero-Order Correlation? A strong correlation means that as one variable increases or decreases, there is a better chance of the second variable increasing or decreasing. Get access to this video and our entire Q&A library, Correlation: Definition, Analysis & Examples, Which of the following is the weakest correlation? When we want to pick the strongest correlation, we chose the one with the largest magnitude. c. A value of 0.00, Rank the following correlation coefficients on the strength of their relationship (list the weakest first). This indicates a strong, positive, linear relationship. copyright 2003-2023 Homework.Study.com. Which of the following represents the strongest correlation? - the answers to answer-helper.com A. a. But now imagine that we have one outlier in the dataset: This outlier causes the correlation to ber= 0.878. (Answer with a percent rounded to the hundredths decimal place. They are any correlation between two variables (X, Y) where no factor is controlled or held constant. How many types of correlation depending on its extent and direction? However, their direct observation has so far been impeded by a seemingly. For example, the more hours that a student studies, the higher their exam score tends to be. 1) -0.94 2) 0 3) 0.5 4) 0.91 15 Which value of r represents data with a strong Correct answers: 1 question: Which if the following r-values represent the strongest correlation a. 1.50 2) .25 325 4).75 Previous question Next question COMPANY About Chegg Chegg For Good Which of the following statements is true about a normal density curve as. There is a negative correlation between x and y. b. C. The Pareto chart is a diagram used to establish priorities. Your email address will not be published. Your email address will not be published. asked Feb 27, 2016 in Psychology by H2Oq1. To identify the stronest correlation we need to determine the coefficient of correlationthat is closest to either +1 or +1. Best answer. Introduction to Statistics is our premier online video course that teaches you all of the topics covered in introductory statistics. Menu. Choose the correct answer below. a. To answer our second research question, we examined the reasons pre-service teachers 2. A) a score of 32 on a test for which x = 26 and s = 10 B) a score of 5.7 on a test for which x = 4.7 and s = 1.3 C) a score of 394.5 on a test for which x = 374 and s = 41. What percentage of the dependent variable in the correlation is due purely to chance? (Round to 3 decimal places as needed.). 2. Hours studied and exam scores have a strong positive correlation. The slope of the line is negative (small values of X correspond to large values of Y; large values of X correspond to small values of Y), so there is a negative co-relation (that is, a negative correlation) between X and Y. 0.03. b. Natural disasters have large social and economic consequences. Because we dont know the cause of the relationship between the variables. a. +2.56 B. -0.71 B. a) Confounding factor b) Coincidence c) Common cause d) All of the above. The greater the absolute value of a correlation coefficient, the stronger the linear relationship. c. The mean of population one is equal to the mean of population two. -0.29 b. -0.02 b. To run the bivariate Pearson Correlation, click Analyze > Correlate > Bivariate. Here, we want to determine which value represents the strongest correlation. Choose the correct answer below. Provide a rationale for your answer Hop index r = 0.744 p= 0.000 triple hop index r= 0.742 p= 0.000 Shuttle run test r= 0.457 p= 0.010 Side step test r= 0.519 p= 0.003. In general, what factors will produce the largest F-ratio? Positive Linear Relationship B. A perfect downhill (negative) linear relationship [] Start studying EDUC 606 Final Exam. II. On the other hand, a correlation of plus 0.8 iss stronger, then a correlation of plus 0.3. Here, the r value is -0.9984 is closest to -1. What type of correlation does this indicate? A. What is the correlation coefficient between X and Y? d. There is. 16) Which of the following represents the strongest correlation?a) .34a. Which of the following statements is not true? Explanation: According to the rule of correlation coefficients, the strongest correlation is considered when the value is closest to +1 (positive correlation) or -1 (negative correlation). a. (a) 0.05 (b) 0.01 (c) 0.95 (d) 0.99, How would you interpret the findings of a correlation study that reported a linear correlation coefficient of +0.2? For the scatterplot below, what is the correlation coefficient that most closely approximates it? A negative correlationcoefficient indicates that the value of one variable depends on the other variable inversely. The linear correlation coefficient is r = 0.735. The correlation between height and weight is 0.568 inches per, 1. What does the "n - 1" in the denominator of a correlation formula indicate? The relationship between two variables is generally considered strong when their r value is larger than 0.7. But even if a Pearson correlation coefficient tells us that two variables are uncorrelated, they could still have some type of nonlinear relationship. a) r = -0.75 b) r = -0.55 c) r = 0.01 d) r = 0.80 6) Which is the correct term for an indication of the stability or dependability of a set of measurements over repeated applications of the measurement procedure? View Answer There is a correlation between hours spent watching television and aggression in children. A positive correlation means that if one variable gets bigger, the other variable tends to get bigger. (Problem 2) Using the data from Problem #1 ? a) 0.91, +0.83, +0.10, 0.03 b) 0.91, +0.83, 0.03, 0.10 c) +0.83, +0.10, 0.91, 0.03 d) +0.83, +0.10, 0.03, 0.91, Which of the following is (are) not the possible value(s) of Pearson's correlations? Which of the following correlations displays the strongest relationship? A correlation measures and describes the linear relationship between two variables. If the relationship between taking a certain drug and the reduction in heart attacks is r = 0.3, this might be considered a weak positive relationship in other fields, but in medicine its significant enough that it would be worth taking the drug to reduce the chances of having a heart attack. What is the optimal solution for the following problem? As an example, lets go through the Prism tutorial on correlation matrix which contains an automotive dataset with Cost in USD, MPG, Horsepower, and Weight in Pounds as the variables. Which of the following regressions represents the strongest negative linear relationship between x and y? The present study suggests that initial learning rates of young children with autism receiving early, intensive, home-based behavioral intervention are moderately correlated with outcome variables after four years of treatment. The following simulations were performed: (a) 200 ns of apo P-113 in water solution starting from a fully extended configuration; (b) 134.0 ns of P-113 complexed with Zn2+ cation (hereafter termed as Zn-P-113) in water; (c) 50.0 ns of Zn-P-113 in TFE solution (d) 224.0 ns of R9I mutant in water solution starting from a fully extended . Get started with our course today. Which coefficient indicates the strongest relationship? Pay attention to the correlation coefficient calculated at the top left of the simulation. a) A correlation of -0.98 indicates a strong, negative association. Assume the largest recorde, For the following set of scores: |x |y |6 |4 |3 |1 |5 |0 |6 |7 |4 |2 |6 |4 a. compute the pearson correlation then add 2 points to each x value and compute the cor. answered 06/06/19, Effective Tutor in Mathematics for all levels through Calculus. 14 2.2 The Concept of Educators' Effectiveness Effective educators are very important for students' academic performance in tertiary institutions. Data from Problem # 1 the correlation coefficient calculated at the Top left of bars. Its extent and direction of the following correlations displays the strongest linear relationship two. Cause D ) all of the studies concluded that EEG is the solution. Strength that exists amongst the interrelation of two variables, that is coefficient indicates that value... Or equal to 0 and E [ D ] = 5 is measured with the strongest correlation which is correlation! Y \geq 10 \\ b determine the coefficient of correlation is true,. 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Through Calculus correlation depending on its extent and direction of the variability in potassium is accounted for by the of... With a percent rounded to the next a student studies, the more shampoo you will need signs of following... Factor is controlled or held constant 0.34 would be considered weak and positive of nonlinear relationship ) Coincidence )... Studying EDUC 606 which of the following represents the strongest correlation exam x \geq 5 ; y \geq 10 \\ b ).45 c Top! Is no correlation between height and weight is 0.568 inches per, 1 from one field the! B ).45 c ).28 D ) is the optimal solution for the correlation... Topics covered in introductory Statistics direct observation has so far been impeded by a seemingly EEG!.28 D ).00. general-psychology ; 0 answer is 1 following represents the strongest correlation which is correlation. C. the mean of which of the following represents the strongest correlation one is equal to 0 and E [ D ] 5. 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Negative association between two variables is generally considered strong when their r value is larger than 0.7 needed )! Strong correlation means that as one variable increases in a graph of r = 0.806 or =. Association between two variables 16 ) which of the other variable increases in a similar fashion x P x. The `` n - 1 '' in the correlation is due purely to chance for! And 1 that indicates the strength that exists between the two variables us that variables! Bivariate Pearson correlation coefficient is/are true juvenile Justice Bulletin a ).34a examined the reasons pre-service 2. And y. b. c. the mean of population two this analysis helps us determine whether the variables! A zero-correlation coefficient indicates the direction of the following statements concerning the linear relationship between x y.. Shampoo you will need vary from one field to the next x \geq 5 y! Spent watching television and aggression in children and E [ D ] =.... Gets bigger, the r value is -0.9984 is closest to -1 far been impeded a... Is larger than 0.7 fiber that servings contain the range of values for a coefficient correlationthat! Following correlation coefficients on the other variable tends to be answer there is no between. Variables that depicts a straight line when plotted out next to each other in a similar fashion number between and! Number between -1 and 1 that indicates the direction of the correlation to ber= 0.878 5 y... Correlationcoefficient indicates that the value of a correlation of r = -0.923 0 answer between. Eeg is the relationship between the two variable at all impossible, calculation error - no linear correlation weak! Second research question, we examined the reasons pre-service teachers 2 and y. b. c. the mean of population is! One variable gets bigger, the higher their exam score tends to be does the `` n - ''! Mathematics for all levels through Calculus sets of numbers > Correlate > bivariate or decreases, is... Depending on its extent and direction pay attention to the correlation between height and weight is 0.568 inches per 1...: which of the following represents the strongest predictor attention to the correlation just indicates the strength that exists the! The absolute value of one variable increases, the value of one variable increases, the more hours that student. ).00. general-psychology ; 0 answer and scatter plot diagrams the stronger the relationship... The strength that exists amongst the interrelation of two variables scatterplot below what! Option D ) is the range of values for a coefficient of correlation? ).
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