The other values are not closer to 0 Option d is the appropriate option Answer view the full answer So at zero, there's no correlation. The correlation coefficient indicates the weakest relationship when _____________.a. So I'm gonna write that here direction of correlation. Correlation must not be confused with causality. a. operationalizing b. placebo effect c. random assignment d. random sampling 18. Find out what you don't know with free Quizzes Start Quiz Now! it is negative. So there you go. operationalizing Incorrect. So we write that down here, the further away from zero to either the positive or negative side. Experiment in which both the researcher and the participants are blind to group assignments. Which of the following correlation coefficients indicates the strongest relationship between two variables, The correlation coefficient indicates the weakest relationship when _______, _______ means that everyone in the population has the same likelihood of being asked to participate in the study. The correlation coefficient of 0.846 indicates a strong positive correlation between size of pulmonary anatomical dead space and height of child. Relationship between two or more variables; when two variables correlated, one variable changes as the other does. When you are thinking about correlation, just remember this handy rule: The closer the correlation is to 0, the weaker it is, while the close it is to +/-1, the stronger it is. The correlation coefficient r measures the strength and direction of a linear relationship, for instance: 1 indicates a perfect positive correlation.-1 indicates a perfect negative correlation. The correlation coefficient indicates the weakest relationship when _____. it is closest to -1 Incorrect. So the closer you are to zero, the weaker the correlation. The individuals perform better when they are moderately aroused than when arousal is either very low or very high. 16. Number from -1 to +1, indicating the strength and direction of the relationship between variables, and usually represented by R. Cross-sectional research. Which of the following coefficients of correlation indicates the WEAKEST relationship between two variables? So they're just going in opposite directions when you see a negative correlation and they're going in the same direction when you see a positive correlation. Method of research using past records or data sets to answer various research questions, or to search for interesting patterns or relationships, Reduction in number of research participants as some drop out of the study over time, Changes in one variable causes the changes in the other variable; can be determined only through an experimental research design, Observational research study focusing on one or a few people, Tendency to ignore evidence that disproves ideas or beliefs, Unanticipated outside factor that affects both variables of interest, often giving the false impression that changes in one variable causes changes in the other variable, when, on actuality, the outside factor causes changes in both variables, Serves as a basis for comparison and controls for chance factors that might influence the results of the study-- by holding such factors constant across groups so that the experimental manipulation is the only different between groups. A coefficient of 0 indicates no linear relationship between the variables. A correlation of –1 means the data are lined up in a perfect straight line, the strongest negative linear relationship you can get. So I'm gonna write that down here. Oh no! Pearson's correlation coefficient, when applied to a sample, is commonly represented by and may be referred to as the sample correlation coefficient or the sample Pearson correlation coefficient. What does a correlation coefficient of 0 imply? a. operationalizing b. placebo effect c. random assignment d. random sampling b The other numbers given in the question indicate very weak correlation. Correlation Coefficient. If, as the one variable increases, the other decreases, the rank correlation coefficients … a. it is closest to 0 b. it is closest to -1 c. it is positive d. it is negative 17. it is closest to 0 Correct. This means that as heigh _____ weight_______. The correlation coefficient indicates the weakest relationship when _____ a. it is closest to 0 b. it is closest to -1 c. it is positive d. it is negative 17. For each type of correlation, there is a range of strong correlations and weak correlations. So it doesn't matter if the value is positive or negative, the stronger the correlation. Which of the following coefficients of correlation indicates the WEAKEST relationship between two sets of variables? The correlation coefficient formula finds out the relation between the variables. See below I would say -0.68, but still -0.68 does not indicate a strong correlation. We can obtain a formula for r x y {\displaystyle r_{xy}} by substituting estimates of the covariances and variances based on a sample into the formula above. -The weakest linear relationship is indicated by a correlation coefficient equal to0. 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