A correlation coefficient of 0 between a memory task and memory test performance means that there is: A.a strong negative relationship between the two variables.B.a strong positive relationship between the two variables.C.a perfect positive relationship between the two variables.D.no relationship between the two variables

Understand what is meant by positive, negativeand zero correlation

Which of the following are measured by correlation coefficienta.Linear association between two random variablesb.Direction of relationship between two variables (positive or negative association)c.A unit free value for the strength of linear relationship between two random variablesd.All of the above

It presents that as the value of one measure increases, the value of the other measure decreases.Select one:a.correlation coefficientb.negative correlationc.positive correlationd.zero correlation

Correlation analysis measures the association between two or more variables.Answer instructionsTrueFalse

An experimenter computing the correlation between age and memory span wouldQuestion 8Answera.be able to show that old age produces a decrease in memory span.b.be able to determine whether there is a relationship between age and memory span.c.make an error because age and memory span are measured on different scales.d.be able to determine that a third variable was involved.