What is the difference between a confounding and a lurking variable?
In a lurking variable, two variables become confounded when their effects on a response or dependent variable cannot be distinguished from each other. However, the confounding variable is not only present in the study but is related to the other study variables.Nov 30, 2021
What is a confounding variable in an experiment?
A confounding variable is a third variable that influences both the independent and dependent variables. Failing to account for confounding variables can cause you to wrongly estimate the relationship between your independent and dependent variables.May 29, 2020
What is an example of a lurking variable?
A lurking variable can falsely identify a strong relationship between variables or it can hide the true relationship. For example, a research scientist studies the effect of diet and exercise on a person's blood pressure. Lurking variables that also affect blood pressure are whether a person smokes and stress levels.
How do you identify a confounding variable?
Identifying Confounding In other words, compute the measure of association both before and after adjusting for a potential confounding factor. If the difference between the two measures of association is 10% or more, then confounding was present. If it is less than 10%, then there was little, if any, confounding.
What is a lurking variable quizlet?
Lurking Variable. A lurking variable is an explanatory variable that was not considered in a study, but that affects the value of the response variable in the study. in addition, lurking variables are typically related to explanatory variables considered in the study.
What is meant by confounding?
Confounding means the distortion of the association between the independent and dependent variables because a third variable is independently associated with both. A causal relationship between two variables is often described as the way in which the independent variable affects the dependent variable.Oct 1, 2018
What are examples of confounding variables?
For example, the use of placebos, or random assignment to groups. So you really can't say for sure whether lack of exercise leads to weight gain. One confounding variable is how much people eat. It's also possible that men eat more than women; this could also make sex a confounding variable.
How do you identify a lurking variable?
A lurking variable is a variable that is unknown and not controlled for; It has an important, significant effect on the variables of interest. They are extraneous variables, but may make the relationship between dependent variables and independent variables seem other than it actually is.Sep 16, 2018
What is confounding variable quizlet?
A confounding variable is an explanatory variable that was considered in a study whose effect cannot be distinguished from a second explanatory variable in the study.
What is lurking variable in statistics?
Lurking variable. A variable that is neither the explanatory variable nor the response variable but has a relationship (e.g. may be correlated) with the response and the explanatory variable. It is not considered in the study but could influence the relationship between the variables in the study.
Can gender be a confounding variable?
Hence, due to the relation between age and gender, stratification by age resulted in an uneven distribution of gender among the exposure groups within age strata. As a result, gender is likely to be considered a confounding variable within strata of young and old subjects.Jul 28, 2011