under T-Tests & Statistics A-Z A dichotomous variable is a variable that contains precisely two distinct values. Let's first take a look at some examples for illustrating this point. Next, we'll point out why distinguishing dichotomous from other variables makes it easier to analyze your ...
In general, if you are studying the effect of a certain factor or the outcome of an experiment, the effect or outcome is the dependent variable. If you measure the effect of temperature on flower color, temperature is the independent variable—the one you manipulate—while the color of the ...
Multicollinearity is a concept in statistical analysis, where several independent statistics correlate. Multicollinearity can lead to skewed or confusing results if they appear in your project when you attempt to find the most dependable variable from amongst your various statistics. Learning about this ...
In practical terms, every factor of a number is also a divisor of that number since it divides the number without leaving a remainder. However, the term "divisor" can be used in broader mathematical contexts, not limited to integers. For example, 1.5 is a divisor of 4.5, but it's not...
In factor investing, each factor has a straightforward concept. For instance, the idea behind value is that over the long term, investing in undervalued stocks tends to yield better returns than investing in more expensive ones. The same general framework applies to the other factors as well: ...
anovaandmanovanow use Stata's new factor-variable syntax, which means new estimation and postestimation features and a few changes to what you type. In other estimation commands, covariates are assumed to be continuous unlessi.is specified in front of variable names. Inanovaandmanova, covariates...
Data management: How do I check a variable for a range of diagnosis or procedure codes? (Updated 26 June 2017) Data management: How do I convert my ICD-9 codes from a string type to a numeric type? (Updated 26 June 2017) Statistics: What is the difference between "endogeneity" and...
In a scientific experiment, a variable is any of the conditions that could change, or vary, during the course of an experiment. When you set up an experiment, you need to keep all of the variables identical, except for the one being tested, called the independent variable. This means ...
What is a test statistic?Question:What is a test statistic?Test Statistics:In psychology and other fields of scientific inquiry in which statistical analyses are conducted, one type of information is called a test statistic. These include the t-statistic.Answer...
of a judgment of infinite exchange ability or partial exchange ability in which parameters are defined by limits of certain statistics.Although Bayesian formulations are not the primary focus of this paper, the notion that the model is extendable to a sequence, usually infinite, is a key concept...