When a researcher uses a random sample of 400 to make conclusions about a larger population, this is an example of what?
If a study is comparing a number of falls by age, age is considered what type of variable?
Validity is?
Data is defined as.
The average of the collected data is known as.
The experimental or predictor variable is an example of what?
Level of measurement that defines the relationship between things and assigns an order or ranking to each thing is known as what?
A variable is considered what?
External and internal influences within a study that can affect the validity and reliability of outcomes are called what?
The subset of the population to be studied is called what?