When there is a _____ relationship, as scores on X increase, scores on Y decrease.

When there is a _____ relationship, as scores on X increase, scores on Y also increase.

A recent study has found that completing a university degree results in greater levels of happiness later in life. When they did further analysis they found that those with a university degree had higher salaries which resulted in greater levels of happiness in life. This is an example of:

One very important factor to consider when designing survey questionnaires for descriptive research is ____________.

What is usually the best kind of observational research to prevent demand characteristics?

You have recently seen a news story on facebook that there has been an increase in both the number of public libraries and the amount of illicit drug use in large cities. The article suggested that this is because libraries are a good place to take drugs. This is an example of:

A researcher who wants to know if the average yearly temperature and the level of crime are related would most likely use what type of study?

An operational confound in correlational research occurs when a measure:

Which of the following is NOT a limitation of observational and descriptive research designs?

The problem of a correlation between two variables both being dependent on another unmeasured variable is called _____ problem.