Exam 7: Basics of Statistical Methods

To understand and systematically evaluate research, it is first imperative to have an understanding of several basic statistical methods and related terminology.

Define ordinal scale and provide an example.

Explain the rationale for when nonparametric statistics are used.

The statistical methods that are used to describe the frequency distribution of ______.

______ is the way scores vary around the mean and are stated as standard units.

Statistics is commonly defined as the science of conducting studies to organize, summarize, and ______ information.

The scale that refers to one in which the researcher has assigned differences based upon ranks to distinct categories is known as ______.

Relationships are descriptions of the extent to which two or more variables is generally defined in nonlinear terms.

______ are defined in terms of symbols, such as letters or words.

Scales defined in terms of equal numbered units and there is a true zero is referred to as ______.

Define nominal scale and provide an example.

Parametric statistics are not used when the data are essentially based on normal distribution.

Discuss the four basic assumptions of inferential statistics.

______ assumption required to complete inferential statistics states that scores are similar in how they vary from the mean.

Inferential statistics are those based on probabilities of the data being representative of the population.

______ refers to a symmetrical bell-shaped curve.

One thing that is sometimes confusing is that the same variable can be collected at different levels of measurements.