I Tests of Hypotheses for Nominal or Ordinal Levels of Measurement

question 27

Multiple Choice

i. Tests of hypotheses for nominal or ordinal levels of measurement are called nonparametric or distribution-free tests. ii. There is not one, but a family of chi-square distributions. There is a chi-square distribution for 1 degree of freedom, another for 2 degrees of freedom, another for 3 degrees of freedom, and so on.
iii. The shape of the chi-square distribution depends on the size of the sample.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

---

Definitions:

Stimulus Presentation

The method or manner in which a stimulus is shown to a participant in a study, affecting their reactions or responses.

Milliseconds

A unit of time equal to one thousandth of a second, often used to measure the time of quick processes or reactions.

Attention Hypothesis

A theory suggesting that the ability to pay attention to specific stimuli or tasks is a critical factor in cognitive performance and learning.

Automatization

The process by which a task becomes automatic after extensive practice, requiring less cognitive effort to perform.