1. Discuss the differences between parametric and nonparametric statistical
techniques. Provide an example of a parametric statistical technique and a
nonparametric statistical technique applying the algorithm in Figure 12-1.
Parametric techniques use interval or ratio levels of measurement and the values
of the subjects for the variable studied are normally distributed.
Nonparametric techniques use nominal or ordinal levels of measurement, and if
the data scores for the study variable are not normally distributed or they are
skewed.
Example of a parametric test at the interval/ratio level for more than two groups
from independent group is the one- way analysis of variance test,
which
assume data is from a
Example of a non-parametric test at the nominal level for one group is the
, 2. What statistical technique was probably conducted for a study focused on
examining associations or relationships that had variables measured at the ordinal
level and included one group? Provide a rationale for your answer.
Spearman rank-order correlation coefficient, Kendall’s tau, Somer’s D
The Spearman rank-order correlation coefficient (Spearman’s correlation, for short) is a
nonparametric measure of the strength and direction of association that exists between two
variables measured on at least an ordinal scale.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Angelicer. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R117,98. You're not tied to anything after your purchase.