1.10 Multivariate Data

Slideshow going through the PPDAC cycle and the requirements for each part (PPT)

Multivariate Data - detailed notes for each section of the PPDAC cycle (PDF) NOTE: We are no longer using NZGrapher. We will be using iNZight lite instead.

Multivariate Data Information Summary - a really nice one page summary of what is required at each stage of the PPDAC cycle

Vocab List

Writing Comparative Inquiry Questions  Notes (PDF)

Hows my Questions? Activity (PDF) - a chance to look at some different examples of questions and check that they are in an appropriate format. Can you identify the variable, groups and population?

Problem and Plan Practice Activity (PDF) - an example for ballwear spending with a chance for you to try yourself with the marathon data

Problem and Plan Practice Activity (PDF) - an example for ballwear spending with a chance for you to try yourself with the marathon data (same as in Planning section)

Level 1 Multivariate Workbook - ANALYSIS  Workbook (DOC) - this is a really informative workbook which has notes and exercises which will help you to be able to complete the analysis of a multivariate data investigation. It starts by identifying and explaining the features you need to be able to comment on and ends with graphs/data you can practice with.

Analysising and Commenting on Graphical Output Using OSEM  Video (YouTube)

Features of Data - Dot Plots/Histograms (PDF) Notes - this doc explains the features of data which we comment on in the analysis of a multivariate data investigation.

Features of Data - Box Plots Notes (PDF) - this doc explains the features of data which we comment on in the analysis of a multivariate data investigation.

Roller Coaster Analysis Exemplar (PDF) - broken down into sections with some focusing questions a examples 

Roller Coaster - Analysis Exemplar Video (screencastify) ~5mins

Footlength Activity to complete Activity (DOC)

Conclusion Notes (PDF) - this document goes through in detail what needs to be included in the conclusion - it is not just making the call!)

Making the Call at L1 Notes (DOC) - this document shows different combinations of box and whisker plots for group A and group B. It describes how you know what call can be made using the 3/4 - 1/2 rule

Making the Call Practice Exemplar (PDF) - this document has some examples of different examples of making the call using real data with one that you can practice and check your understanding with. You can also check if the investigative questions are right!

Making the call practice (VIDEO)

• Part 1 - making calls we are confident with using 3/4 - 1/2 rule

• Part 2 - using the DBM / OVS to help make calls when we are not so confident with the call made by the 3/4 - 1/2 rule

Making the call (DBM / OVS) Video (YouTube) - this method might be used if you are not confident with the call made using the 3/4 - 1/2 rule

Making the Call using the DBM / OVS  Notes(PDF) - this method might be used if you are not confident with the call made using the 3/4 - 1/2 rule

Sampling Variabilty Notes (PPT) - these slides visually demonstrate sampling variability and the effect of sample size. This is important to consider when we make the call.