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JOINT ANALYSIS LESSONS LEARNED CENTRE NATO'S LEAD AGENT JOINT ANALYSIS

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Statistical Analysis<br />

Notes<br />

Where to Find Statistical Analysis Help<br />

The Joint Analysis Handbook (Reference E) gives information about<br />

statistical analysis. Additionally, Excel provides information in its Help file<br />

(press F1 or select the help menu and search for “statistical analysis”).<br />

Also, do not hesitate to ask for help—for example, most professional<br />

operational analysts love to show off their prowess at statistics!<br />

Statistical analysis is a field of mathematics related to drawing<br />

conclusions about a large population based on limited sample data. All<br />

LLSOs should have some familiarity with statistical methods and be able<br />

to summarize data with descriptive statistics.<br />

Basic Statistics for a LLSO<br />

A LLSO should have some understanding of:<br />

<br />

<br />

<br />

<br />

The distinction between qualitative variables (either categorical, e.g.<br />

military services, or ordinal, e.g. military rank) and quantitative<br />

variables (numbers).<br />

Descriptive statistics including: range, mean, mode, median,<br />

standard deviation, quartiles, etc., and how to find them using a<br />

calculator or a spreadsheet application.<br />

Proportions, ratios, and percentages.<br />

Data representation using pie charts, bar charts, histograms and x-y<br />

scatter plots and determining which is most appropriate for your<br />

data.<br />

Six Thinking Hats<br />

The six thinking hats method is used to explore an issue using the six<br />

main modes of thinking, ultimately giving you different points of view. A<br />

technique for a group, it supposes the existence of six hats in different<br />

colours, each one representing a different way of thinking. When you<br />

figuratively put on one of the hats, it is mandatory to think only in that<br />

particular way. Each person selects a hat and ideas are discussed. Hats<br />

are then changed until everyone in the group has worn all six hats. At<br />

the end of the session, the participants record their ideas and apply them<br />

to solving the problem.<br />

Plus/Minus/Interesting<br />

Plus/Minus/Interesting is a variation on the more common advantages<br />

and disadvantages technique, by introducing a third category:<br />

interesting. The interesting category is used to record all possible<br />

outcomes and implications of adopting a strategy, whether positive<br />

(advantage), negative (disadvantage), or uncertain.<br />

Pairwise Comparison Analysis<br />

Pairwise comparison is used to support course-of-action analysis and<br />

compares each possible pair of possible solutions (courses of action)<br />

against a number of factors. It is a good way of weighing the relative<br />

importance of the different courses of action against one or more factors<br />

and is useful when priorities are not clear.<br />

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