Telling Ain't Training, 2nd Edition: Updated, Expanded, Enhanced by Harold D. Stolovitch & Erica J. Keeps

Author:Harold D. Stolovitch & Erica J. Keeps [Stolovitch, Harold D.; Keeps, Erica J.]
Language: eng
Format: epub
Tags: Business & Economics, Training
ISBN: 9781562867010
Google: csR2RPz-lrAC
Publisher: American Society for Training and Development
Published: 2011-11-15T23:44:22.031916+00:00

Chapter 9

Testing or Examining— What’s the Difference?

Importance and benefits of testing

Differences between testing and examining

Explanation of criterion-referenced testing

Job aid for test method selection and creation.

We begin this chapter by teaching you a trick called “Lightning Squares.” Although limited in mathematical range, it is an impressive stunt you can show off to wow your friends and family. What’s great about it is that you don’t have to be proficient at math to do it. The only prerequisite is to be reasonably competent at doing the multiplication tables you learned in primary school.

By the end of this small, fun lesson you will be able to square any two-digit number ending in “5” very swiftly. In other words, in less than 10 seconds, you will be able to give the answer to: 152 or 15 × 15; 252 or 25 × 25; 352 or 35 × 35 … right up to 952 or 95 × 95. Do you have any doubts? Let’s try it out.

What is 352? The answer is 1225.

We got the answer in three seconds. Impressed? Try multiplying 35 × 35. You’ll get the same answer, but it will probably take you from 15 to 45 seconds. How did we do it so fast? Watch this:

Take 352 and break it into 3 and 52. The 52 at the end equals 25 (5 × 5). We now have 3 and 25.

Multiply 3 by (3 + 1) or 4, so multiply 3 × 4. The answer is 12. The answer to 352 is 1225.

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