This looks very good. I like a lot of your wording, especially regarding the idea of the timeline. A few simple editing comments: "" the clock time to get from 30 seconds to 7.5 seconds would be 70 seconds"" should read "" the clock time to get from 30 centimeters to 7.5 centimeters would be 70 seconds"" Your sentence ""Show your timeline in comma delimited form up to the decay to 2.5cm amplitude"" would probably be clearer if you eliminated ""up to the decay"". The sentence ""Show your timeline in comma delimited form up to 2.5cm amplitude"" seems to make your meaning clear. I would change ""default paper"" to ""default graph paper"" and also mention that the analyzer can construct his or her own graph on any paper, as long as it's accurately and carefully constructed, but that the graph paper might be more convenient. ""Describe the line"" should probably read ""Describe the line or curve"" ""start at one of the following amplitudes to decay to half"" seems to indicate that only one amplitude should be picked. I would suggest ""start at each of the following amplitudes to decay to half"". Make the changes you choose to make, as you choose to make them, after which you're ready to send this on. From: Sent: Wednesday, December 05, 2012 10:40 PM To: David Smith Subject: Re: Supervised Study Fall 12: Group 1 Analysis Here is what I propose: 1. For each amplitude decay segment (e.g. 30 cm to 10 cm) find the mean of the two trials. 2. Using the mean for each amplitude decay segment construct a timeline as if each segment was part of one continuing trial. For example if the decay segment from 30cm to 10 cm took 50 seconds and the segment from 10 to 7.5 took 20 seconds, the clock time to get from 30 seconds to 7.5 seconds would be 70 seconds. You could show this in comma delimited form as 50 sec, 10cm 70 sec, 7.5 cm Show your timeline in comma delimited form up to the decay to 2.5cm amplitude. 3. Plot a graph of amplitude vs. clock time.( If you have a printer, you can use the default paper at http://www.printfreegraphpaper.com/ . The 1/4-inch grid would work well). Be careful and make sure the graph show the time that would have elapsed if all of the trials were part of one continuing trial. ( to clarify, in the example above the clock time when the amplitude decays to 7.5cm would be 70 seconds) 4. Does the graph suggest a linear function or a smooth curve? 5. Describe the line. 6. Based on the graph give estimates of what you would expect the time interval it would take for a start at one of the following amplitudes to decay to half of that amplitude (e.g for 30cm, what would be the time interval to decay to 15cm): 30cm, 25cm, 20cm, 15cm, 10 cm. Give you answers in five lines in comma delimited form first the starting amplitude and then the time interval. Thanks for your help.