Your 'timer program' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Your General Comment **
** Describe what you see on your first 10 clicks **
I see 3 columns of #'s. The first shows the # of times I clicked the mouse. The second looks like a randomly generated list of numbers in increasing #. The third shows how much greater the second # is than the one preceding it.
** Your TIMER data from 20 fast clicks **
1 765.1836 765.1836
2 765.4023 .21875
3 765.6523 .25
4 765.8711 .21875
5 766.1328 .2617188
6 766.4023 .2695313
7 766.6719 .2695313
8 766.9531 .28125
9 767.2695 .3164063
10 767.5508 .28125
11 767.8516 .3007813
12 768.1328 .28125
13 768.4531 .3203125
14 768.7422 .2890625
15 769.0313 .2890625
16 769.332 .3007813
17 769.6406 .3085938
18 769.9297 .2890625
19 770.2305 .3007813
20 770.5586 .328125
** Your average time interval for 20 time intervals **
.2780143
I added all of the intervals together and divided by 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.21875, 2
.25,1
.2617188, 1
.2695313, 2
.28125, 3
.2890625, 3
.3007813, 3
.3085938, 1
.3164063, 1
.3203125, 1
.328125, 1
** Your general comment to this point **
Were we supposed to use the 1st number listed?
In general the first time interval will not correspond to the thing you are timing. Only use the clock times and intervals that correspond to the system being observed.
** Why did you observe only certain time intervals? **
No it just means that it can't detect data that is too precise.
** What did you see when you looked at the differences between time successive time intervals? **
It's like a rhyme scheme to a poem in english - aabaccbab
There is a pattern shown.the first to repeat then a new number is shown then the first repeats again. Then a new number is shown twice. etc.
** Your time intervals for 7 complete breaths: **
5.859375
5.398438
4.15625
4.878906
4.40625
3.832031
5.738281
4.804688
5.570313
** Your general comment to this point: **
i may have done that a little to fast.
Your intervals are in the range of what most students report.
** Why did you rarely, if ever, observe that same time interval twice? **
because the program is more capable of detecting when there is increased time between intervals.
** Do you think this program is accurate to .1 or .01 ... **
c. because any faster and it would just repeat the the previous number. ie. from the the first trial...
.2617188
.2695313
.2695313
.28125
** Copy of a few lines of your spreadsheet from the TIMER program. **
series of regular breaths time at beginning of inhalation
event number clock time time interval
1 2.707031 2.707031
2 8.566406 5.859375
3 13.96484 5.398438
4 18.12109 4.15625
** **
about 1 hour
** **
This looks very good.