Week 9 Measurement Learning Concepts

Describe the features of the standard celeration chart

• calendar based

• ratio scale along y-axis

• multiply/divide scale

what does the standard celeration chart focus

• frequency not % correct

• learning not performance

absolute change is expressing ___ by how much is ___ or ___ to a frequency

growth, added, subtracted

relative change refers to the ___ from one ___ “___” to another; it places __ in context

change, quantity, relative, change

what is the difference between a SCC and absolute chart

SCC does not show individual data points

what the six cycles represent

6 base- 10 multiply cycles, ranging from counts as low as once per 1,000 mins or a full day, up to +1,000 per min

Counting on the chart

• Some numbers don’t have lines

• We estimate the value based on what are counting by

• Not concerned with minor changes in frequency – not detected on a ratio scale

1.        Record floor indicates the ____ of timing/____ period and the ____ non-zero value