Kinesiology 2032A/B Lecture Notes - Lecture 11: Escape Room, Internal Validity, Variance

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2032A/B
• Professor: Lindsay Nagamatsu

Document Summary

2 or more categories that have no numerical (less than, greater than) properties. Categories or groups simply differ from one another. Ex. gender, classification of undergraduates according to major. In an experiment, independent variable often nominal. Measurement categories form a rank order along a continuum from first to last. Intervals b/w #s on the scale are all equal in size. Difference b/w the #s on the scale is meaningful. The intervals b/w the #s are equal in size. Ex. difference b/w 1 and 2 is the same as b/w 2 and 3. The difference in temp b/w 5 and 10c is the same as b/w 25 and 30. There is no absolute zero (ex. absence of temp) The zero is an arbitrary reference point. Therefore, cant form ratios (one # on the scale doesn"t represent twice as much as another #) Theres an absolute zero point, indicating an absence of the variable being measured.