1. Epidemiology 2 Digby Tantam Clinical Professor of Psychotherapy, ScHARR Honorary Consultant Psychotherapist and Psychiatrist Honorary Senior Visiting Research Fellow, University of Cambridge
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11. Stem and leaf plots are a way of presenting numerical data. The data found on the left hand side of the solid line is considered the stem, and the numbers on the right are the leaves. This particular stem and leaf plot depicts infant mortality rates in Western Africa. The rates range from 51 to 151. This stem and leaf plot was taken from http://mainland.cctt.org/mathsummer/JosephBond/StemAndPlots/images/table2.gif
19. Scale Level Scale of Measurement Scale Qualities Example(s) 4 Ratio (scale for SPSS) Magnitude Equal Intervals Absolute Zero Age, Height, Weight, Percentage Geometric mean, log transform 3 Interval (scale for SPSS) Magnitude Equal Intervals Temperature 2 Ordinal Magnitude Likert Scale, Anything rank ordered 1 Nominal (categorical) None Names, Lists of words 0 Dichotomous: both nominal, and pseudo-interval None, but can be combined Yes/ No
46. Classification of the trinucleotide repeat, and resulting disease status, depends on the number of CAG repeats [13] Repeat count Classification Disease status <28 Normal Unaffected 28–35 Intermediate Unaffected 36–40 Reduced Penetrance +/- Affected >40 Full Penetrance Affected
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53. Association between hay fever and eczema in 11 year old children 1 From BMJ 2000;320:1468 ( 27 May ) Eczema Hay fever Total Yes No Yes 141 420 561 No 928 13 525 14 453 Total 1069 13 945 15 522