Quantitative 0.0 / 5 ? PsychologyVisual SystemUniversityAll boards Created by: bethhonessCreated on: 24-01-17 14:39 What is skewness? Deviation from symmetry 1 of 9 What is modality? The number of major peaks in a distribution 2 of 9 Unimodal One singular peak 3 of 9 Bimodal Number of major peaks 4 of 9 What is kurtosis peakedness of a distribution (also reflected by variance) 5 of 9 What is the area under a probability density curve? Must be equal to 1. 6 of 9 What is the standard normal distribution? Mean = 0, SD = 1 7 of 9 What is a Z-score Observation - mean / SD 8 of 9 How can normality be assessed 1. by assessing skewness and kurtosis 2. by using specific statistical tests i.e. Shapiro-Wilk or Kolmolgorov-Smirnov Test 9 of 9
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