PSYC 1010 Chapter Notes - Chapter 3: Bar Chart, Line Graph, Histogram

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1010
• Professor: Mark Mc Cullagh

Document Summary

How to identify independent & dependent variables. Visual displays present the story of the data quick and easily: convey complex information without lengthy descriptions, reveals relationships among variables. Misleading with data: the false face validity lie. Method seems to represent what it says, but may not actually: the biased scale lie. Scaling to skew the results: the sneaky sample lie. When participants are preselected to provide the desired data: the extrapolation lie. Assumes knowledge outside of the study: the inaccurate values lie. Using scaling to distort portions of the data: the outright lie. Show relationship between two scale variables: if non-co relational methods, iv = x-axis & dv = y-axis. Helps us to determine if two variables have: linear relationship, non-linear relationship. Line of best fit on scatter plot: y = a + b(x) Dv = scale (interval or ratio); (y-axis). Best for comparing a few categories only.