Psychology 253

I have included graphs and tables to make the concepts, definitions and examples more understandable. All the required formulas are included as well as detailed examples to show you how to apply each of them. Please note that these summaries were written in 2017 and thus may not be up-to-date with the current course content.

Chapter one summarizes the introduction to Statistics which include mostly definitions, for example; Population, Population parameter, Sample, Sample statistic, Measurement instrument, Statistical inference, Target population. This chapter also covers the types of sample errors as well as the important stages taken place within the standard research cycle. Chapter two summarizes the different types of variables (and their measurement scales) and the types of data. This chapter also covers freq...

Data Descriptors in chapter 3 summary covers the measure of central tendency (mean, median, mode and percentiles and quartiles). This summary also covers the measures of dispersion (including the range, interquartile range and semi-interquartile range, the standard deviation and variance).