ISBN-13: 9781489977625 / Angielski / Miękka / 2017 / 783 str.
ISBN-13: 9781489977625 / Angielski / Miękka / 2017 / 783 str.
With new chapters on data analysis and multi-level models, and fresh exercises in SPSS and Stata, this fourth edition provides a solid introduction to the topic. Real-life examples show how statistical results are influenced by differing research methods.