Statistical Reasoning In The Behavioral Sciences 5Th Edition

Substantially revised and updated, the fifth edition of statistical reasoning reflects the changes that have occurred in the field of psychological statistics over the past decade. This revision has been made with an eye towards the statistics student, focusing on conceptual growth. The text develops an understanding of statistical logic and procedures, the properties of statistical devices, the importance of the assumptions underlying statistical tools, and an understanding of what happens with the strict requirements of statistical theory meet the circumstances of real-world data. · introduction. · frequency distributions, percentiles, and percentile ranks. · graphic representation of frequency distributions. · central tendency. · variability and standard (z ) scores. · standard scores and the normal curve. · correlation. · prediction. · interpretive aspects of correlation and regression. · probability. · random sampling and sampling distributions. · introduction to statistical inference: testing hypotheses about single means (z and t ). · interpreting the results of hypothesis testing: effect size, type i and type ii errors, and power. · testing hypotheses about the difference between two independent groups. · testing for a difference between two dependent (correlated) groups. · inference about correlation coefficients. · an alternative to hypothesis testing: confidence intervals. · chi-square and inference about frequencies. · testing for differences among three or more groups: one-way analysis of variance (and some alternatives). · factorial analysis of variance: the two-factor design for independent groups. · some (almost) asumption-free tests.