A frequency histogram and a dot plot prompt good appreciation of a data set. The ESCI software makes it easy to explore such data pictures. Copyright 2013 Geoff Cumming / La Trobe University, all rights reserved. Contact for permissions.

ESCI presents the mean, median, and standard deviation, using pictures to give good understanding. Copyright 2013 Geoff Cumming / La Trobe University, all rights reserved. Contact for permissions.

See the beautiful bell-shaped picture of the normal distribution, and explore using ESCI. Copyright 2013 Geoff Cumming / La Trobe University, all rights reserved. Contact for permissions.

ESCI simulations introduce random sampling from a normal population. Enjoy the dance of the means. Copyright 2013 Geoff Cumming / La Trobe University, all rights reserved. Contact for permissions.

ESCI simulations illustrate that the standard error is the standard deviation of the sampling distribution of the sample mean. Copyright 2013 Geoff Cumming / La Trobe University, all rights reserved. Contact for permissions.

Enjoy the dance of the confidence intervals, which is the basis of statistical estimation. Copyright 2013 Geoff Cumming / La Trobe University, all rights reserved. Contact for permissions.

Confidence intervals are highly informative, and give the best basis for interpreting research results. Copyright 2013 Geoff Cumming / La Trobe University, all rights reserved. Contact for permissions.

Traditional null hypothesis significance testing (NHST) has severe problems. Statistical cognition provides evidence that it is much better to use estimation and not NHST. Copyright 2013 Geoff Cumming / La Trobe University, all rights reserved. Contact for permissions.

ESCI simulations demonstrate the enormous variability of the p value. Don't trust p! The dance of the p values is enormously wide, simply because of sampling variability. Estimation is way better than NHST. Copyright 2013 Geoff Cumming / La Trobe University, all rights reserved. Contact for permissions.

Meta-analysis is the integration of evidence from a number of studies on the same or similar questions. See the forest plot, which is a beautiful picture that summarises a meta-analysis. Copyright 2013 Geoff Cumming / La Trobe University, all rights reserved. Contact for permissions.