Corrigendum: Simulation Studies as a Tool to Understand Bayes Factors

Original article: van Ravenzwaaij, D., & Etz, A. (2021). Simulation studies as a tool to understand Bayes factors. Advances in Methods and Practices in Psychological Science, 4(1). https://doi.org/10.1177/2515245920972624

Two typographical errors appeared in the code block at the bottom of the left column and the top of the right column on page 8 of this article. In two lines, a less-than symbol (<) appeared where there should have been a greater-than symbol (>). These errors have now been corrected. The original code block read as follows:

# Set the limits of our bin that is .5 wide

Bin = c(0, 0.5)

# Proportion of null-generated sample

# effect sizes within the bin limits

Nulls = mean (Sample0<Bin[1] & Sample0<

Bin[2])

# Proportion of alternative-generated

# sample effect sizes in bin limits

Alts = mean (SampleA<Bin[1] & SampleA<

Bin[2])

# Approximate BF given by ratio of the

# two proportions

BF0A = Nulls / Alts

The code block has been revised to read as follows:

# Set the limits of our bin that is .5 wide

Bin = c(0, 0.5)

# Proportion of null-generated sample

# effect sizes within the bin limits

Nulls = mean (Sample0>Bin[1] & Sample0<

Bin[2])

# Proportion of alternative-generated

# sample effect sizes in bin limits

Alts = mean (SampleA>Bin[1] & SampleA<

Bin[2])

# Approximate BF given by ratio of the

# two proportions

BF0A = Nulls / Alts