### Abstract

Wakefield's formula for the conversion of the percentage agreement reliability index to coefficient phi can be simplified considerably. Starting from the mathematical properties of a 2 × 2 table, an alternative and simpler formula is derived which provides a more convenient means for the conversion from one index to another. The simplified formula is proven to be mathematically equivalent to Wakefield's.

Original language | English (US) |
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Pages (from-to) | 283-284 |

Number of pages | 2 |

Journal | Behavioral Assessment |

Volume | 6 |

Issue number | 3 |

State | Published - Jun 1 1984 |

### All Science Journal Classification (ASJC) codes

- Psychiatry and Mental health

## Cite this

Suen, H. K., & Ary, D. (1984). Simplified conversion of percentage agreement to phi.

*Behavioral Assessment*,*6*(3), 283-284.