# Nonoverlap of all Pairs

### Description

The `nap`

function calculates the nonoverlap of all pairs (NAP; Parker & Vannest, 2009). NAP summarizes the overlap between all pairs of phase A and phase B data points. If an increase of phase B scores is expected, a non-overlapping pair has a higher phase B data point. The NAP equals *number of pairs showing no overlap / number of pairs*. Because NAP can only take values between 50 and 100 percent, a rescaled and therefore more intuitive NAP (0-100%) is also displayed.

### Usage

1 |

### Arguments

`data` |
A single-case data frame. See |

`decreasing` |
If you expect data to be lower in the B phase, set |

### Value

`NAP` |
Nonoverlap of all pairs. |

### Author(s)

Juergen Wilbert

### References

Parker, R. I., & Vannest, K. (2009). An improved effect size for single-case research: Nonoverlap of all pairs. *Behavior Therapy, 40*, 357-367.

### See Also

`overlapSC`

, `describeSC`

, `pand`

, `pem`

, `pet`

, `pnd`

### Examples

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