Ranking Score Explained
Hi there, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for PureTrails New Zealand.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
PureTrails New Zealand
Valid Reviews
54 Valid Reviews
The PureTrails New Zealand experience has a total of 56 reviews. There are 54 valid reviews that are included when calculating the ranking score and 2 invalid reviews that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 54 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 38 |
|
70% |
| 9/10 | 15 |
|
28% |
| 8/10 | 0 |
|
0% |
| 7/10 | 0 |
|
0% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
2% |
95.56% Average
The raw data average (mean) for all the PureTrails New Zealand valid reviews is 95.56% and is based on 54 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Weighted Average
82.75%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Gordon | 10/10 | 414 days | 100% |
| Lyndsey Saunders | 1/10 | 414 days | 73% |
| Alias Gertrude | 10/10 | 749 days | 33% |
| Jan | 10/10 | 749 days | 33% |
| helen mclean | 10/10 | 780 days | 28% |
| John Hayman | 9/10 | 900 days | 15% |
| wendy mesley | 9/10 | 1114 days | 6% |
| Michelle | 10/10 | 1114 days | 6% |
| Derwin Arnstead | 10/10 | 1203 days | 6% |
| Anne Duncan | 10/10 | 1568 days | 5% |
| Nick Smith | 9/10 | 1874 days | 4% |
| Fiona | 9/10 | 1874 days | 4% |
| Dianne Kidd | 10/10 | 1903 days | 4% |
| David Darmanin | 10/10 | 1904 days | 4% |
| Sam | 10/10 | 1934 days | 4% |
| Julie B | 10/10 | 1965 days | 4% |
| Janelle Varlow | 10/10 | 1995 days | 4% |
| Helen Bryan | 10/10 | 2209 days | 3% |
| Geoff Bartlett | 10/10 | 2240 days | 3% |
| Diana Houtman | 10/10 | 2240 days | 3% |
| Mary Karl | 10/10 | 2240 days | 3% |
| fgiacoma | 9/10 | 2268 days | 3% |
| ross murray | 10/10 | 2300 days | 3% |
| Jane Geldenhuys | 10/10 | 2330 days | 3% |
| Ian Anderson | 10/10 | 2330 days | 3% |
| Ros Noone | 9/10 | 2360 days | 3% |
| Peter Hales | 9/10 | 2575 days | 2% |
| David Vinsen | 10/10 | 2606 days | 2% |
| Caroline Barber | 9/10 | 2634 days | 2% |
| Denise McMahon | 9/10 | 2634 days | 2% |
| cmh | 10/10 | 2726 days | 2% |
| John Marchment | 10/10 | 2757 days | 2% |
| Ian and Chris Homann | 10/10 | 2971 days | 1% |
| Nancy Stone | 10/10 | 2999 days | 1% |
| Graham Bamford | 10/10 | 3030 days | 1% |
| pauart | 10/10 | 3091 days | 1% |
| jennic | 9/10 | 3122 days | 1% |
| smithereen | 10/10 | 3305 days | 0% |
| Maryel | 10/10 | 3305 days | 0% |
| Woods | 10/10 | 3336 days | 0% |
| JennyT | 10/10 | 3336 days | 0% |
| maureenmf | 10/10 | 3336 days | 0% |
| frankie | 10/10 | 3336 days | 0% |
| FrancesJ | 9/10 | 3336 days | 0% |
| AlanWillow | 10/10 | 3336 days | 0% |
| cribble | 9/10 | 3336 days | 0% |
| shoanthomson | 10/10 | 3336 days | 0% |
| Montpellier | 9/10 | 3365 days | 0% |
| LIZ_MONTGOMERY | 10/10 | 3396 days | 0% |
| upmack | 10/10 | 3396 days | 0% |
| Michael73 | 10/10 | 3427 days | 0% |
| LizH | 10/10 | 3457 days | 0% |
| lyndab | 9/10 | 3457 days | 0% |
| frendoj | 9/10 | 3457 days | 0% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The PureTrails New Zealand experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.43% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 68 days. However the PureTrails New Zealand experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The PureTrails New Zealand experience has been adjusted for 144 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 141 | -2.38% |
| 142 | -2.40% |
| 143 | -2.42% |
| 144 | -2.43% |
| 145 | -2.45% |
| 146 | -2.47% |
| 147 | -2.48% |
| … | … |
Final Ranking Score
80%
The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.