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 Hells Gate and Wai Ora Spa.
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.
Hells Gate and Wai Ora Spa
Valid Reviews
139 Valid Reviews
The Hells Gate and Wai Ora Spa experience has a total of 145 reviews. There are 139 valid reviews that are included when calculating the ranking score and 6 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 139 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 14 |
|
10% |
| 9/10 | 15 |
|
11% |
| 8/10 | 32 |
|
23% |
| 7/10 | 30 |
|
22% |
| 6/10 | 13 |
|
9% |
| 5/10 | 15 |
|
11% |
| 4/10 | 4 |
|
3% |
| 3/10 | 10 |
|
7% |
| 2/10 | 5 |
|
4% |
| 1/10 | 1 |
|
1% |
68.42% Average
The raw data average (mean) for all the Hells Gate and Wai Ora Spa valid reviews is 68.42% and is based on 139 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
119 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 139 valid reviews, the experience has 119 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 119 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 10 |
|
8% |
| 9/10 | 13 |
|
11% |
| 8/10 | 30 |
|
25% |
| 7/10 | 28 |
|
24% |
| 6/10 | 11 |
|
9% |
| 5/10 | 12 |
|
10% |
| 4/10 | 3 |
|
3% |
| 3/10 | 7 |
|
6% |
| 2/10 | 4 |
|
3% |
| 1/10 | 1 |
|
1% |
68.99% Average
The raw data average (mean) for all the Hells Gate and Wai Ora Spa face-to-face reviews is 68.99% and is based on 119 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
56.69%
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 | Face-to-Face | Weight | Relative Weight |
|---|---|---|---|---|---|
| Melissa S | 2/10 | 320 days | 62.83 | 98% | |
| Inez Cavallaro | 6/10 | 381 days | 63.91 | 100% | |
| John Farley | 10/10 | 982 days |  |
7.02 | 11% |
| Frank Fabian | 8/10 | 1033 days | |
5.33 | 8% |
| Les Hendy | 8/10 | 1059 days | |
4.95 | 8% |
| Lea Celerier | 8/10 | 1060 days | |
4.93 | 8% |
| Jane Scott | 9/10 | 1111 days | 4.97 | 8% | |
| Michelle Smit | 8/10 | 1173 days | 4.62 | 7% | |
| Jan Berendsen | 5/10 | 1268 days | |
3.81 | 6% |
| Chandra Macraigne | 6/10 | 1303 days | |
3.85 | 6% |
| Nanna Torp | 3/10 | 1305 days | |
3.57 | 6% |
| Karel | 7/10 | 2042 days | |
3.07 | 5% |
| Dick Kooij | 7/10 | 2463 days | |
2.42 | 4% |
| Huw Davies | 8/10 | 2731 days | |
2.09 | 3% |
| Goran Backlund | 7/10 | 2741 days | |
1.99 | 3% |
| Marc Schmiedily | 3/10 | 2742 days | |
1.68 | 3% |
| Martin Beuker | 8/10 | 2762 days | |
2.04 | 3% |
| Richard Harvey | 8/10 | 2765 days | |
2.03 | 3% |
| Mark Bogton | 5/10 | 2765 days | |
1.73 | 3% |
| Thomas | 5/10 | 2767 days | |
1.73 | 3% |
| Kimberley Mills | 8/10 | 2772 days | |
2.02 | 3% |
| Scott Simpson | 5/10 | 2773 days | |
1.72 | 3% |
| Luis Valenzuela | 5/10 | 2778 days | |
1.72 | 3% |
| Petra | 8/10 | 2780 days | |
2.01 | 3% |
| David Blundell | 7/10 | 2780 days | |
1.92 | 3% |
| Lucie Rutherfurd | 9/10 | 2783 days | |
2.11 | 3% |
| Peter W. | 3/10 | 2847 days | 1.54 | 2% | |
| Steve Neilson | 8/10 | 2854 days | |
1.89 | 3% |
| Erik Folkersen | 4/10 | 2861 days | |
1.56 | 2% |
| Mark de Boer | 8/10 | 2867 days | |
1.87 | 3% |
| Tina | 9/10 | 2877 days | |
1.95 | 3% |
| Jacquimd13 | 10/10 | 3000 days | 1.74 | 3% | |
| Natascha Rachel | 7/10 | 3067 days | |
1.48 | 2% |
| A Jones | 9/10 | 3094 days | |
1.58 | 2% |
| Walker | 5/10 | 3094 days | |
1.28 | 2% |
| Lindsey Clough | 2/10 | 3100 days | |
1.18 | 2% |
| Natalie Maguire | 5/10 | 3105 days | |
1.26 | 2% |
| Andreas Rath | 6/10 | 3107 days | |
1.29 | 2% |
| Peter & Angela Brown | 10/10 | 3112 days | |
1.55 | 2% |
| Chris Ashton | 7/10 | 3116 days | |
1.4 | 2% |
| Kees Stigter | 7/10 | 3118 days | |
1.4 | 2% |
| Diete Rokosch | 9/10 | 3123 days | |
1.53 | 2% |
| Brian | 10/10 | 3125 days | |
1.52 | 2% |
| Ronald Lippett | 8/10 | 3127 days | |
1.44 | 2% |
| Ines | 8/10 | 3137 days | |
1.43 | 2% |
| Julian Seizinger | 2/10 | 3137 days | |
1.13 | 2% |
| Ann Thompson | 9/10 | 3138 days | |
1.5 | 2% |
| Luise Jaeger | 10/10 | 3140 days | |
1.5 | 2% |
| Eva Stauderova | 6/10 | 3141 days | |
1.24 | 2% |
| Marianne Astorp | 8/10 | 3141 days | |
1.42 | 2% |
| Henrik Petersen | 7/10 | 3143 days | |
1.36 | 2% |
| Michael Eck | 8/10 | 3143 days | |
1.42 | 2% |
| Lili | 8/10 | 3143 days | |
1.42 | 2% |
| Florian | 7/10 | 3143 days | |
1.36 | 2% |
| willsworthy | 5/10 | 3242 days | 1.07 | 2% | |
| craigy | 5/10 | 3334 days | 0.94 | 1% | |
| BigSis | 7/10 | 3334 days | 1.06 | 2% | |
| Russ Turner | 2/10 | 3473 days | |
0.7 | 1% |
| Andy | 6/10 | 3477 days | |
0.76 | 1% |
| Michael Egli | 9/10 | 3478 days | |
0.92 | 1% |
| Alan & Lorna | 3/10 | 3480 days | |
0.71 | 1% |
| Venot | 7/10 | 3490 days | |
0.82 | 1% |
| Roger Trusedale | 5/10 | 3497 days | |
0.72 | 1% |
| David Rich | 6/10 | 3500 days | |
0.73 | 1% |
| Mathias Skov | 4/10 | 3501 days | |
0.7 | 1% |
| Nikki Wood | 6/10 | 3509 days | |
0.72 | 1% |
| Mike Kirchner | 2/10 | 3511 days | |
0.65 | 1% |
| Wolfgang G | 10/10 | 3521 days | |
0.85 | 1% |
| Bo Moenstead | 8/10 | 3524 days | |
0.8 | 1% |
| cees juffermans | 8/10 | 3528 days | |
0.79 | 1% |
| Camenzind | 7/10 | 3535 days | |
0.75 | 1% |
| Angela Stringer | 4/10 | 3546 days | 0.63 | 1% | |
| blokzyl | 8/10 | 3566 days | |
0.73 | 1% |
| aages | 9/10 | 3570 days | |
0.76 | 1% |
| Emma Coltman | 5/10 | 3579 days | |
0.6 | 1% |
| Helen Pet | 9/10 | 3585 days | |
0.74 | 1% |
| nancyburns | 7/10 | 3607 days | 0.64 | 1% | |
| Von | 5/10 | 3607 days | 0.57 | 1% | |
| rita | 7/10 | 3686 days | |
0.51 | 1% |
| Jess Thompson | 10/10 | 3699 days | 0.54 | 1% | |
| Boxa Smith | 10/10 | 3699 days | 0.54 | 1% | |
| LowerD | 9/10 | 3815 days | |
0.34 | 1% |
| Sofie | 8/10 | 3821 days | |
0.32 | 0% |
| Arjan Muis | 7/10 | 3823 days | |
0.3 | 0% |
| Marion | 10/10 | 3825 days | |
0.33 | 1% |
| Kim | 6/10 | 3825 days | |
0.27 | 0% |
| MichaelS1 | 3/10 | 3837 days | |
0.23 | 0% |
| ClodaghM | 8/10 | 3838 days | |
0.29 | 0% |
| Andrew Wilson | 9/10 | 3838 days | |
0.3 | 0% |
| FiensG | 8/10 | 3840 days | |
0.28 | 0% |
| Joel | 7/10 | 3841 days | |
0.27 | 0% |
| Robert | 4/10 | 3845 days | |
0.23 | 0% |
| Chris | 8/10 | 3845 days | |
0.28 | 0% |
| JuliaG1 | 7/10 | 3854 days | |
0.25 | 0% |
| DavidMurray | 7/10 | 3855 days | |
0.25 | 0% |
| AndrewF78 | 6/10 | 3857 days | |
0.22 | 0% |
| Sarah | 8/10 | 3858 days | |
0.26 | 0% |
| Carmel | 7/10 | 3862 days | |
0.24 | 0% |
| marcusr | 7/10 | 3863 days | |
0.24 | 0% |
| BethanD | 9/10 | 3868 days | |
0.25 | 0% |
| ClaudiaK | 1/10 | 3870 days | |
0.18 | 0% |
| Miguel | 3/10 | 3872 days | |
0.19 | 0% |
| Ko | 8/10 | 3886 days | |
0.21 | 0% |
| Nienhaus | 7/10 | 3888 days | |
0.2 | 0% |
| Kern | 3/10 | 3906 days | |
0.14 | 0% |
| Stephanie | 9/10 | 3921 days | |
0.16 | 0% |
| Miha | 10/10 | 3926 days | |
0.15 | 0% |
| Jacinta | 3/10 | 3952 days | |
0.08 | 0% |
| Lara | 7/10 | 3999 days | |
0.02 | 0% |
| Katie | 7/10 | 4017 days | |
0.0 | 0% |
| Daniela Bell | 10/10 | 4028 days | |
0.0 | 0% |
| Jenny | 7/10 | 4032 days | |
0.0 | 0% |
| maria d | 10/10 | 4064 days | 0.0 | 0% | |
| fgregory | 3/10 | 4084 days | 0.0 | 0% | |
| woodolly | 3/10 | 4165 days | 0.0 | 0% | |
| Christian | 6/10 | 4208 days | |
0.0 | 0% |
| Alexandra Vogeli | 8/10 | 4208 days | |
0.0 | 0% |
| Richard Steward | 9/10 | 4218 days | |
0.0 | 0% |
| boukje | 8/10 | 4222 days | 0.0 | 0% | |
| Stephanie | 10/10 | 4233 days | |
0.0 | 0% |
| Carla | 8/10 | 4233 days | |
0.0 | 0% |
| Melissa Steedman | 7/10 | 4260 days | |
0.0 | 0% |
| Vanessa Brennan | 5/10 | 4260 days | |
0.0 | 0% |
| Maria | 8/10 | 4264 days | |
0.0 | 0% |
| Gerber Liselotte | 7/10 | 4295 days | |
0.0 | 0% |
| Manuel | 5/10 | 4310 days | |
0.0 | 0% |
| Tom Clements | 6/10 | 4311 days | |
0.0 | 0% |
| Sally Walker | 9/10 | 4338 days | 0.0 | 0% | |
| Bridgy | 10/10 | 4511 days | |
0.0 | 0% |
| andrew julie | 8/10 | 4545 days | |
0.0 | 0% |
| Bas Marieke | 8/10 | 4562 days | |
0.0 | 0% |
| Richhouse | 8/10 | 4567 days | |
0.0 | 0% |
| Dennis | 7/10 | 4568 days | |
0.0 | 0% |
| Rietveld | 6/10 | 4579 days | |
0.0 | 0% |
| Susanne | 5/10 | 4584 days | |
0.0 | 0% |
| Lucy | 7/10 | 4584 days | |
0.0 | 0% |
| Ralph | 7/10 | 4586 days | |
0.0 | 0% |
| Nissa | 7/10 | 4586 days | |
0.0 | 0% |
| Ash Sturm | 6/10 | 4703 days | 0.0 | 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 Hells Gate and Wai Ora Spa experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.98% Adjustment
There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Hells Gate and Wai Ora Spa 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 199 days.
The Hells Gate and Wai Ora Spa experience has been adjusted for 199 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 196 | -3.92% |
| 197 | -3.94% |
| 198 | -3.96% |
| 199 | -3.98% |
| 200 | -4.00% |
| 201 | -4.02% |
| 202 | -4.04% |
| … | … |
Final Ranking Score
53%
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.