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
54.64%
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 | 473 days | 48.41 | 100% | |
| Inez Cavallaro | 6/10 | 534 days | 45.5 | 94% | |
| John Farley | 10/10 | 1135 days |  |
4.92 | 10% |
| Frank Fabian | 8/10 | 1186 days | |
4.58 | 9% |
| Les Hendy | 8/10 | 1212 days | |
4.53 | 9% |
| Lea Celerier | 8/10 | 1213 days | |
4.53 | 9% |
| Jane Scott | 9/10 | 1264 days | 4.67 | 10% | |
| Michelle Smit | 8/10 | 1326 days | 4.32 | 9% | |
| Jan Berendsen | 5/10 | 1421 days | |
3.53 | 7% |
| Chandra Macraigne | 6/10 | 1456 days | |
3.56 | 7% |
| Nanna Torp | 3/10 | 1458 days | |
3.3 | 7% |
| Karel | 7/10 | 2195 days | |
2.59 | 5% |
| Dick Kooij | 7/10 | 2616 days | |
1.84 | 4% |
| Huw Davies | 8/10 | 2884 days | |
1.42 | 3% |
| Goran Backlund | 7/10 | 2894 days | |
1.35 | 3% |
| Marc Schmiedily | 3/10 | 2895 days | |
1.14 | 2% |
| Martin Beuker | 8/10 | 2915 days | |
1.37 | 3% |
| Richard Harvey | 8/10 | 2918 days | |
1.36 | 3% |
| Mark Bogton | 5/10 | 2918 days | |
1.16 | 2% |
| Thomas | 5/10 | 2920 days | |
1.16 | 2% |
| Kimberley Mills | 8/10 | 2925 days | |
1.35 | 3% |
| Scott Simpson | 5/10 | 2926 days | |
1.15 | 2% |
| Luis Valenzuela | 5/10 | 2931 days | |
1.14 | 2% |
| Petra | 8/10 | 2933 days | |
1.33 | 3% |
| David Blundell | 7/10 | 2933 days | |
1.28 | 3% |
| Lucie Rutherfurd | 9/10 | 2936 days | |
1.4 | 3% |
| Peter W. | 3/10 | 3000 days | 0.98 | 2% | |
| Steve Neilson | 8/10 | 3007 days | |
1.2 | 2% |
| Erik Folkersen | 4/10 | 3014 days | |
0.98 | 2% |
| Mark de Boer | 8/10 | 3020 days | |
1.17 | 2% |
| Tina | 9/10 | 3030 days | |
1.21 | 3% |
| Jacquimd13 | 10/10 | 3153 days | 0.97 | 2% | |
| Natascha Rachel | 7/10 | 3220 days | |
0.77 | 2% |
| A Jones | 9/10 | 3247 days | |
0.79 | 2% |
| Walker | 5/10 | 3247 days | |
0.64 | 1% |
| Lindsey Clough | 2/10 | 3253 days | |
0.58 | 1% |
| Natalie Maguire | 5/10 | 3258 days | |
0.62 | 1% |
| Andreas Rath | 6/10 | 3260 days | |
0.63 | 1% |
| Peter & Angela Brown | 10/10 | 3265 days | |
0.75 | 2% |
| Chris Ashton | 7/10 | 3269 days | |
0.68 | 1% |
| Kees Stigter | 7/10 | 3271 days | |
0.67 | 1% |
| Diete Rokosch | 9/10 | 3276 days | |
0.73 | 2% |
| Brian | 10/10 | 3278 days | |
0.73 | 2% |
| Ronald Lippett | 8/10 | 3280 days | |
0.69 | 1% |
| Ines | 8/10 | 3290 days | |
0.67 | 1% |
| Julian Seizinger | 2/10 | 3290 days | |
0.53 | 1% |
| Ann Thompson | 9/10 | 3291 days | |
0.7 | 1% |
| Luise Jaeger | 10/10 | 3293 days | |
0.7 | 1% |
| Eva Stauderova | 6/10 | 3294 days | |
0.58 | 1% |
| Marianne Astorp | 8/10 | 3294 days | |
0.66 | 1% |
| Henrik Petersen | 7/10 | 3296 days | |
0.63 | 1% |
| Michael Eck | 8/10 | 3296 days | |
0.66 | 1% |
| Lili | 8/10 | 3296 days | |
0.66 | 1% |
| Florian | 7/10 | 3296 days | |
0.63 | 1% |
| willsworthy | 5/10 | 3395 days | 0.4 | 1% | |
| craigy | 5/10 | 3487 days | 0.26 | 1% | |
| BigSis | 7/10 | 3487 days | 0.29 | 1% | |
| Russ Turner | 2/10 | 3626 days | |
0.04 | 0% |
| Andy | 6/10 | 3630 days | |
0.03 | 0% |
| Michael Egli | 9/10 | 3631 days | |
0.04 | 0% |
| Alan & Lorna | 3/10 | 3633 days | |
0.03 | 0% |
| Venot | 7/10 | 3643 days | |
0.01 | 0% |
| Roger Trusedale | 5/10 | 3650 days | |
0.0 | 0% |
| David Rich | 6/10 | 3653 days | |
0.0 | 0% |
| Mathias Skov | 4/10 | 3654 days | |
0.0 | 0% |
| Nikki Wood | 6/10 | 3662 days | |
0.0 | 0% |
| Mike Kirchner | 2/10 | 3664 days | |
0.0 | 0% |
| Wolfgang G | 10/10 | 3674 days | |
0.0 | 0% |
| Bo Moenstead | 8/10 | 3677 days | |
0.0 | 0% |
| cees juffermans | 8/10 | 3681 days | |
0.0 | 0% |
| Camenzind | 7/10 | 3688 days | |
0.0 | 0% |
| Angela Stringer | 4/10 | 3699 days | 0.0 | 0% | |
| blokzyl | 8/10 | 3719 days | |
0.0 | 0% |
| aages | 9/10 | 3723 days | |
0.0 | 0% |
| Emma Coltman | 5/10 | 3732 days | |
0.0 | 0% |
| Helen Pet | 9/10 | 3738 days | |
0.0 | 0% |
| nancyburns | 7/10 | 3760 days | 0.0 | 0% | |
| Von | 5/10 | 3760 days | 0.0 | 0% | |
| rita | 7/10 | 3839 days | |
0.0 | 0% |
| Jess Thompson | 10/10 | 3852 days | 0.0 | 0% | |
| Boxa Smith | 10/10 | 3852 days | 0.0 | 0% | |
| LowerD | 9/10 | 3968 days | |
0.0 | 0% |
| Sofie | 8/10 | 3974 days | |
0.0 | 0% |
| Arjan Muis | 7/10 | 3976 days | |
0.0 | 0% |
| Marion | 10/10 | 3978 days | |
0.0 | 0% |
| Kim | 6/10 | 3978 days | |
0.0 | 0% |
| MichaelS1 | 3/10 | 3990 days | |
0.0 | 0% |
| ClodaghM | 8/10 | 3991 days | |
0.0 | 0% |
| Andrew Wilson | 9/10 | 3991 days | |
0.0 | 0% |
| FiensG | 8/10 | 3993 days | |
0.0 | 0% |
| Joel | 7/10 | 3994 days | |
0.0 | 0% |
| Robert | 4/10 | 3998 days | |
0.0 | 0% |
| Chris | 8/10 | 3998 days | |
0.0 | 0% |
| JuliaG1 | 7/10 | 4007 days | |
0.0 | 0% |
| DavidMurray | 7/10 | 4008 days | |
0.0 | 0% |
| AndrewF78 | 6/10 | 4010 days | |
0.0 | 0% |
| Sarah | 8/10 | 4011 days | |
0.0 | 0% |
| Carmel | 7/10 | 4014 days | |
0.0 | 0% |
| marcusr | 7/10 | 4016 days | |
0.0 | 0% |
| BethanD | 9/10 | 4021 days | |
0.0 | 0% |
| ClaudiaK | 1/10 | 4023 days | |
0.0 | 0% |
| Miguel | 3/10 | 4025 days | |
0.0 | 0% |
| Ko | 8/10 | 4039 days | |
0.0 | 0% |
| Nienhaus | 7/10 | 4041 days | |
0.0 | 0% |
| Kern | 3/10 | 4059 days | |
0.0 | 0% |
| Stephanie | 9/10 | 4074 days | |
0.0 | 0% |
| Miha | 10/10 | 4079 days | |
0.0 | 0% |
| Jacinta | 3/10 | 4105 days | |
0.0 | 0% |
| Lara | 7/10 | 4152 days | |
0.0 | 0% |
| Katie | 7/10 | 4170 days | |
0.0 | 0% |
| Daniela Bell | 10/10 | 4181 days | |
0.0 | 0% |
| Jenny | 7/10 | 4185 days | |
0.0 | 0% |
| maria d | 10/10 | 4217 days | 0.0 | 0% | |
| fgregory | 3/10 | 4237 days | 0.0 | 0% | |
| woodolly | 3/10 | 4318 days | 0.0 | 0% | |
| Christian | 6/10 | 4361 days | |
0.0 | 0% |
| Alexandra Vogeli | 8/10 | 4361 days | |
0.0 | 0% |
| Richard Steward | 9/10 | 4371 days | |
0.0 | 0% |
| boukje | 8/10 | 4374 days | 0.0 | 0% | |
| Stephanie | 10/10 | 4386 days | |
0.0 | 0% |
| Carla | 8/10 | 4386 days | |
0.0 | 0% |
| Melissa Steedman | 7/10 | 4413 days | |
0.0 | 0% |
| Vanessa Brennan | 5/10 | 4413 days | |
0.0 | 0% |
| Maria | 8/10 | 4417 days | |
0.0 | 0% |
| Gerber Liselotte | 7/10 | 4448 days | |
0.0 | 0% |
| Manuel | 5/10 | 4463 days | |
0.0 | 0% |
| Tom Clements | 6/10 | 4464 days | |
0.0 | 0% |
| Sally Walker | 9/10 | 4491 days | 0.0 | 0% | |
| Bridgy | 10/10 | 4664 days | |
0.0 | 0% |
| andrew julie | 8/10 | 4698 days | |
0.0 | 0% |
| Bas Marieke | 8/10 | 4715 days | |
0.0 | 0% |
| Richhouse | 8/10 | 4720 days | |
0.0 | 0% |
| Dennis | 7/10 | 4721 days | |
0.0 | 0% |
| Rietveld | 6/10 | 4732 days | |
0.0 | 0% |
| Susanne | 5/10 | 4737 days | |
0.0 | 0% |
| Lucy | 7/10 | 4737 days | |
0.0 | 0% |
| Ralph | 7/10 | 4739 days | |
0.0 | 0% |
| Nissa | 7/10 | 4739 days | |
0.0 | 0% |
| Ash Sturm | 6/10 | 4856 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
51%
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.