Hi, 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.
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.
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.
71.84%
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 |
---|---|---|---|
Melissa S | 2/10 | 2198 days | 53% |
Inez Cavallaro | 6/10 | 2259 days | 100% |
John Farley | 10/10 | 2860 days | 83% |
Frank Fabian | 8/10 | 2911 days | 78% |
Les Hendy | 8/10 | 2937 days | 77% |
Lea Celerier | 8/10 | 2938 days | 77% |
Jane Scott | 9/10 | 2988 days | 75% |
Michelle Smit | 8/10 | 3050 days | 71% |
Jan Berendsen | 5/10 | 3146 days | 51% |
Chandra Macraigne | 6/10 | 3181 days | 56% |
Nanna Torp | 3/10 | 3183 days | 34% |
Karel | 7/10 | 3920 days | 22% |
Dick Kooij | 7/10 | 4341 days | 0% |
Huw Davies | 8/10 | 4609 days | 26% |
Goran Backlund | 7/10 | 4619 days | 25% |
Marc Schmiedily | 3/10 | 4620 days | 14% |
Martin Beuker | 8/10 | 4640 days | 26% |
Richard Harvey | 8/10 | 4643 days | 26% |
Mark Bogton | 5/10 | 4643 days | 20% |
Thomas | 5/10 | 4645 days | 20% |
Kimberley Mills | 8/10 | 4650 days | 26% |
Scott Simpson | 5/10 | 4651 days | 20% |
Luis Valenzuela | 5/10 | 4656 days | 20% |
Petra | 8/10 | 4658 days | 26% |
David Blundell | 7/10 | 4658 days | 25% |
Lucie Rutherfurd | 9/10 | 4661 days | 26% |
Peter W. | 3/10 | 4725 days | 14% |
Steve Neilson | 8/10 | 4732 days | 26% |
Erik Folkersen | 4/10 | 4739 days | 17% |
Mark de Boer | 8/10 | 4745 days | 26% |
Tina | 9/10 | 4755 days | 26% |
Jacquimd13 | 10/10 | 4878 days | 27% |
Natascha Rachel | 7/10 | 4945 days | 25% |
A Jones | 9/10 | 4972 days | 26% |
Walker | 5/10 | 4972 days | 20% |
Lindsey Clough | 2/10 | 4978 days | 11% |
Natalie Maguire | 5/10 | 4983 days | 20% |
Andreas Rath | 6/10 | 4985 days | 23% |
Peter & Angela Brown | 10/10 | 4990 days | 27% |
Chris Ashton | 7/10 | 4994 days | 25% |
Kees Stigter | 7/10 | 4996 days | 25% |
Diete Rokosch | 9/10 | 5001 days | 26% |
Brian | 10/10 | 5003 days | 27% |
Ronald Lippett | 8/10 | 5005 days | 26% |
Ines | 8/10 | 5015 days | 26% |
Julian Seizinger | 2/10 | 5015 days | 11% |
Ann Thompson | 9/10 | 5016 days | 26% |
Luise Jaeger | 10/10 | 5018 days | 27% |
Eva Stauderova | 6/10 | 5019 days | 23% |
Marianne Astorp | 8/10 | 5019 days | 26% |
Henrik Petersen | 7/10 | 5021 days | 25% |
Michael Eck | 8/10 | 5021 days | 26% |
Lili | 8/10 | 5021 days | 26% |
Florian | 7/10 | 5021 days | 25% |
willsworthy | 5/10 | 5120 days | 20% |
craigy | 5/10 | 5212 days | 20% |
BigSis | 7/10 | 5212 days | 25% |
Russ Turner | 2/10 | 5351 days | 11% |
Andy | 6/10 | 5355 days | 23% |
Michael Egli | 9/10 | 5356 days | 26% |
Alan & Lorna | 3/10 | 5358 days | 14% |
Venot | 7/10 | 5368 days | 25% |
Roger Trusedale | 5/10 | 5375 days | 20% |
David Rich | 6/10 | 5378 days | 23% |
Mathias Skov | 4/10 | 5379 days | 17% |
Nikki Wood | 6/10 | 5387 days | 23% |
Mike Kirchner | 2/10 | 5389 days | 11% |
Wolfgang G | 10/10 | 5399 days | 27% |
Bo Moenstead | 8/10 | 5402 days | 26% |
cees juffermans | 8/10 | 5406 days | 26% |
Camenzind | 7/10 | 5413 days | 25% |
Angela Stringer | 4/10 | 5424 days | 17% |
blokzyl | 8/10 | 5444 days | 26% |
aages | 9/10 | 5448 days | 26% |
Emma Coltman | 5/10 | 5457 days | 20% |
Helen Pet | 9/10 | 5463 days | 26% |
nancyburns | 7/10 | 5485 days | 25% |
Von | 5/10 | 5485 days | 20% |
rita | 7/10 | 5564 days | 25% |
Jess Thompson | 10/10 | 5577 days | 27% |
Boxa Smith | 10/10 | 5577 days | 27% |
LowerD | 9/10 | 5693 days | 26% |
Sofie | 8/10 | 5699 days | 26% |
Arjan Muis | 7/10 | 5701 days | 25% |
Marion | 10/10 | 5703 days | 27% |
Kim | 6/10 | 5703 days | 23% |
MichaelS1 | 3/10 | 5715 days | 14% |
ClodaghM | 8/10 | 5716 days | 26% |
Andrew Wilson | 9/10 | 5716 days | 26% |
FiensG | 8/10 | 5718 days | 26% |
Joel | 7/10 | 5719 days | 25% |
Robert | 4/10 | 5722 days | 17% |
Chris | 8/10 | 5723 days | 26% |
JuliaG1 | 7/10 | 5732 days | 25% |
DavidMurray | 7/10 | 5733 days | 25% |
AndrewF78 | 6/10 | 5735 days | 23% |
Sarah | 8/10 | 5735 days | 26% |
Carmel | 7/10 | 5739 days | 25% |
marcusr | 7/10 | 5740 days | 25% |
BethanD | 9/10 | 5746 days | 26% |
ClaudiaK | 1/10 | 5748 days | 10% |
Miguel | 3/10 | 5749 days | 14% |
Ko | 8/10 | 5763 days | 26% |
Nienhaus | 7/10 | 5766 days | 25% |
Kern | 3/10 | 5783 days | 14% |
Stephanie | 9/10 | 5799 days | 26% |
Miha | 10/10 | 5803 days | 27% |
Jacinta | 3/10 | 5829 days | 14% |
Lara | 7/10 | 5876 days | 25% |
Katie | 7/10 | 5894 days | 25% |
Daniela Bell | 10/10 | 5905 days | 27% |
Jenny | 7/10 | 5909 days | 25% |
maria d | 10/10 | 5941 days | 27% |
fgregory | 3/10 | 5961 days | 14% |
woodolly | 3/10 | 6042 days | 14% |
Christian | 6/10 | 6086 days | 23% |
Alexandra Vogeli | 8/10 | 6086 days | 26% |
Richard Steward | 9/10 | 6096 days | 26% |
boukje | 8/10 | 6099 days | 26% |
Stephanie | 10/10 | 6111 days | 27% |
Carla | 8/10 | 6111 days | 26% |
Melissa Steedman | 7/10 | 6138 days | 25% |
Vanessa Brennan | 5/10 | 6138 days | 20% |
Maria | 8/10 | 6142 days | 26% |
Gerber Liselotte | 7/10 | 6173 days | 25% |
Manuel | 5/10 | 6188 days | 20% |
Tom Clements | 6/10 | 6189 days | 23% |
Sally Walker | 9/10 | 6216 days | 26% |
Bridgy | 10/10 | 6389 days | 27% |
andrew julie | 8/10 | 6423 days | 26% |
Bas Marieke | 8/10 | 6440 days | 26% |
Richhouse | 8/10 | 6445 days | 26% |
Dennis | 7/10 | 6446 days | 25% |
Rietveld | 6/10 | 6457 days | 23% |
Susanne | 5/10 | 6462 days | 20% |
Lucy | 7/10 | 6462 days | 25% |
Ralph | 7/10 | 6464 days | 25% |
Nissa | 7/10 | 6464 days | 25% |
Ash Sturm | 6/10 | 6581 days | 23% |
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
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.
-3.94% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 47 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Hells Gate and Wai Ora Spa experience has been adjusted for 200 days. Adjustments are according to the following table.
Days | Adjustment |
---|---|
… | … |
197 | -3.88% |
198 | -3.90% |
199 | -3.92% |
200 | -3.94% |
201 | -3.96% |
202 | -3.98% |
203 | -4.00% |
… | … |
8.25% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
76%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.