Ranking Score Explained

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.

Cymen Crick's avatar

Cymen Crick

Rankers Owner

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

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%

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

-3.94% 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%

Balancing Adjustment

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.

Final Ranking Score

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.