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 ZORB Rotorua.

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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

ZORB Rotorua

Valid Reviews

132 Valid Reviews

The ZORB Rotorua experience has a total of 133 reviews. There are 132 valid reviews that are included when calculating the ranking score and 1 invalid review 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 132 valid reviews:

Rating Count Percentage
10/10 27
20%
9/10 17
13%
8/10 38
29%
7/10 26
20%
6/10 13
10%
5/10 5
4%
4/10 4
3%
3/10 2
2%
2/10 0
0%
1/10 0
0%

78.33% Average

The raw data average (mean) for all the ZORB Rotorua valid reviews is 78.33% and is based on 132 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

120 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 132 valid reviews, the experience has 120 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 120 face-to-face reviews:

Rating Count Percentage
10/10 24
20%
9/10 16
13%
8/10 37
31%
7/10 21
18%
6/10 12
10%
5/10 4
3%
4/10 4
3%
3/10 2
2%
2/10 0
0%
1/10 0
0%

78.42% Average

The raw data average (mean) for all the ZORB Rotorua face-to-face reviews is 78.42% and is based on 120 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

77.86%

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
Izzy 7/10 551 days 100%
Auba Mateos 10/10 1654 days 8%
May 10/10 1720 days 8%
Nathan Raymond 4/10 1982 days 5%
Raylene Luison 8/10 1990 days 6%
Tamara 10/10 2015 days 7%
Brennan Jungling 8/10 2021 days 6%
Anita Wallace 9/10 2021 days 7%
Linda and Gunther 10/10 2057 days 7%
Janek Belcher 8/10 2691 days 4%
Robert Erni 7/10 2692 days 4%
Vanessa 8/10 2711 days 4%
Olivia 8/10 2726 days 4%
Callum 8/10 2726 days 4%
David Lee 8/10 3091 days 2%
Thibault Bonenfant 10/10 3175 days 2%
Lisa Blake 8/10 3185 days 2%
Elisabeth 10/10 3466 days 1%
Asha 7/10 3504 days 0%
Mark & Beth Kaufman 8/10 3539 days 0%
Harry Simpson 10/10 3542 days 0%
kirribilliangel 7/10 3626 days 0%
Dave van Bergen 8/10 3774 days 2%
Jennifer Holloway 9/10 3784 days 2%
Julia 10/10 3793 days 2%
Isabell 7/10 3798 days 2%
Tim 6/10 3800 days 2%
WeddingMaven 9/10 3810 days 2%
Natthien Le Gall 7/10 3811 days 2%
Paap 8/10 3815 days 2%
Wouter Jansen 8/10 3815 days 2%
Kat Fleming 9/10 3824 days 2%
Invictus 8/10 3991 days 2%
heather Cardinal 3/10 4130 days 2%
Mathias Skov 6/10 4189 days 2%
jameswhite 8/10 4257 days 2%
asiacritics 6/10 4265 days 2%
nancyburns 7/10 4265 days 2%
Lesley Nixon 4/10 4275 days 2%
Ash Sturm 10/10 4295 days 2%
clairet 7/10 4374 days 2%
BryonyS 10/10 4497 days 2%
Sofie 8/10 4509 days 2%
desl 10/10 4509 days 2%
Steve Harper 7/10 4516 days 2%
Yvanna 8/10 4529 days 2%
LucyPoland 9/10 4530 days 2%
Amelie 8/10 4530 days 2%
OllyD 7/10 4538 days 2%
JessicaS1 9/10 4541 days 2%
TomC1 8/10 4542 days 2%
TrevorK 8/10 4542 days 2%
AndyK 10/10 4542 days 2%
SarahK 10/10 4542 days 2%
FrancesG 8/10 4542 days 2%
RachelR 10/10 4542 days 2%
SofiaBrazil 8/10 4542 days 2%
EmmaL 10/10 4542 days 2%
Sarah 9/10 4546 days 2%
Ed 8/10 4546 days 2%
Carmel 10/10 4550 days 2%
Amanda Williams 10/10 4550 days 2%
Cilla 10/10 4551 days 2%
MayGermany 6/10 4551 days 2%
Craig 10/10 4567 days 2%
Florian 10/10 4567 days 2%
SonjaS 8/10 4568 days 2%
Mimi 10/10 4574 days 2%
Jasmine 10/10 4575 days 2%
Rose 7/10 4575 days 2%
Liz 7/10 4582 days 2%
Bonnie Turner 5/10 4599 days 2%
Stephanie 9/10 4609 days 2%
Sonja 6/10 4614 days 2%
Helen 7/10 4622 days 2%
Liekens 7/10 4630 days 2%
Evelyn 10/10 4644 days 2%
Michelle 7/10 4684 days 2%
Chris 10/10 4685 days 2%
Dave 8/10 4700 days 2%
Anna 10/10 4707 days 2%
Ele 10/10 4734 days 2%
Brent Scanlan 8/10 4851 days 2%
Bernie 9/10 4895 days 2%
Emily Houston 8/10 4906 days 2%
Gina 8/10 4918 days 2%
Julie 7/10 4918 days 2%
Katharina 9/10 4921 days 2%
Chris 4/10 4934 days 2%
Andre Obineche 8/10 4949 days 2%
Clive 7/10 4949 days 2%
Lindsey Woosnam 9/10 4952 days 2%
Anu 5/10 4955 days 2%
Lanni 7/10 4956 days 2%
Andrew 8/10 4956 days 2%
Andrew Porter 6/10 4957 days 2%
Pete 7/10 4998 days 2%
Orla 6/10 4999 days 2%
Richard Kindgren 7/10 5001 days 2%
Miriam&Eva 6/10 5199 days 2%
HalRoberts 7/10 5221 days 2%
Will 8/10 5225 days 2%
Helen 9/10 5227 days 2%
Heather 10/10 5227 days 2%
Matt 8/10 5227 days 2%
Richard 7/10 5227 days 2%
ShoshanaAbrams 9/10 5230 days 2%
Elaine 8/10 5230 days 2%
Gwen 4/10 5233 days 2%
Matt 9/10 5237 days 2%
Gillian 6/10 5238 days 2%
Lorraine 6/10 5245 days 2%
Jack 5/10 5245 days 2%
Jen 6/10 5245 days 2%
TrineLyst 8/10 5246 days 2%
Sean 5/10 5249 days 2%
Marcus 7/10 5249 days 2%
Katie 7/10 5249 days 2%
Dan 8/10 5250 days 2%
Sarah 7/10 5250 days 2%
Emma Gareth 8/10 5261 days 2%
MariaNorman 8/10 5265 days 2%
MarcHarris 8/10 5265 days 2%
Tom 8/10 5274 days 2%
Lucy 9/10 5274 days 2%
Nissa 9/10 5274 days 2%
Suzy 7/10 5279 days 2%
Nina 6/10 5281 days 2%
Inga 5/10 5281 days 2%
FredAndersson 6/10 5285 days 2%
Cat 9/10 5287 days 2%
SallySpencer 3/10 5300 days 2%

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 ZORB Rotorua experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-2.15% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 121 days. However the ZORB Rotorua 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 ZORB Rotorua experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -2.12%
198 -2.13%
199 -2.14%
200 -2.15%
201 -2.16%
202 -2.17%
203 -2.18%

Final Ranking Score

76%

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.