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.
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
76.19%
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 |
|---|---|---|---|---|---|
| Izzy | 7/10 | 60 days | 90.48 | 100% | |
| Auba Mateos | 10/10 | 1163 days |  |
4.87 | 5% |
| May | 10/10 | 1229 days | |
4.74 | 5% |
| Nathan Raymond | 4/10 | 1491 days | |
3.34 | 4% |
| Raylene Luison | 8/10 | 1499 days | |
4.0 | 4% |
| Tamara | 10/10 | 1524 days | |
4.16 | 5% |
| Brennan Jungling | 8/10 | 1530 days | |
3.94 | 4% |
| Anita Wallace | 9/10 | 1530 days | |
4.15 | 5% |
| Linda and Gunther | 10/10 | 1566 days | |
4.08 | 5% |
| Janek Belcher | 8/10 | 2200 days | |
2.7 | 3% |
| Robert Erni | 7/10 | 2201 days | |
2.58 | 3% |
| Vanessa | 8/10 | 2220 days | |
2.66 | 3% |
| Olivia | 8/10 | 2235 days | |
2.63 | 3% |
| Callum | 8/10 | 2235 days | |
2.63 | 3% |
| David Lee | 8/10 | 2600 days | |
1.95 | 2% |
| Thibault Bonenfant | 10/10 | 2684 days | |
1.89 | 2% |
| Lisa Blake | 8/10 | 2694 days | |
1.78 | 2% |
| Elisabeth | 10/10 | 2975 days | |
1.32 | 1% |
| Asha | 7/10 | 3013 days | 1.13 | 1% | |
| Mark & Beth Kaufman | 8/10 | 3048 days | |
1.12 | 1% |
| Harry Simpson | 10/10 | 3051 days | |
1.17 | 1% |
| kirribilliangel | 7/10 | 3135 days | 0.92 | 1% | |
| Dave van Bergen | 8/10 | 3283 days | |
0.68 | 1% |
| Jennifer Holloway | 9/10 | 3293 days | |
0.7 | 1% |
| Julia | 10/10 | 3302 days | |
0.68 | 1% |
| Isabell | 7/10 | 3307 days | |
0.61 | 1% |
| Tim | 6/10 | 3309 days | |
0.55 | 1% |
| WeddingMaven | 9/10 | 3319 days | 0.65 | 1% | |
| Natthien Le Gall | 7/10 | 3320 days | |
0.59 | 1% |
| Paap | 8/10 | 3324 days | |
0.61 | 1% |
| Wouter Jansen | 8/10 | 3324 days | |
0.61 | 1% |
| Kat Fleming | 9/10 | 3333 days | |
0.62 | 1% |
| Invictus | 8/10 | 3500 days | 0.28 | 0% | |
| heather Cardinal | 3/10 | 3639 days | |
0.02 | 0% |
| Mathias Skov | 6/10 | 3698 days | |
0.0 | 0% |
| jameswhite | 8/10 | 3766 days | |
0.0 | 0% |
| asiacritics | 6/10 | 3774 days | 0.0 | 0% | |
| nancyburns | 7/10 | 3774 days | 0.0 | 0% | |
| Lesley Nixon | 4/10 | 3784 days | |
0.0 | 0% |
| Ash Sturm | 10/10 | 3804 days | 0.0 | 0% | |
| clairet | 7/10 | 3883 days | |
0.0 | 0% |
| BryonyS | 10/10 | 4006 days | |
0.0 | 0% |
| Sofie | 8/10 | 4018 days | |
0.0 | 0% |
| desl | 10/10 | 4018 days | |
0.0 | 0% |
| Steve Harper | 7/10 | 4025 days | |
0.0 | 0% |
| Yvanna | 8/10 | 4037 days | |
0.0 | 0% |
| LucyPoland | 9/10 | 4039 days | |
0.0 | 0% |
| Amelie | 8/10 | 4039 days | |
0.0 | 0% |
| OllyD | 7/10 | 4047 days | |
0.0 | 0% |
| JessicaS1 | 9/10 | 4050 days | |
0.0 | 0% |
| TomC1 | 8/10 | 4051 days | |
0.0 | 0% |
| TrevorK | 8/10 | 4051 days | |
0.0 | 0% |
| AndyK | 10/10 | 4051 days | |
0.0 | 0% |
| SarahK | 10/10 | 4051 days | |
0.0 | 0% |
| FrancesG | 8/10 | 4051 days | |
0.0 | 0% |
| RachelR | 10/10 | 4051 days | |
0.0 | 0% |
| SofiaBrazil | 8/10 | 4051 days | |
0.0 | 0% |
| EmmaL | 10/10 | 4051 days | |
0.0 | 0% |
| Sarah | 9/10 | 4055 days | |
0.0 | 0% |
| Ed | 8/10 | 4055 days | |
0.0 | 0% |
| Carmel | 10/10 | 4058 days | |
0.0 | 0% |
| Amanda Williams | 10/10 | 4059 days | 0.0 | 0% | |
| Cilla | 10/10 | 4060 days | |
0.0 | 0% |
| MayGermany | 6/10 | 4060 days | |
0.0 | 0% |
| Craig | 10/10 | 4075 days | |
0.0 | 0% |
| Florian | 10/10 | 4075 days | |
0.0 | 0% |
| SonjaS | 8/10 | 4077 days | |
0.0 | 0% |
| Mimi | 10/10 | 4083 days | |
0.0 | 0% |
| Jasmine | 10/10 | 4084 days | |
0.0 | 0% |
| Rose | 7/10 | 4084 days | |
0.0 | 0% |
| Liz | 7/10 | 4090 days | |
0.0 | 0% |
| Bonnie Turner | 5/10 | 4108 days | 0.0 | 0% | |
| Stephanie | 9/10 | 4118 days | |
0.0 | 0% |
| Sonja | 6/10 | 4123 days | |
0.0 | 0% |
| Helen | 7/10 | 4131 days | |
0.0 | 0% |
| Liekens | 7/10 | 4139 days | |
0.0 | 0% |
| Evelyn | 10/10 | 4153 days | |
0.0 | 0% |
| Michelle | 7/10 | 4192 days | 0.0 | 0% | |
| Chris | 10/10 | 4193 days | |
0.0 | 0% |
| Dave | 8/10 | 4208 days | |
0.0 | 0% |
| Anna | 10/10 | 4216 days | |
0.0 | 0% |
| Ele | 10/10 | 4243 days | 0.0 | 0% | |
| Brent Scanlan | 8/10 | 4360 days | |
0.0 | 0% |
| Bernie | 9/10 | 4404 days | |
0.0 | 0% |
| Emily Houston | 8/10 | 4415 days | |
0.0 | 0% |
| Gina | 8/10 | 4427 days | |
0.0 | 0% |
| Julie | 7/10 | 4427 days | |
0.0 | 0% |
| Katharina | 9/10 | 4430 days | |
0.0 | 0% |
| Chris | 4/10 | 4443 days | |
0.0 | 0% |
| Andre Obineche | 8/10 | 4458 days | |
0.0 | 0% |
| Clive | 7/10 | 4458 days | |
0.0 | 0% |
| Lindsey Woosnam | 9/10 | 4461 days | |
0.0 | 0% |
| Anu | 5/10 | 4464 days | |
0.0 | 0% |
| Lanni | 7/10 | 4465 days | |
0.0 | 0% |
| Andrew | 8/10 | 4465 days | |
0.0 | 0% |
| Andrew Porter | 6/10 | 4466 days | |
0.0 | 0% |
| Pete | 7/10 | 4507 days | |
0.0 | 0% |
| Orla | 6/10 | 4508 days | |
0.0 | 0% |
| Richard Kindgren | 7/10 | 4510 days | |
0.0 | 0% |
| Miriam&Eva | 6/10 | 4708 days | |
0.0 | 0% |
| HalRoberts | 7/10 | 4730 days | |
0.0 | 0% |
| Will | 8/10 | 4734 days | |
0.0 | 0% |
| Helen | 9/10 | 4736 days | |
0.0 | 0% |
| Heather | 10/10 | 4736 days | |
0.0 | 0% |
| Matt | 8/10 | 4736 days | |
0.0 | 0% |
| Richard | 7/10 | 4736 days | |
0.0 | 0% |
| ShoshanaAbrams | 9/10 | 4739 days | |
0.0 | 0% |
| Elaine | 8/10 | 4739 days | |
0.0 | 0% |
| Gwen | 4/10 | 4742 days | |
0.0 | 0% |
| Matt | 9/10 | 4746 days | |
0.0 | 0% |
| Gillian | 6/10 | 4747 days | |
0.0 | 0% |
| Lorraine | 6/10 | 4754 days | |
0.0 | 0% |
| Jack | 5/10 | 4754 days | |
0.0 | 0% |
| Jen | 6/10 | 4754 days | |
0.0 | 0% |
| TrineLyst | 8/10 | 4755 days | |
0.0 | 0% |
| Sean | 5/10 | 4758 days | |
0.0 | 0% |
| Marcus | 7/10 | 4758 days | |
0.0 | 0% |
| Katie | 7/10 | 4758 days | |
0.0 | 0% |
| Dan | 8/10 | 4759 days | |
0.0 | 0% |
| Sarah | 7/10 | 4759 days | |
0.0 | 0% |
| Emma Gareth | 8/10 | 4770 days | |
0.0 | 0% |
| MariaNorman | 8/10 | 4774 days | |
0.0 | 0% |
| MarcHarris | 8/10 | 4774 days | |
0.0 | 0% |
| Tom | 8/10 | 4783 days | |
0.0 | 0% |
| Lucy | 9/10 | 4783 days | |
0.0 | 0% |
| Nissa | 9/10 | 4783 days | |
0.0 | 0% |
| Suzy | 7/10 | 4788 days | |
0.0 | 0% |
| Nina | 6/10 | 4790 days | |
0.0 | 0% |
| Inga | 5/10 | 4790 days | |
0.0 | 0% |
| FredAndersson | 6/10 | 4794 days | |
0.0 | 0% |
| Cat | 9/10 | 4796 days | |
0.0 | 0% |
| SallySpencer | 3/10 | 4809 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 ZORB Rotorua experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-0.48% Adjustment
There may be an adjustment if an experience hasn't received any reviews within the last 60 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 199 days.
The ZORB Rotorua experience has been adjusted for 24 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 21 | -0.42% |
| 22 | -0.44% |
| 23 | -0.46% |
| 24 | -0.48% |
| 25 | -0.50% |
| 26 | -0.52% |
| 27 | -0.54% |
| … | … |
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.