Kia ora, 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 Tongariro River Rafting.
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.
Tongariro River Rafting
Valid Reviews
171 Valid Reviews
The Tongariro River Rafting experience has a total of 172 reviews. There are 171 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 171 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 147 |
|
86% |
| 9/10 | 17 |
|
10% |
| 8/10 | 5 |
|
3% |
| 7/10 | 2 |
|
1% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
98.07% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.07% and is based on 171 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
14 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 171 valid reviews, the experience has 14 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 14 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 8 |
|
57% |
| 9/10 | 2 |
|
14% |
| 8/10 | 3 |
|
21% |
| 7/10 | 1 |
|
7% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
92.14% Average
The raw data average (mean) for all the Tongariro River Rafting face-to-face reviews is 92.14% and is based on 14 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
99.67%
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 |
|---|---|---|---|
| Vanessa Shankaran Tasker | 10/10 | 80 days | 100% |
| Lynda B | 10/10 | 142 days | 99% |
| V Buys | 10/10 | 386 days | 92% |
| Cody | 10/10 | 417 days | 90% |
| Madonna Thomson | 10/10 | 507 days | 86% |
| Amanda Thomson | 10/10 | 782 days | 65% |
| Peter Little | 10/10 | 811 days | 63% |
| Michaela Liff | 10/10 | 1056 days | 39% |
| Kusum | 10/10 | 1513 days | 11% |
| Betty Dunn | 10/10 | 1541 days | 10% |
| Ruth | 10/10 | 2121 days | 4% |
| Gary Koh | 10/10 | 2334 days | 4% |
| Jan | 10/10 | 2364 days | 4% |
| Alison B. | 10/10 | 2364 days | 4% |
| John Olsen | 10/10 | 2395 days | 4% |
| Peter | 10/10 | 2487 days | 4% |
| Ben | 10/10 | 2517 days | 4% |
| Ian | 10/10 | 2578 days | 4% |
| Gary Walker | 10/10 | 2578 days | 4% |
| Rowella Bacwaden | 10/10 | 2609 days | 3% |
| Eileen H | 10/10 | 2668 days | 3% |
| Brad | 10/10 | 2729 days | 3% |
| Jared London | 10/10 | 2760 days | 3% |
| Helen Turner | 10/10 | 2790 days | 3% |
| James | 10/10 | 2821 days | 3% |
| Isabelle_Qc | 10/10 | 2852 days | 3% |
| Laura | 10/10 | 2882 days | 3% |
| ACE Richardson | 10/10 | 2913 days | 3% |
| Thea :-) | 10/10 | 2974 days | 3% |
| William Webb | 10/10 | 3002 days | 3% |
| Katelyn Mills | 10/10 | 3002 days | 3% |
| Mrs Smith | 10/10 | 3002 days | 3% |
| Mel | 10/10 | 3002 days | 3% |
| Wayne Smith | 10/10 | 3002 days | 3% |
| Kim | 10/10 | 3033 days | 3% |
| Songyang Liu | 10/10 | 3033 days | 3% |
| Mark Haydon | 10/10 | 3367 days | 2% |
| Kathryn Sherlock | 10/10 | 3582 days | 2% |
| Cherie Kemp | 10/10 | 3582 days | 2% |
| Renee Kemp | 10/10 | 3582 days | 2% |
| Patrick McIvor | 10/10 | 3704 days | 1% |
| Lengxi | 10/10 | 3730 days | 1% |
| Uschi Pongratz | 10/10 | 3738 days | 1% |
| Jessica Ruhland | 10/10 | 3738 days | 1% |
| Paul | 7/10 | 3743 days | 1% |
| Philip Piel | 8/10 | 3743 days | 1% |
| Chiara | 8/10 | 3743 days | 1% |
| Jess | 10/10 | 3780 days | 1% |
| TashJ | 10/10 | 3795 days | 1% |
| Funny Schutt | 10/10 | 3795 days | 1% |
| Craig McCarthy | 10/10 | 3825 days | 1% |
| Tim K | 10/10 | 3825 days | 1% |
| Jack Shearer | 10/10 | 3948 days | 1% |
| Monika M | 10/10 | 3978 days | 1% |
| Ian Wilmot | 10/10 | 4039 days | 1% |
| Rodger Lamb | 10/10 | 4070 days | 1% |
| Leah Kyllo | 10/10 | 4129 days | 0% |
| Juliet Battersby | 10/10 | 4129 days | 0% |
| Chris C | 10/10 | 4190 days | 0% |
| Jessica | 10/10 | 4282 days | 0% |
| Mike Hollows | 10/10 | 4374 days | 0% |
| Monique Hollows | 10/10 | 4435 days | 1% |
| Thomas Subritzky | 10/10 | 4435 days | 1% |
| hmsteele | 10/10 | 4463 days | 1% |
| andy godfrey | 9/10 | 4494 days | 1% |
| Chris Nisbet | 8/10 | 4494 days | 1% |
| Michelle Sanders | 9/10 | 4525 days | 1% |
| phil costello | 8/10 | 4555 days | 1% |
| Robyn Orchard | 10/10 | 4586 days | 1% |
| Gisele Phillips | 9/10 | 4586 days | 1% |
| E Wall | 10/10 | 4586 days | 1% |
| Julie | 10/10 | 4616 days | 1% |
| Little | 10/10 | 4616 days | 1% |
| Grahame Keast | 10/10 | 4647 days | 1% |
| Linda Bates | 10/10 | 4647 days | 1% |
| Morgan Buckingham | 10/10 | 4647 days | 1% |
| Bertiethebus | 10/10 | 4769 days | 1% |
| Julian Roots | 10/10 | 4800 days | 1% |
| Lynette Nicolson | 10/10 | 4859 days | 1% |
| RENs Rens | 10/10 | 4859 days | 1% |
| CKDNH | 10/10 | 4920 days | 1% |
| mattus | 9/10 | 4920 days | 1% |
| Ken | 10/10 | 4920 days | 1% |
| Kathy27 | 10/10 | 4920 days | 1% |
| ladywithplants | 9/10 | 4981 days | 1% |
| princessliz | 10/10 | 4981 days | 1% |
| lariley | 9/10 | 4981 days | 1% |
| richardp | 10/10 | 5012 days | 1% |
| prasanth03 | 10/10 | 5043 days | 1% |
| EllieW | 10/10 | 5073 days | 1% |
| Terry | 10/10 | 5134 days | 1% |
| Borderland | 10/10 | 5165 days | 1% |
| jimbob | 10/10 | 5165 days | 1% |
| mopheim | 10/10 | 5165 days | 1% |
| Mats Harstedt | 9/10 | 5174 days | 1% |
| KateS | 10/10 | 5194 days | 1% |
| RubberDuck | 10/10 | 5225 days | 1% |
| Red_Hurring | 10/10 | 5225 days | 1% |
| travelpam | 10/10 | 5225 days | 1% |
| barjjake | 9/10 | 5225 days | 1% |
| cindyd | 10/10 | 5256 days | 1% |
| webstersuk | 10/10 | 5256 days | 1% |
| pezalone | 10/10 | 5256 days | 1% |
| WiseOwl | 10/10 | 5256 days | 1% |
| mausandhari | 10/10 | 5256 days | 1% |
| Pauline | 10/10 | 5286 days | 1% |
| JadesWorld | 9/10 | 5286 days | 1% |
| utstarfish | 10/10 | 5286 days | 1% |
| johnco78 | 10/10 | 5286 days | 1% |
| jrwholey | 10/10 | 5317 days | 1% |
| ShawnM | 10/10 | 5317 days | 1% |
| Tarsh | 10/10 | 5317 days | 1% |
| lindahealey | 10/10 | 5317 days | 1% |
| campbell_steven | 10/10 | 5347 days | 1% |
| markrussell | 10/10 | 5347 days | 1% |
| Bayneer | 10/10 | 5347 days | 1% |
| jaspreetsohal86 | 10/10 | 5347 days | 1% |
| kiwiholly | 10/10 | 5347 days | 1% |
| garethd1980 | 10/10 | 5347 days | 1% |
| Mulliano | 10/10 | 5347 days | 1% |
| CathyK | 10/10 | 5378 days | 1% |
| silver | 10/10 | 5378 days | 1% |
| Meyerclan | 10/10 | 5409 days | 1% |
| poetania | 10/10 | 5439 days | 1% |
| southernboy611 | 10/10 | 5439 days | 1% |
| EvilChris | 10/10 | 5470 days | 1% |
| nia427 | 10/10 | 5500 days | 1% |
| Mags620 | 10/10 | 5500 days | 1% |
| deanblackburn | 10/10 | 5500 days | 1% |
| Heatherorchard | 10/10 | 5531 days | 1% |
| BeetleBom | 10/10 | 5531 days | 1% |
| AnnaBain | 10/10 | 5559 days | 1% |
| geezer | 10/10 | 5559 days | 1% |
| Jen | 10/10 | 5559 days | 1% |
| busheybrew | 10/10 | 5559 days | 1% |
| painter47 | 10/10 | 5590 days | 1% |
| ganbji | 9/10 | 5590 days | 1% |
| charles | 10/10 | 5621 days | 1% |
| alanos | 9/10 | 5621 days | 1% |
| teeneelz | 10/10 | 5621 days | 1% |
| Douggie | 7/10 | 5712 days | 1% |
| celticcolleen | 10/10 | 5835 days | 1% |
| MarcyMark | 10/10 | 5865 days | 1% |
| Susiekj | 10/10 | 5896 days | 1% |
| Kirsten | 10/10 | 5924 days | 1% |
| Ravi Chand | 10/10 | 5955 days | 1% |
| Sika | 10/10 | 5955 days | 1% |
| anthony mcclaren | 9/10 | 5955 days | 1% |
| menzel | 10/10 | 5969 days | 1% |
| joannaw | 10/10 | 5971 days | 1% |
| meisterbaumann | 10/10 | 5986 days | 1% |
| Stefanie Micheler | 10/10 | 5997 days | 1% |
| Aussies | 10/10 | 6016 days | 1% |
| Jake Volle | 10/10 | 6016 days | 1% |
| Jess Woods | 10/10 | 6077 days | 1% |
| emmah | 9/10 | 6113 days | 1% |
| Dave Roebuck | 10/10 | 6139 days | 1% |
| steph_m | 9/10 | 6240 days | 1% |
| JasonL | 8/10 | 6242 days | 1% |
| Tanja Kirschmann | 10/10 | 6244 days | 1% |
| MicheyJ | 10/10 | 6246 days | 1% |
| caz | 10/10 | 6266 days | 1% |
| Cilla | 10/10 | 6272 days | 1% |
| Hannah | 10/10 | 6274 days | 1% |
| karlijn schaap | 10/10 | 6351 days | 1% |
| Murray | 10/10 | 6381 days | 1% |
| Jan Burch | 9/10 | 6493 days | 1% |
| zane mirfin | 10/10 | 6550 days | 1% |
| becky | 10/10 | 6578 days | 1% |
| dave | 9/10 | 6606 days | 1% |
| shinylight | 9/10 | 6637 days | 1% |
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 Tongariro River Rafting experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-0.94% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 70 days. However the Tongariro River Rafting 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 Tongariro River Rafting experience has been adjusted for 57 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 54 | -0.89% |
| 55 | -0.91% |
| 56 | -0.93% |
| 57 | -0.94% |
| 58 | -0.96% |
| 59 | -0.98% |
| 60 | -0.99% |
| … | … |
Balancing Adjustment
0.11% 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
99%
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.