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 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
166 Valid Reviews
The Tongariro River Rafting experience has a total of 167 reviews. There are 166 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 166 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 142 |
|
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% |
98.01% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.01% and is based on 166 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 166 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
99.50%
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 |
|---|---|---|---|
| Amanda Thomson | 10/10 | 255 days | 100% |
| Peter Little | 10/10 | 284 days | 99% |
| Michaela Liff | 10/10 | 529 days | 87% |
| Kusum | 10/10 | 986 days | 47% |
| Betty Dunn | 10/10 | 1014 days | 44% |
| Ruth | 10/10 | 1594 days | 8% |
| Gary Koh | 10/10 | 1807 days | 5% |
| Jan | 10/10 | 1837 days | 5% |
| Alison B. | 10/10 | 1837 days | 5% |
| John Olsen | 10/10 | 1868 days | 5% |
| Peter | 10/10 | 1960 days | 5% |
| Ben | 10/10 | 1990 days | 5% |
| Ian | 10/10 | 2051 days | 5% |
| Gary Walker | 10/10 | 2051 days | 5% |
| Rowella Bacwaden | 10/10 | 2082 days | 5% |
| Eileen H | 10/10 | 2141 days | 4% |
| Brad | 10/10 | 2202 days | 4% |
| Jared London | 10/10 | 2233 days | 4% |
| Helen Turner | 10/10 | 2263 days | 4% |
| James | 10/10 | 2294 days | 4% |
| Isabelle_Qc | 10/10 | 2325 days | 4% |
| Laura | 10/10 | 2355 days | 4% |
| ACE Richardson | 10/10 | 2386 days | 4% |
| Thea :-) | 10/10 | 2447 days | 4% |
| William Webb | 10/10 | 2475 days | 4% |
| Katelyn Mills | 10/10 | 2475 days | 4% |
| Mrs Smith | 10/10 | 2475 days | 4% |
| Mel | 10/10 | 2475 days | 4% |
| Wayne Smith | 10/10 | 2475 days | 4% |
| Kim | 10/10 | 2506 days | 4% |
| Songyang Liu | 10/10 | 2506 days | 4% |
| Mark Haydon | 10/10 | 2840 days | 3% |
| Kathryn Sherlock | 10/10 | 3055 days | 3% |
| Cherie Kemp | 10/10 | 3055 days | 3% |
| Renee Kemp | 10/10 | 3055 days | 3% |
| Patrick McIvor | 10/10 | 3177 days | 2% |
| Lengxi | 10/10 | 3203 days | 1% |
| Uschi Pongratz | 10/10 | 3211 days | 1% |
| Jessica Ruhland | 10/10 | 3211 days | 1% |
| Paul | 7/10 | 3216 days | 1% |
| Philip Piel | 8/10 | 3216 days | 1% |
| Chiara | 8/10 | 3216 days | 1% |
| Jess | 10/10 | 3253 days | 1% |
| TashJ | 10/10 | 3268 days | 2% |
| Funny Schutt | 10/10 | 3268 days | 2% |
| Craig McCarthy | 10/10 | 3298 days | 2% |
| Tim K | 10/10 | 3298 days | 2% |
| Jack Shearer | 10/10 | 3421 days | 2% |
| Monika M | 10/10 | 3451 days | 2% |
| Ian Wilmot | 10/10 | 3512 days | 2% |
| Rodger Lamb | 10/10 | 3543 days | 2% |
| Leah Kyllo | 10/10 | 3602 days | 1% |
| Juliet Battersby | 10/10 | 3602 days | 1% |
| Chris C | 10/10 | 3663 days | 1% |
| Jessica | 10/10 | 3755 days | 1% |
| Mike Hollows | 10/10 | 3847 days | 1% |
| Monique Hollows | 10/10 | 3908 days | 1% |
| Thomas Subritzky | 10/10 | 3908 days | 1% |
| hmsteele | 10/10 | 3936 days | 1% |
| andy godfrey | 9/10 | 3967 days | 1% |
| Chris Nisbet | 8/10 | 3967 days | 1% |
| Michelle Sanders | 9/10 | 3998 days | 1% |
| phil costello | 8/10 | 4028 days | 1% |
| Robyn Orchard | 10/10 | 4059 days | 1% |
| Gisele Phillips | 9/10 | 4059 days | 1% |
| E Wall | 10/10 | 4059 days | 1% |
| Julie | 10/10 | 4089 days | 0% |
| Little | 10/10 | 4089 days | 0% |
| Grahame Keast | 10/10 | 4120 days | 0% |
| Linda Bates | 10/10 | 4120 days | 0% |
| Morgan Buckingham | 10/10 | 4120 days | 0% |
| Bertiethebus | 10/10 | 4242 days | 0% |
| Julian Roots | 10/10 | 4273 days | 0% |
| Lynette Nicolson | 10/10 | 4332 days | 0% |
| RENs Rens | 10/10 | 4332 days | 0% |
| CKDNH | 10/10 | 4393 days | 1% |
| mattus | 9/10 | 4393 days | 1% |
| Ken | 10/10 | 4393 days | 1% |
| Kathy27 | 10/10 | 4393 days | 1% |
| ladywithplants | 9/10 | 4454 days | 1% |
| princessliz | 10/10 | 4454 days | 1% |
| lariley | 9/10 | 4454 days | 1% |
| richardp | 10/10 | 4485 days | 1% |
| prasanth03 | 10/10 | 4516 days | 1% |
| EllieW | 10/10 | 4546 days | 1% |
| Terry | 10/10 | 4607 days | 1% |
| Borderland | 10/10 | 4638 days | 1% |
| jimbob | 10/10 | 4638 days | 1% |
| mopheim | 10/10 | 4638 days | 1% |
| Mats Harstedt | 9/10 | 4647 days | 1% |
| KateS | 10/10 | 4667 days | 1% |
| RubberDuck | 10/10 | 4698 days | 1% |
| Red_Hurring | 10/10 | 4698 days | 1% |
| travelpam | 10/10 | 4698 days | 1% |
| barjjake | 9/10 | 4698 days | 1% |
| cindyd | 10/10 | 4729 days | 1% |
| webstersuk | 10/10 | 4729 days | 1% |
| pezalone | 10/10 | 4729 days | 1% |
| WiseOwl | 10/10 | 4729 days | 1% |
| mausandhari | 10/10 | 4729 days | 1% |
| Pauline | 10/10 | 4759 days | 1% |
| JadesWorld | 9/10 | 4759 days | 1% |
| utstarfish | 10/10 | 4759 days | 1% |
| johnco78 | 10/10 | 4759 days | 1% |
| jrwholey | 10/10 | 4790 days | 1% |
| ShawnM | 10/10 | 4790 days | 1% |
| Tarsh | 10/10 | 4790 days | 1% |
| lindahealey | 10/10 | 4790 days | 1% |
| campbell_steven | 10/10 | 4820 days | 1% |
| markrussell | 10/10 | 4820 days | 1% |
| Bayneer | 10/10 | 4820 days | 1% |
| jaspreetsohal86 | 10/10 | 4820 days | 1% |
| kiwiholly | 10/10 | 4820 days | 1% |
| garethd1980 | 10/10 | 4820 days | 1% |
| Mulliano | 10/10 | 4820 days | 1% |
| CathyK | 10/10 | 4851 days | 1% |
| silver | 10/10 | 4851 days | 1% |
| Meyerclan | 10/10 | 4882 days | 1% |
| poetania | 10/10 | 4912 days | 1% |
| southernboy611 | 10/10 | 4912 days | 1% |
| EvilChris | 10/10 | 4943 days | 1% |
| nia427 | 10/10 | 4973 days | 1% |
| Mags620 | 10/10 | 4973 days | 1% |
| deanblackburn | 10/10 | 4973 days | 1% |
| Heatherorchard | 10/10 | 5004 days | 1% |
| BeetleBom | 10/10 | 5004 days | 1% |
| AnnaBain | 10/10 | 5032 days | 1% |
| geezer | 10/10 | 5032 days | 1% |
| Jen | 10/10 | 5032 days | 1% |
| busheybrew | 10/10 | 5032 days | 1% |
| painter47 | 10/10 | 5063 days | 1% |
| ganbji | 9/10 | 5063 days | 1% |
| charles | 10/10 | 5094 days | 1% |
| alanos | 9/10 | 5094 days | 1% |
| teeneelz | 10/10 | 5094 days | 1% |
| Douggie | 7/10 | 5185 days | 1% |
| celticcolleen | 10/10 | 5308 days | 1% |
| MarcyMark | 10/10 | 5338 days | 1% |
| Susiekj | 10/10 | 5369 days | 1% |
| Kirsten | 10/10 | 5397 days | 1% |
| Ravi Chand | 10/10 | 5428 days | 1% |
| Sika | 10/10 | 5428 days | 1% |
| anthony mcclaren | 9/10 | 5428 days | 1% |
| menzel | 10/10 | 5442 days | 1% |
| joannaw | 10/10 | 5444 days | 1% |
| meisterbaumann | 10/10 | 5459 days | 1% |
| Stefanie Micheler | 10/10 | 5470 days | 1% |
| Aussies | 10/10 | 5489 days | 1% |
| Jake Volle | 10/10 | 5489 days | 1% |
| Jess Woods | 10/10 | 5550 days | 1% |
| emmah | 9/10 | 5586 days | 1% |
| Dave Roebuck | 10/10 | 5612 days | 1% |
| steph_m | 9/10 | 5713 days | 1% |
| JasonL | 8/10 | 5715 days | 1% |
| Tanja Kirschmann | 10/10 | 5717 days | 1% |
| MicheyJ | 10/10 | 5719 days | 1% |
| caz | 10/10 | 5739 days | 1% |
| Cilla | 10/10 | 5745 days | 1% |
| Hannah | 10/10 | 5747 days | 1% |
| karlijn schaap | 10/10 | 5824 days | 1% |
| Murray | 10/10 | 5854 days | 1% |
| Jan Burch | 9/10 | 5966 days | 1% |
| zane mirfin | 10/10 | 6023 days | 1% |
| becky | 10/10 | 6050 days | 1% |
| dave | 9/10 | 6078 days | 1% |
| shinylight | 9/10 | 6110 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
-3.98% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 46 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 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.92% |
| 198 | -3.94% |
| 199 | -3.96% |
| 200 | -3.98% |
| 201 | -4.00% |
| 202 | -4.02% |
| 203 | -4.04% |
| … | … |
Balancing Adjustment
0.39% 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
96%
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.