G'day, 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 | 265 days | 100% |
| Peter Little | 10/10 | 294 days | 99% |
| Michaela Liff | 10/10 | 539 days | 87% |
| Kusum | 10/10 | 996 days | 46% |
| Betty Dunn | 10/10 | 1024 days | 43% |
| Ruth | 10/10 | 1604 days | 8% |
| Gary Koh | 10/10 | 1817 days | 5% |
| Jan | 10/10 | 1847 days | 5% |
| Alison B. | 10/10 | 1847 days | 5% |
| John Olsen | 10/10 | 1878 days | 5% |
| Peter | 10/10 | 1970 days | 5% |
| Ben | 10/10 | 2000 days | 5% |
| Ian | 10/10 | 2061 days | 5% |
| Gary Walker | 10/10 | 2061 days | 5% |
| Rowella Bacwaden | 10/10 | 2092 days | 5% |
| Eileen H | 10/10 | 2151 days | 4% |
| Brad | 10/10 | 2212 days | 4% |
| Jared London | 10/10 | 2243 days | 4% |
| Helen Turner | 10/10 | 2273 days | 4% |
| James | 10/10 | 2304 days | 4% |
| Isabelle_Qc | 10/10 | 2335 days | 4% |
| Laura | 10/10 | 2365 days | 4% |
| ACE Richardson | 10/10 | 2396 days | 4% |
| Thea :-) | 10/10 | 2457 days | 4% |
| William Webb | 10/10 | 2485 days | 4% |
| Katelyn Mills | 10/10 | 2485 days | 4% |
| Mrs Smith | 10/10 | 2485 days | 4% |
| Mel | 10/10 | 2485 days | 4% |
| Wayne Smith | 10/10 | 2485 days | 4% |
| Kim | 10/10 | 2516 days | 4% |
| Songyang Liu | 10/10 | 2516 days | 4% |
| Mark Haydon | 10/10 | 2850 days | 3% |
| Kathryn Sherlock | 10/10 | 3065 days | 3% |
| Cherie Kemp | 10/10 | 3065 days | 3% |
| Renee Kemp | 10/10 | 3065 days | 3% |
| Patrick McIvor | 10/10 | 3187 days | 2% |
| Lengxi | 10/10 | 3213 days | 1% |
| Uschi Pongratz | 10/10 | 3221 days | 1% |
| Jessica Ruhland | 10/10 | 3221 days | 1% |
| Paul | 7/10 | 3226 days | 1% |
| Philip Piel | 8/10 | 3226 days | 1% |
| Chiara | 8/10 | 3226 days | 1% |
| Jess | 10/10 | 3263 days | 1% |
| TashJ | 10/10 | 3278 days | 2% |
| Funny Schutt | 10/10 | 3278 days | 2% |
| Craig McCarthy | 10/10 | 3308 days | 2% |
| Tim K | 10/10 | 3308 days | 2% |
| Jack Shearer | 10/10 | 3431 days | 2% |
| Monika M | 10/10 | 3461 days | 2% |
| Ian Wilmot | 10/10 | 3522 days | 2% |
| Rodger Lamb | 10/10 | 3553 days | 2% |
| Leah Kyllo | 10/10 | 3612 days | 1% |
| Juliet Battersby | 10/10 | 3612 days | 1% |
| Chris C | 10/10 | 3673 days | 1% |
| Jessica | 10/10 | 3765 days | 1% |
| Mike Hollows | 10/10 | 3857 days | 1% |
| Monique Hollows | 10/10 | 3918 days | 1% |
| Thomas Subritzky | 10/10 | 3918 days | 1% |
| hmsteele | 10/10 | 3946 days | 1% |
| andy godfrey | 9/10 | 3977 days | 1% |
| Chris Nisbet | 8/10 | 3977 days | 1% |
| Michelle Sanders | 9/10 | 4008 days | 1% |
| phil costello | 8/10 | 4038 days | 1% |
| Robyn Orchard | 10/10 | 4069 days | 1% |
| Gisele Phillips | 9/10 | 4069 days | 1% |
| E Wall | 10/10 | 4069 days | 1% |
| Julie | 10/10 | 4099 days | 0% |
| Little | 10/10 | 4099 days | 0% |
| Grahame Keast | 10/10 | 4130 days | 0% |
| Linda Bates | 10/10 | 4130 days | 0% |
| Morgan Buckingham | 10/10 | 4130 days | 0% |
| Bertiethebus | 10/10 | 4252 days | 0% |
| Julian Roots | 10/10 | 4283 days | 0% |
| Lynette Nicolson | 10/10 | 4342 days | 0% |
| RENs Rens | 10/10 | 4342 days | 0% |
| CKDNH | 10/10 | 4403 days | 1% |
| mattus | 9/10 | 4403 days | 1% |
| Ken | 10/10 | 4403 days | 1% |
| Kathy27 | 10/10 | 4403 days | 1% |
| ladywithplants | 9/10 | 4464 days | 1% |
| princessliz | 10/10 | 4464 days | 1% |
| lariley | 9/10 | 4464 days | 1% |
| richardp | 10/10 | 4495 days | 1% |
| prasanth03 | 10/10 | 4526 days | 1% |
| EllieW | 10/10 | 4556 days | 1% |
| Terry | 10/10 | 4617 days | 1% |
| Borderland | 10/10 | 4648 days | 1% |
| jimbob | 10/10 | 4648 days | 1% |
| mopheim | 10/10 | 4648 days | 1% |
| Mats Harstedt | 9/10 | 4657 days | 1% |
| KateS | 10/10 | 4677 days | 1% |
| RubberDuck | 10/10 | 4708 days | 1% |
| Red_Hurring | 10/10 | 4708 days | 1% |
| travelpam | 10/10 | 4708 days | 1% |
| barjjake | 9/10 | 4708 days | 1% |
| cindyd | 10/10 | 4739 days | 1% |
| webstersuk | 10/10 | 4739 days | 1% |
| pezalone | 10/10 | 4739 days | 1% |
| WiseOwl | 10/10 | 4739 days | 1% |
| mausandhari | 10/10 | 4739 days | 1% |
| Pauline | 10/10 | 4769 days | 1% |
| JadesWorld | 9/10 | 4769 days | 1% |
| utstarfish | 10/10 | 4769 days | 1% |
| johnco78 | 10/10 | 4769 days | 1% |
| jrwholey | 10/10 | 4800 days | 1% |
| ShawnM | 10/10 | 4800 days | 1% |
| Tarsh | 10/10 | 4800 days | 1% |
| lindahealey | 10/10 | 4800 days | 1% |
| campbell_steven | 10/10 | 4830 days | 1% |
| markrussell | 10/10 | 4830 days | 1% |
| Bayneer | 10/10 | 4830 days | 1% |
| jaspreetsohal86 | 10/10 | 4830 days | 1% |
| kiwiholly | 10/10 | 4830 days | 1% |
| garethd1980 | 10/10 | 4830 days | 1% |
| Mulliano | 10/10 | 4830 days | 1% |
| CathyK | 10/10 | 4861 days | 1% |
| silver | 10/10 | 4861 days | 1% |
| Meyerclan | 10/10 | 4892 days | 1% |
| poetania | 10/10 | 4922 days | 1% |
| southernboy611 | 10/10 | 4922 days | 1% |
| EvilChris | 10/10 | 4953 days | 1% |
| nia427 | 10/10 | 4983 days | 1% |
| Mags620 | 10/10 | 4983 days | 1% |
| deanblackburn | 10/10 | 4983 days | 1% |
| Heatherorchard | 10/10 | 5014 days | 1% |
| BeetleBom | 10/10 | 5014 days | 1% |
| AnnaBain | 10/10 | 5042 days | 1% |
| geezer | 10/10 | 5042 days | 1% |
| Jen | 10/10 | 5042 days | 1% |
| busheybrew | 10/10 | 5042 days | 1% |
| painter47 | 10/10 | 5073 days | 1% |
| ganbji | 9/10 | 5073 days | 1% |
| charles | 10/10 | 5104 days | 1% |
| alanos | 9/10 | 5104 days | 1% |
| teeneelz | 10/10 | 5104 days | 1% |
| Douggie | 7/10 | 5195 days | 1% |
| celticcolleen | 10/10 | 5318 days | 1% |
| MarcyMark | 10/10 | 5348 days | 1% |
| Susiekj | 10/10 | 5379 days | 1% |
| Kirsten | 10/10 | 5407 days | 1% |
| Ravi Chand | 10/10 | 5438 days | 1% |
| Sika | 10/10 | 5438 days | 1% |
| anthony mcclaren | 9/10 | 5438 days | 1% |
| menzel | 10/10 | 5452 days | 1% |
| joannaw | 10/10 | 5454 days | 1% |
| meisterbaumann | 10/10 | 5469 days | 1% |
| Stefanie Micheler | 10/10 | 5480 days | 1% |
| Aussies | 10/10 | 5499 days | 1% |
| Jake Volle | 10/10 | 5499 days | 1% |
| Jess Woods | 10/10 | 5560 days | 1% |
| emmah | 9/10 | 5596 days | 1% |
| Dave Roebuck | 10/10 | 5622 days | 1% |
| steph_m | 9/10 | 5723 days | 1% |
| JasonL | 8/10 | 5725 days | 1% |
| Tanja Kirschmann | 10/10 | 5727 days | 1% |
| MicheyJ | 10/10 | 5729 days | 1% |
| caz | 10/10 | 5749 days | 1% |
| Cilla | 10/10 | 5755 days | 1% |
| Hannah | 10/10 | 5757 days | 1% |
| karlijn schaap | 10/10 | 5834 days | 1% |
| Murray | 10/10 | 5864 days | 1% |
| Jan Burch | 9/10 | 5976 days | 1% |
| zane mirfin | 10/10 | 6033 days | 1% |
| becky | 10/10 | 6061 days | 1% |
| dave | 9/10 | 6089 days | 1% |
| shinylight | 9/10 | 6120 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
-4.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 43 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
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.