Hey, 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
170 Valid Reviews
The Tongariro River Rafting experience has a total of 171 reviews. There are 170 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 170 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 146 |
|
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% |
98.06% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.06% and is based on 170 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 170 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
99.64%
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 |
|---|---|---|---|
| Lynda B | 10/10 | 39 days | 100% |
| V Buys | 10/10 | 283 days | 96% |
| Cody | 10/10 | 314 days | 94% |
| Madonna Thomson | 10/10 | 404 days | 91% |
| Amanda Thomson | 10/10 | 679 days | 74% |
| Peter Little | 10/10 | 708 days | 71% |
| Michaela Liff | 10/10 | 953 days | 48% |
| Kusum | 10/10 | 1410 days | 15% |
| Betty Dunn | 10/10 | 1438 days | 14% |
| Ruth | 10/10 | 2018 days | 5% |
| Gary Koh | 10/10 | 2231 days | 4% |
| Jan | 10/10 | 2261 days | 4% |
| Alison B. | 10/10 | 2261 days | 4% |
| John Olsen | 10/10 | 2292 days | 4% |
| Peter | 10/10 | 2384 days | 4% |
| Ben | 10/10 | 2414 days | 4% |
| Ian | 10/10 | 2475 days | 4% |
| Gary Walker | 10/10 | 2475 days | 4% |
| Rowella Bacwaden | 10/10 | 2506 days | 4% |
| Eileen H | 10/10 | 2565 days | 4% |
| Brad | 10/10 | 2626 days | 3% |
| Jared London | 10/10 | 2657 days | 3% |
| Helen Turner | 10/10 | 2687 days | 3% |
| James | 10/10 | 2718 days | 3% |
| Isabelle_Qc | 10/10 | 2749 days | 3% |
| Laura | 10/10 | 2779 days | 3% |
| ACE Richardson | 10/10 | 2810 days | 3% |
| Thea :-) | 10/10 | 2871 days | 3% |
| William Webb | 10/10 | 2899 days | 3% |
| Katelyn Mills | 10/10 | 2899 days | 3% |
| Mrs Smith | 10/10 | 2899 days | 3% |
| Mel | 10/10 | 2899 days | 3% |
| Wayne Smith | 10/10 | 2899 days | 3% |
| Kim | 10/10 | 2930 days | 3% |
| Songyang Liu | 10/10 | 2930 days | 3% |
| Mark Haydon | 10/10 | 3264 days | 2% |
| Kathryn Sherlock | 10/10 | 3479 days | 2% |
| Cherie Kemp | 10/10 | 3479 days | 2% |
| Renee Kemp | 10/10 | 3479 days | 2% |
| Patrick McIvor | 10/10 | 3601 days | 1% |
| Lengxi | 10/10 | 3627 days | 1% |
| Uschi Pongratz | 10/10 | 3635 days | 1% |
| Jessica Ruhland | 10/10 | 3635 days | 1% |
| Paul | 7/10 | 3640 days | 1% |
| Philip Piel | 8/10 | 3640 days | 1% |
| Chiara | 8/10 | 3640 days | 1% |
| Jess | 10/10 | 3677 days | 1% |
| TashJ | 10/10 | 3692 days | 1% |
| Funny Schutt | 10/10 | 3692 days | 1% |
| Craig McCarthy | 10/10 | 3722 days | 1% |
| Tim K | 10/10 | 3722 days | 1% |
| Jack Shearer | 10/10 | 3845 days | 1% |
| Monika M | 10/10 | 3875 days | 1% |
| Ian Wilmot | 10/10 | 3936 days | 1% |
| Rodger Lamb | 10/10 | 3967 days | 1% |
| Leah Kyllo | 10/10 | 4026 days | 1% |
| Juliet Battersby | 10/10 | 4026 days | 1% |
| Chris C | 10/10 | 4087 days | 1% |
| Jessica | 10/10 | 4179 days | 0% |
| Mike Hollows | 10/10 | 4271 days | 0% |
| Monique Hollows | 10/10 | 4332 days | 0% |
| Thomas Subritzky | 10/10 | 4332 days | 0% |
| hmsteele | 10/10 | 4360 days | 0% |
| andy godfrey | 9/10 | 4391 days | 1% |
| Chris Nisbet | 8/10 | 4391 days | 1% |
| Michelle Sanders | 9/10 | 4422 days | 1% |
| phil costello | 8/10 | 4452 days | 1% |
| Robyn Orchard | 10/10 | 4483 days | 1% |
| Gisele Phillips | 9/10 | 4483 days | 1% |
| E Wall | 10/10 | 4483 days | 1% |
| Julie | 10/10 | 4513 days | 1% |
| Little | 10/10 | 4513 days | 1% |
| Grahame Keast | 10/10 | 4544 days | 1% |
| Linda Bates | 10/10 | 4544 days | 1% |
| Morgan Buckingham | 10/10 | 4544 days | 1% |
| Bertiethebus | 10/10 | 4666 days | 1% |
| Julian Roots | 10/10 | 4697 days | 1% |
| Lynette Nicolson | 10/10 | 4756 days | 1% |
| RENs Rens | 10/10 | 4756 days | 1% |
| CKDNH | 10/10 | 4817 days | 1% |
| mattus | 9/10 | 4817 days | 1% |
| Ken | 10/10 | 4817 days | 1% |
| Kathy27 | 10/10 | 4817 days | 1% |
| ladywithplants | 9/10 | 4878 days | 1% |
| princessliz | 10/10 | 4878 days | 1% |
| lariley | 9/10 | 4878 days | 1% |
| richardp | 10/10 | 4909 days | 1% |
| prasanth03 | 10/10 | 4940 days | 1% |
| EllieW | 10/10 | 4970 days | 1% |
| Terry | 10/10 | 5031 days | 1% |
| Borderland | 10/10 | 5062 days | 1% |
| jimbob | 10/10 | 5062 days | 1% |
| mopheim | 10/10 | 5062 days | 1% |
| Mats Harstedt | 9/10 | 5071 days | 1% |
| KateS | 10/10 | 5091 days | 1% |
| RubberDuck | 10/10 | 5122 days | 1% |
| Red_Hurring | 10/10 | 5122 days | 1% |
| travelpam | 10/10 | 5122 days | 1% |
| barjjake | 9/10 | 5122 days | 1% |
| cindyd | 10/10 | 5153 days | 1% |
| webstersuk | 10/10 | 5153 days | 1% |
| pezalone | 10/10 | 5153 days | 1% |
| WiseOwl | 10/10 | 5153 days | 1% |
| mausandhari | 10/10 | 5153 days | 1% |
| Pauline | 10/10 | 5183 days | 1% |
| JadesWorld | 9/10 | 5183 days | 1% |
| utstarfish | 10/10 | 5183 days | 1% |
| johnco78 | 10/10 | 5183 days | 1% |
| jrwholey | 10/10 | 5214 days | 1% |
| ShawnM | 10/10 | 5214 days | 1% |
| Tarsh | 10/10 | 5214 days | 1% |
| lindahealey | 10/10 | 5214 days | 1% |
| campbell_steven | 10/10 | 5244 days | 1% |
| markrussell | 10/10 | 5244 days | 1% |
| Bayneer | 10/10 | 5244 days | 1% |
| jaspreetsohal86 | 10/10 | 5244 days | 1% |
| kiwiholly | 10/10 | 5244 days | 1% |
| garethd1980 | 10/10 | 5244 days | 1% |
| Mulliano | 10/10 | 5244 days | 1% |
| CathyK | 10/10 | 5275 days | 1% |
| silver | 10/10 | 5275 days | 1% |
| Meyerclan | 10/10 | 5306 days | 1% |
| poetania | 10/10 | 5336 days | 1% |
| southernboy611 | 10/10 | 5336 days | 1% |
| EvilChris | 10/10 | 5367 days | 1% |
| nia427 | 10/10 | 5397 days | 1% |
| Mags620 | 10/10 | 5397 days | 1% |
| deanblackburn | 10/10 | 5397 days | 1% |
| Heatherorchard | 10/10 | 5428 days | 1% |
| BeetleBom | 10/10 | 5428 days | 1% |
| AnnaBain | 10/10 | 5456 days | 1% |
| geezer | 10/10 | 5456 days | 1% |
| Jen | 10/10 | 5456 days | 1% |
| busheybrew | 10/10 | 5456 days | 1% |
| painter47 | 10/10 | 5487 days | 1% |
| ganbji | 9/10 | 5487 days | 1% |
| charles | 10/10 | 5518 days | 1% |
| alanos | 9/10 | 5518 days | 1% |
| teeneelz | 10/10 | 5518 days | 1% |
| Douggie | 7/10 | 5609 days | 1% |
| celticcolleen | 10/10 | 5732 days | 1% |
| MarcyMark | 10/10 | 5762 days | 1% |
| Susiekj | 10/10 | 5793 days | 1% |
| Kirsten | 10/10 | 5821 days | 1% |
| Ravi Chand | 10/10 | 5852 days | 1% |
| Sika | 10/10 | 5852 days | 1% |
| anthony mcclaren | 9/10 | 5852 days | 1% |
| menzel | 10/10 | 5866 days | 1% |
| joannaw | 10/10 | 5868 days | 1% |
| meisterbaumann | 10/10 | 5883 days | 1% |
| Stefanie Micheler | 10/10 | 5894 days | 1% |
| Aussies | 10/10 | 5913 days | 1% |
| Jake Volle | 10/10 | 5913 days | 1% |
| Jess Woods | 10/10 | 5974 days | 1% |
| emmah | 9/10 | 6010 days | 1% |
| Dave Roebuck | 10/10 | 6036 days | 1% |
| steph_m | 9/10 | 6137 days | 1% |
| JasonL | 8/10 | 6139 days | 1% |
| Tanja Kirschmann | 10/10 | 6141 days | 1% |
| MicheyJ | 10/10 | 6143 days | 1% |
| caz | 10/10 | 6164 days | 1% |
| Cilla | 10/10 | 6169 days | 1% |
| Hannah | 10/10 | 6171 days | 1% |
| karlijn schaap | 10/10 | 6248 days | 1% |
| Murray | 10/10 | 6278 days | 1% |
| Jan Burch | 9/10 | 6390 days | 1% |
| zane mirfin | 10/10 | 6447 days | 1% |
| becky | 10/10 | 6475 days | 1% |
| dave | 9/10 | 6503 days | 1% |
| shinylight | 9/10 | 6534 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
-0.49% 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 24 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 21 | -0.43% |
| 22 | -0.45% |
| 23 | -0.47% |
| 24 | -0.49% |
| 25 | -0.51% |
| 26 | -0.53% |
| 27 | -0.55% |
| … | … |
Balancing Adjustment
0.07% 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.