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
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 | 69 days | 100% |
| V Buys | 10/10 | 313 days | 95% |
| Cody | 10/10 | 344 days | 94% |
| Madonna Thomson | 10/10 | 434 days | 89% |
| Amanda Thomson | 10/10 | 709 days | 72% |
| Peter Little | 10/10 | 738 days | 69% |
| Michaela Liff | 10/10 | 983 days | 46% |
| Kusum | 10/10 | 1440 days | 13% |
| Betty Dunn | 10/10 | 1468 days | 12% |
| Ruth | 10/10 | 2048 days | 5% |
| Gary Koh | 10/10 | 2261 days | 4% |
| Jan | 10/10 | 2291 days | 4% |
| Alison B. | 10/10 | 2291 days | 4% |
| John Olsen | 10/10 | 2322 days | 4% |
| Peter | 10/10 | 2414 days | 4% |
| Ben | 10/10 | 2444 days | 4% |
| Ian | 10/10 | 2505 days | 4% |
| Gary Walker | 10/10 | 2505 days | 4% |
| Rowella Bacwaden | 10/10 | 2536 days | 4% |
| Eileen H | 10/10 | 2595 days | 3% |
| Brad | 10/10 | 2656 days | 3% |
| Jared London | 10/10 | 2687 days | 3% |
| Helen Turner | 10/10 | 2717 days | 3% |
| James | 10/10 | 2748 days | 3% |
| Isabelle_Qc | 10/10 | 2779 days | 3% |
| Laura | 10/10 | 2809 days | 3% |
| ACE Richardson | 10/10 | 2840 days | 3% |
| Thea :-) | 10/10 | 2901 days | 3% |
| William Webb | 10/10 | 2928 days | 3% |
| Katelyn Mills | 10/10 | 2929 days | 3% |
| Mrs Smith | 10/10 | 2929 days | 3% |
| Mel | 10/10 | 2929 days | 3% |
| Wayne Smith | 10/10 | 2929 days | 3% |
| Kim | 10/10 | 2959 days | 3% |
| Songyang Liu | 10/10 | 2959 days | 3% |
| Mark Haydon | 10/10 | 3293 days | 2% |
| Kathryn Sherlock | 10/10 | 3508 days | 2% |
| Cherie Kemp | 10/10 | 3508 days | 2% |
| Renee Kemp | 10/10 | 3508 days | 2% |
| Patrick McIvor | 10/10 | 3630 days | 1% |
| Lengxi | 10/10 | 3657 days | 1% |
| Uschi Pongratz | 10/10 | 3665 days | 1% |
| Jessica Ruhland | 10/10 | 3665 days | 1% |
| Paul | 7/10 | 3670 days | 1% |
| Philip Piel | 8/10 | 3670 days | 1% |
| Chiara | 8/10 | 3670 days | 1% |
| Jess | 10/10 | 3707 days | 1% |
| TashJ | 10/10 | 3721 days | 1% |
| Funny Schutt | 10/10 | 3721 days | 1% |
| Craig McCarthy | 10/10 | 3752 days | 1% |
| Tim K | 10/10 | 3752 days | 1% |
| Jack Shearer | 10/10 | 3874 days | 1% |
| Monika M | 10/10 | 3905 days | 1% |
| Ian Wilmot | 10/10 | 3965 days | 1% |
| Rodger Lamb | 10/10 | 3996 days | 1% |
| Leah Kyllo | 10/10 | 4055 days | 1% |
| Juliet Battersby | 10/10 | 4055 days | 1% |
| Chris C | 10/10 | 4116 days | 0% |
| Jessica | 10/10 | 4208 days | 0% |
| Mike Hollows | 10/10 | 4300 days | 0% |
| Monique Hollows | 10/10 | 4361 days | 0% |
| Thomas Subritzky | 10/10 | 4362 days | 0% |
| hmsteele | 10/10 | 4390 days | 1% |
| andy godfrey | 9/10 | 4421 days | 1% |
| Chris Nisbet | 8/10 | 4421 days | 1% |
| Michelle Sanders | 9/10 | 4452 days | 1% |
| phil costello | 8/10 | 4482 days | 1% |
| Robyn Orchard | 10/10 | 4513 days | 1% |
| Gisele Phillips | 9/10 | 4513 days | 1% |
| E Wall | 10/10 | 4513 days | 1% |
| Julie | 10/10 | 4543 days | 1% |
| Little | 10/10 | 4543 days | 1% |
| Grahame Keast | 10/10 | 4574 days | 1% |
| Linda Bates | 10/10 | 4574 days | 1% |
| Morgan Buckingham | 10/10 | 4574 days | 1% |
| Bertiethebus | 10/10 | 4696 days | 1% |
| Julian Roots | 10/10 | 4727 days | 1% |
| Lynette Nicolson | 10/10 | 4786 days | 1% |
| RENs Rens | 10/10 | 4786 days | 1% |
| CKDNH | 10/10 | 4847 days | 1% |
| mattus | 9/10 | 4847 days | 1% |
| Ken | 10/10 | 4847 days | 1% |
| Kathy27 | 10/10 | 4847 days | 1% |
| ladywithplants | 9/10 | 4908 days | 1% |
| princessliz | 10/10 | 4908 days | 1% |
| lariley | 9/10 | 4908 days | 1% |
| richardp | 10/10 | 4939 days | 1% |
| prasanth03 | 10/10 | 4970 days | 1% |
| EllieW | 10/10 | 5000 days | 1% |
| Terry | 10/10 | 5061 days | 1% |
| Borderland | 10/10 | 5092 days | 1% |
| jimbob | 10/10 | 5092 days | 1% |
| mopheim | 10/10 | 5092 days | 1% |
| Mats Harstedt | 9/10 | 5101 days | 1% |
| KateS | 10/10 | 5121 days | 1% |
| RubberDuck | 10/10 | 5152 days | 1% |
| Red_Hurring | 10/10 | 5152 days | 1% |
| travelpam | 10/10 | 5152 days | 1% |
| barjjake | 9/10 | 5152 days | 1% |
| cindyd | 10/10 | 5183 days | 1% |
| webstersuk | 10/10 | 5183 days | 1% |
| pezalone | 10/10 | 5183 days | 1% |
| WiseOwl | 10/10 | 5183 days | 1% |
| mausandhari | 10/10 | 5183 days | 1% |
| Pauline | 10/10 | 5213 days | 1% |
| JadesWorld | 9/10 | 5213 days | 1% |
| utstarfish | 10/10 | 5213 days | 1% |
| johnco78 | 10/10 | 5213 days | 1% |
| jrwholey | 10/10 | 5244 days | 1% |
| ShawnM | 10/10 | 5244 days | 1% |
| Tarsh | 10/10 | 5244 days | 1% |
| lindahealey | 10/10 | 5244 days | 1% |
| campbell_steven | 10/10 | 5274 days | 1% |
| markrussell | 10/10 | 5274 days | 1% |
| Bayneer | 10/10 | 5274 days | 1% |
| jaspreetsohal86 | 10/10 | 5274 days | 1% |
| kiwiholly | 10/10 | 5274 days | 1% |
| garethd1980 | 10/10 | 5274 days | 1% |
| Mulliano | 10/10 | 5274 days | 1% |
| CathyK | 10/10 | 5305 days | 1% |
| silver | 10/10 | 5305 days | 1% |
| Meyerclan | 10/10 | 5336 days | 1% |
| poetania | 10/10 | 5366 days | 1% |
| southernboy611 | 10/10 | 5366 days | 1% |
| EvilChris | 10/10 | 5397 days | 1% |
| nia427 | 10/10 | 5427 days | 1% |
| Mags620 | 10/10 | 5427 days | 1% |
| deanblackburn | 10/10 | 5427 days | 1% |
| Heatherorchard | 10/10 | 5458 days | 1% |
| BeetleBom | 10/10 | 5458 days | 1% |
| AnnaBain | 10/10 | 5486 days | 1% |
| geezer | 10/10 | 5486 days | 1% |
| Jen | 10/10 | 5486 days | 1% |
| busheybrew | 10/10 | 5486 days | 1% |
| painter47 | 10/10 | 5517 days | 1% |
| ganbji | 9/10 | 5517 days | 1% |
| charles | 10/10 | 5548 days | 1% |
| alanos | 9/10 | 5548 days | 1% |
| teeneelz | 10/10 | 5548 days | 1% |
| Douggie | 7/10 | 5639 days | 1% |
| celticcolleen | 10/10 | 5762 days | 1% |
| MarcyMark | 10/10 | 5792 days | 1% |
| Susiekj | 10/10 | 5823 days | 1% |
| Kirsten | 10/10 | 5851 days | 1% |
| Ravi Chand | 10/10 | 5882 days | 1% |
| Sika | 10/10 | 5882 days | 1% |
| anthony mcclaren | 9/10 | 5882 days | 1% |
| menzel | 10/10 | 5896 days | 1% |
| joannaw | 10/10 | 5898 days | 1% |
| meisterbaumann | 10/10 | 5913 days | 1% |
| Stefanie Micheler | 10/10 | 5924 days | 1% |
| Aussies | 10/10 | 5943 days | 1% |
| Jake Volle | 10/10 | 5943 days | 1% |
| Jess Woods | 10/10 | 6004 days | 1% |
| emmah | 9/10 | 6040 days | 1% |
| Dave Roebuck | 10/10 | 6066 days | 1% |
| steph_m | 9/10 | 6166 days | 1% |
| JasonL | 8/10 | 6169 days | 1% |
| Tanja Kirschmann | 10/10 | 6171 days | 1% |
| MicheyJ | 10/10 | 6172 days | 1% |
| caz | 10/10 | 6193 days | 1% |
| Cilla | 10/10 | 6198 days | 1% |
| Hannah | 10/10 | 6201 days | 1% |
| karlijn schaap | 10/10 | 6277 days | 1% |
| Murray | 10/10 | 6308 days | 1% |
| Jan Burch | 9/10 | 6420 days | 1% |
| zane mirfin | 10/10 | 6476 days | 1% |
| becky | 10/10 | 6504 days | 1% |
| dave | 9/10 | 6532 days | 1% |
| shinylight | 9/10 | 6564 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
-1.10% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 51 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 53 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 50 | -1.04% |
| 51 | -1.06% |
| 52 | -1.08% |
| 53 | -1.10% |
| 54 | -1.12% |
| 55 | -1.14% |
| 56 | -1.16% |
| … | … |
Balancing Adjustment
0.12% 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.