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
167 Valid Reviews
The Tongariro River Rafting experience has a total of 169 reviews. There are 167 valid reviews that are included when calculating the ranking score and 2 invalid reviews 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 167 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 143 |
|
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% |
98.02% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.02% and is based on 167 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 167 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
99.57%
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 |
|---|---|---|---|
| Madonna Thomson | 10/10 | 115 days | 100% |
| Amanda Thomson | 10/10 | 390 days | 92% |
| Peter Little | 10/10 | 419 days | 91% |
| Michaela Liff | 10/10 | 664 days | 75% |
| Kusum | 10/10 | 1121 days | 34% |
| Betty Dunn | 10/10 | 1149 days | 31% |
| Ruth | 10/10 | 1729 days | 6% |
| Gary Koh | 10/10 | 1942 days | 5% |
| Jan | 10/10 | 1972 days | 5% |
| Alison B. | 10/10 | 1972 days | 5% |
| John Olsen | 10/10 | 2003 days | 5% |
| Peter | 10/10 | 2095 days | 4% |
| Ben | 10/10 | 2125 days | 4% |
| Ian | 10/10 | 2186 days | 4% |
| Gary Walker | 10/10 | 2186 days | 4% |
| Rowella Bacwaden | 10/10 | 2217 days | 4% |
| Eileen H | 10/10 | 2276 days | 4% |
| Brad | 10/10 | 2337 days | 4% |
| Jared London | 10/10 | 2368 days | 4% |
| Helen Turner | 10/10 | 2398 days | 4% |
| James | 10/10 | 2429 days | 4% |
| Isabelle_Qc | 10/10 | 2460 days | 4% |
| Laura | 10/10 | 2490 days | 4% |
| ACE Richardson | 10/10 | 2521 days | 4% |
| Thea :-) | 10/10 | 2582 days | 4% |
| William Webb | 10/10 | 2609 days | 3% |
| Katelyn Mills | 10/10 | 2610 days | 3% |
| Mrs Smith | 10/10 | 2610 days | 3% |
| Mel | 10/10 | 2610 days | 3% |
| Wayne Smith | 10/10 | 2610 days | 3% |
| Kim | 10/10 | 2640 days | 3% |
| Songyang Liu | 10/10 | 2640 days | 3% |
| Mark Haydon | 10/10 | 2974 days | 3% |
| Kathryn Sherlock | 10/10 | 3189 days | 2% |
| Cherie Kemp | 10/10 | 3189 days | 2% |
| Renee Kemp | 10/10 | 3189 days | 2% |
| Patrick McIvor | 10/10 | 3311 days | 2% |
| Lengxi | 10/10 | 3338 days | 1% |
| Uschi Pongratz | 10/10 | 3346 days | 1% |
| Jessica Ruhland | 10/10 | 3346 days | 1% |
| Paul | 7/10 | 3351 days | 1% |
| Philip Piel | 8/10 | 3351 days | 1% |
| Chiara | 8/10 | 3351 days | 1% |
| Jess | 10/10 | 3388 days | 1% |
| TashJ | 10/10 | 3402 days | 2% |
| Funny Schutt | 10/10 | 3402 days | 2% |
| Craig McCarthy | 10/10 | 3433 days | 2% |
| Tim K | 10/10 | 3433 days | 2% |
| Jack Shearer | 10/10 | 3555 days | 2% |
| Monika M | 10/10 | 3586 days | 2% |
| Ian Wilmot | 10/10 | 3646 days | 1% |
| Rodger Lamb | 10/10 | 3677 days | 1% |
| Leah Kyllo | 10/10 | 3736 days | 1% |
| Juliet Battersby | 10/10 | 3736 days | 1% |
| Chris C | 10/10 | 3797 days | 1% |
| Jessica | 10/10 | 3889 days | 1% |
| Mike Hollows | 10/10 | 3981 days | 1% |
| Monique Hollows | 10/10 | 4042 days | 1% |
| Thomas Subritzky | 10/10 | 4043 days | 1% |
| hmsteele | 10/10 | 4071 days | 1% |
| andy godfrey | 9/10 | 4102 days | 1% |
| Chris Nisbet | 8/10 | 4102 days | 1% |
| Michelle Sanders | 9/10 | 4133 days | 0% |
| phil costello | 8/10 | 4163 days | 0% |
| Robyn Orchard | 10/10 | 4194 days | 0% |
| Gisele Phillips | 9/10 | 4194 days | 0% |
| E Wall | 10/10 | 4194 days | 0% |
| Julie | 10/10 | 4224 days | 0% |
| Little | 10/10 | 4224 days | 0% |
| Grahame Keast | 10/10 | 4255 days | 0% |
| Linda Bates | 10/10 | 4255 days | 0% |
| Morgan Buckingham | 10/10 | 4255 days | 0% |
| Bertiethebus | 10/10 | 4377 days | 0% |
| Julian Roots | 10/10 | 4408 days | 1% |
| Lynette Nicolson | 10/10 | 4467 days | 1% |
| RENs Rens | 10/10 | 4467 days | 1% |
| CKDNH | 10/10 | 4528 days | 1% |
| mattus | 9/10 | 4528 days | 1% |
| Ken | 10/10 | 4528 days | 1% |
| Kathy27 | 10/10 | 4528 days | 1% |
| ladywithplants | 9/10 | 4589 days | 1% |
| princessliz | 10/10 | 4589 days | 1% |
| lariley | 9/10 | 4589 days | 1% |
| richardp | 10/10 | 4620 days | 1% |
| prasanth03 | 10/10 | 4651 days | 1% |
| EllieW | 10/10 | 4681 days | 1% |
| Terry | 10/10 | 4742 days | 1% |
| Borderland | 10/10 | 4773 days | 1% |
| jimbob | 10/10 | 4773 days | 1% |
| mopheim | 10/10 | 4773 days | 1% |
| Mats Harstedt | 9/10 | 4782 days | 1% |
| KateS | 10/10 | 4802 days | 1% |
| RubberDuck | 10/10 | 4833 days | 1% |
| Red_Hurring | 10/10 | 4833 days | 1% |
| travelpam | 10/10 | 4833 days | 1% |
| barjjake | 9/10 | 4833 days | 1% |
| cindyd | 10/10 | 4864 days | 1% |
| webstersuk | 10/10 | 4864 days | 1% |
| pezalone | 10/10 | 4864 days | 1% |
| WiseOwl | 10/10 | 4864 days | 1% |
| mausandhari | 10/10 | 4864 days | 1% |
| Pauline | 10/10 | 4894 days | 1% |
| JadesWorld | 9/10 | 4894 days | 1% |
| utstarfish | 10/10 | 4894 days | 1% |
| johnco78 | 10/10 | 4894 days | 1% |
| jrwholey | 10/10 | 4925 days | 1% |
| ShawnM | 10/10 | 4925 days | 1% |
| Tarsh | 10/10 | 4925 days | 1% |
| lindahealey | 10/10 | 4925 days | 1% |
| campbell_steven | 10/10 | 4955 days | 1% |
| markrussell | 10/10 | 4955 days | 1% |
| Bayneer | 10/10 | 4955 days | 1% |
| jaspreetsohal86 | 10/10 | 4955 days | 1% |
| kiwiholly | 10/10 | 4955 days | 1% |
| garethd1980 | 10/10 | 4955 days | 1% |
| Mulliano | 10/10 | 4955 days | 1% |
| CathyK | 10/10 | 4986 days | 1% |
| silver | 10/10 | 4986 days | 1% |
| Meyerclan | 10/10 | 5017 days | 1% |
| poetania | 10/10 | 5047 days | 1% |
| southernboy611 | 10/10 | 5047 days | 1% |
| EvilChris | 10/10 | 5078 days | 1% |
| nia427 | 10/10 | 5108 days | 1% |
| Mags620 | 10/10 | 5108 days | 1% |
| deanblackburn | 10/10 | 5108 days | 1% |
| Heatherorchard | 10/10 | 5139 days | 1% |
| BeetleBom | 10/10 | 5139 days | 1% |
| AnnaBain | 10/10 | 5167 days | 1% |
| geezer | 10/10 | 5167 days | 1% |
| Jen | 10/10 | 5167 days | 1% |
| busheybrew | 10/10 | 5167 days | 1% |
| painter47 | 10/10 | 5198 days | 1% |
| ganbji | 9/10 | 5198 days | 1% |
| charles | 10/10 | 5229 days | 1% |
| alanos | 9/10 | 5229 days | 1% |
| teeneelz | 10/10 | 5229 days | 1% |
| Douggie | 7/10 | 5320 days | 1% |
| celticcolleen | 10/10 | 5443 days | 1% |
| MarcyMark | 10/10 | 5473 days | 1% |
| Susiekj | 10/10 | 5504 days | 1% |
| Kirsten | 10/10 | 5532 days | 1% |
| Ravi Chand | 10/10 | 5563 days | 1% |
| Sika | 10/10 | 5563 days | 1% |
| anthony mcclaren | 9/10 | 5563 days | 1% |
| menzel | 10/10 | 5577 days | 1% |
| joannaw | 10/10 | 5579 days | 1% |
| meisterbaumann | 10/10 | 5594 days | 1% |
| Stefanie Micheler | 10/10 | 5605 days | 1% |
| Aussies | 10/10 | 5624 days | 1% |
| Jake Volle | 10/10 | 5624 days | 1% |
| Jess Woods | 10/10 | 5685 days | 1% |
| emmah | 9/10 | 5721 days | 1% |
| Dave Roebuck | 10/10 | 5747 days | 1% |
| steph_m | 9/10 | 5847 days | 1% |
| JasonL | 8/10 | 5850 days | 1% |
| Tanja Kirschmann | 10/10 | 5851 days | 1% |
| MicheyJ | 10/10 | 5853 days | 1% |
| caz | 10/10 | 5874 days | 1% |
| Cilla | 10/10 | 5879 days | 1% |
| Hannah | 10/10 | 5881 days | 1% |
| karlijn schaap | 10/10 | 5958 days | 1% |
| Murray | 10/10 | 5988 days | 1% |
| Jan Burch | 9/10 | 6101 days | 1% |
| zane mirfin | 10/10 | 6157 days | 1% |
| becky | 10/10 | 6185 days | 1% |
| dave | 9/10 | 6213 days | 1% |
| shinylight | 9/10 | 6245 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
-2.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 59 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 112 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 109 | -2.09% |
| 110 | -2.11% |
| 111 | -2.13% |
| 112 | -2.15% |
| 113 | -2.17% |
| 114 | -2.19% |
| 115 | -2.21% |
| … | … |
Balancing Adjustment
0.22% 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
98%
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.