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
167 Valid Reviews
The Tongariro River Rafting experience has a total of 168 reviews. There are 167 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 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 | 102 days | 100% |
| Amanda Thomson | 10/10 | 377 days | 92% |
| Peter Little | 10/10 | 406 days | 91% |
| Michaela Liff | 10/10 | 650 days | 76% |
| Kusum | 10/10 | 1108 days | 35% |
| Betty Dunn | 10/10 | 1136 days | 32% |
| Ruth | 10/10 | 1715 days | 6% |
| Gary Koh | 10/10 | 1929 days | 5% |
| Jan | 10/10 | 1959 days | 5% |
| Alison B. | 10/10 | 1959 days | 5% |
| John Olsen | 10/10 | 1990 days | 5% |
| Peter | 10/10 | 2081 days | 4% |
| Ben | 10/10 | 2111 days | 4% |
| Ian | 10/10 | 2173 days | 4% |
| Gary Walker | 10/10 | 2173 days | 4% |
| Rowella Bacwaden | 10/10 | 2204 days | 4% |
| Eileen H | 10/10 | 2263 days | 4% |
| Brad | 10/10 | 2324 days | 4% |
| Jared London | 10/10 | 2355 days | 4% |
| Helen Turner | 10/10 | 2384 days | 4% |
| James | 10/10 | 2415 days | 4% |
| Isabelle_Qc | 10/10 | 2446 days | 4% |
| Laura | 10/10 | 2476 days | 4% |
| ACE Richardson | 10/10 | 2507 days | 4% |
| Thea :-) | 10/10 | 2569 days | 4% |
| William Webb | 10/10 | 2596 days | 3% |
| Katelyn Mills | 10/10 | 2597 days | 3% |
| Mrs Smith | 10/10 | 2597 days | 3% |
| Mel | 10/10 | 2597 days | 3% |
| Wayne Smith | 10/10 | 2597 days | 3% |
| Kim | 10/10 | 2627 days | 3% |
| Songyang Liu | 10/10 | 2627 days | 3% |
| Mark Haydon | 10/10 | 2961 days | 3% |
| Kathryn Sherlock | 10/10 | 3176 days | 2% |
| Cherie Kemp | 10/10 | 3176 days | 2% |
| Renee Kemp | 10/10 | 3176 days | 2% |
| Patrick McIvor | 10/10 | 3298 days | 2% |
| Lengxi | 10/10 | 3325 days | 1% |
| Uschi Pongratz | 10/10 | 3333 days | 1% |
| Jessica Ruhland | 10/10 | 3333 days | 1% |
| Paul | 7/10 | 3338 days | 1% |
| Philip Piel | 8/10 | 3338 days | 1% |
| Chiara | 8/10 | 3338 days | 1% |
| Jess | 10/10 | 3375 days | 1% |
| TashJ | 10/10 | 3389 days | 2% |
| Funny Schutt | 10/10 | 3389 days | 2% |
| Craig McCarthy | 10/10 | 3420 days | 2% |
| Tim K | 10/10 | 3420 days | 2% |
| Jack Shearer | 10/10 | 3542 days | 2% |
| Monika M | 10/10 | 3572 days | 2% |
| Ian Wilmot | 10/10 | 3633 days | 1% |
| Rodger Lamb | 10/10 | 3664 days | 1% |
| Leah Kyllo | 10/10 | 3723 days | 1% |
| Juliet Battersby | 10/10 | 3723 days | 1% |
| Chris C | 10/10 | 3784 days | 1% |
| Jessica | 10/10 | 3876 days | 1% |
| Mike Hollows | 10/10 | 3968 days | 1% |
| Monique Hollows | 10/10 | 4029 days | 1% |
| Thomas Subritzky | 10/10 | 4030 days | 1% |
| hmsteele | 10/10 | 4058 days | 1% |
| andy godfrey | 9/10 | 4089 days | 1% |
| Chris Nisbet | 8/10 | 4089 days | 1% |
| Michelle Sanders | 9/10 | 4120 days | 0% |
| phil costello | 8/10 | 4150 days | 0% |
| Robyn Orchard | 10/10 | 4181 days | 0% |
| Gisele Phillips | 9/10 | 4181 days | 0% |
| E Wall | 10/10 | 4181 days | 0% |
| Julie | 10/10 | 4210 days | 0% |
| Little | 10/10 | 4210 days | 0% |
| Grahame Keast | 10/10 | 4241 days | 0% |
| Linda Bates | 10/10 | 4241 days | 0% |
| Morgan Buckingham | 10/10 | 4241 days | 0% |
| Bertiethebus | 10/10 | 4364 days | 0% |
| Julian Roots | 10/10 | 4395 days | 1% |
| Lynette Nicolson | 10/10 | 4454 days | 1% |
| RENs Rens | 10/10 | 4454 days | 1% |
| CKDNH | 10/10 | 4515 days | 1% |
| mattus | 9/10 | 4515 days | 1% |
| Ken | 10/10 | 4515 days | 1% |
| Kathy27 | 10/10 | 4515 days | 1% |
| ladywithplants | 9/10 | 4575 days | 1% |
| princessliz | 10/10 | 4575 days | 1% |
| lariley | 9/10 | 4575 days | 1% |
| richardp | 10/10 | 4606 days | 1% |
| prasanth03 | 10/10 | 4637 days | 1% |
| EllieW | 10/10 | 4667 days | 1% |
| Terry | 10/10 | 4729 days | 1% |
| Borderland | 10/10 | 4760 days | 1% |
| jimbob | 10/10 | 4760 days | 1% |
| mopheim | 10/10 | 4760 days | 1% |
| Mats Harstedt | 9/10 | 4769 days | 1% |
| KateS | 10/10 | 4789 days | 1% |
| RubberDuck | 10/10 | 4820 days | 1% |
| Red_Hurring | 10/10 | 4820 days | 1% |
| travelpam | 10/10 | 4820 days | 1% |
| barjjake | 9/10 | 4820 days | 1% |
| cindyd | 10/10 | 4851 days | 1% |
| webstersuk | 10/10 | 4851 days | 1% |
| pezalone | 10/10 | 4851 days | 1% |
| WiseOwl | 10/10 | 4851 days | 1% |
| mausandhari | 10/10 | 4851 days | 1% |
| Pauline | 10/10 | 4881 days | 1% |
| JadesWorld | 9/10 | 4881 days | 1% |
| utstarfish | 10/10 | 4881 days | 1% |
| johnco78 | 10/10 | 4881 days | 1% |
| jrwholey | 10/10 | 4912 days | 1% |
| ShawnM | 10/10 | 4912 days | 1% |
| Tarsh | 10/10 | 4912 days | 1% |
| lindahealey | 10/10 | 4912 days | 1% |
| campbell_steven | 10/10 | 4941 days | 1% |
| markrussell | 10/10 | 4941 days | 1% |
| Bayneer | 10/10 | 4941 days | 1% |
| jaspreetsohal86 | 10/10 | 4941 days | 1% |
| kiwiholly | 10/10 | 4941 days | 1% |
| garethd1980 | 10/10 | 4941 days | 1% |
| Mulliano | 10/10 | 4941 days | 1% |
| CathyK | 10/10 | 4972 days | 1% |
| silver | 10/10 | 4972 days | 1% |
| Meyerclan | 10/10 | 5003 days | 1% |
| poetania | 10/10 | 5033 days | 1% |
| southernboy611 | 10/10 | 5033 days | 1% |
| EvilChris | 10/10 | 5064 days | 1% |
| nia427 | 10/10 | 5095 days | 1% |
| Mags620 | 10/10 | 5095 days | 1% |
| deanblackburn | 10/10 | 5095 days | 1% |
| Heatherorchard | 10/10 | 5126 days | 1% |
| BeetleBom | 10/10 | 5126 days | 1% |
| AnnaBain | 10/10 | 5154 days | 1% |
| geezer | 10/10 | 5154 days | 1% |
| Jen | 10/10 | 5154 days | 1% |
| busheybrew | 10/10 | 5154 days | 1% |
| painter47 | 10/10 | 5185 days | 1% |
| ganbji | 9/10 | 5185 days | 1% |
| charles | 10/10 | 5216 days | 1% |
| alanos | 9/10 | 5216 days | 1% |
| teeneelz | 10/10 | 5216 days | 1% |
| Douggie | 7/10 | 5306 days | 1% |
| celticcolleen | 10/10 | 5429 days | 1% |
| MarcyMark | 10/10 | 5460 days | 1% |
| Susiekj | 10/10 | 5491 days | 1% |
| Kirsten | 10/10 | 5519 days | 1% |
| Ravi Chand | 10/10 | 5550 days | 1% |
| Sika | 10/10 | 5550 days | 1% |
| anthony mcclaren | 9/10 | 5550 days | 1% |
| menzel | 10/10 | 5564 days | 1% |
| joannaw | 10/10 | 5566 days | 1% |
| meisterbaumann | 10/10 | 5581 days | 1% |
| Stefanie Micheler | 10/10 | 5592 days | 1% |
| Aussies | 10/10 | 5611 days | 1% |
| Jake Volle | 10/10 | 5611 days | 1% |
| Jess Woods | 10/10 | 5671 days | 1% |
| emmah | 9/10 | 5707 days | 1% |
| Dave Roebuck | 10/10 | 5733 days | 1% |
| steph_m | 9/10 | 5834 days | 1% |
| JasonL | 8/10 | 5837 days | 1% |
| Tanja Kirschmann | 10/10 | 5838 days | 1% |
| MicheyJ | 10/10 | 5840 days | 1% |
| caz | 10/10 | 5861 days | 1% |
| Cilla | 10/10 | 5866 days | 1% |
| Hannah | 10/10 | 5868 days | 1% |
| karlijn schaap | 10/10 | 5945 days | 1% |
| Murray | 10/10 | 5975 days | 1% |
| Jan Burch | 9/10 | 6087 days | 1% |
| zane mirfin | 10/10 | 6144 days | 1% |
| becky | 10/10 | 6172 days | 1% |
| dave | 9/10 | 6200 days | 1% |
| shinylight | 9/10 | 6232 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
-1.99% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 99 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 96 | -1.93% |
| 97 | -1.95% |
| 98 | -1.97% |
| 99 | -1.99% |
| 100 | -2.01% |
| 101 | -2.03% |
| 102 | -2.05% |
| … | … |
Balancing Adjustment
0.20% 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.