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
171 Valid Reviews
The Tongariro River Rafting experience has a total of 172 reviews. There are 171 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 171 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 147 |
|
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% |
98.07% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.07% and is based on 171 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 171 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
99.65%
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 |
|---|---|---|---|
| Vanessa Shankaran Tasker | 10/10 | 179 days | 100% |
| Lynda B | 10/10 | 241 days | 98% |
| V Buys | 10/10 | 485 days | 88% |
| Cody | 10/10 | 516 days | 86% |
| Madonna Thomson | 10/10 | 606 days | 80% |
| Amanda Thomson | 10/10 | 881 days | 57% |
| Peter Little | 10/10 | 910 days | 54% |
| Michaela Liff | 10/10 | 1155 days | 31% |
| Kusum | 10/10 | 1612 days | 8% |
| Betty Dunn | 10/10 | 1640 days | 7% |
| Ruth | 10/10 | 2220 days | 4% |
| Gary Koh | 10/10 | 2433 days | 4% |
| Jan | 10/10 | 2463 days | 4% |
| Alison B. | 10/10 | 2463 days | 4% |
| John Olsen | 10/10 | 2494 days | 4% |
| Peter | 10/10 | 2586 days | 3% |
| Ben | 10/10 | 2616 days | 3% |
| Ian | 10/10 | 2677 days | 3% |
| Gary Walker | 10/10 | 2677 days | 3% |
| Rowella Bacwaden | 10/10 | 2708 days | 3% |
| Eileen H | 10/10 | 2767 days | 3% |
| Brad | 10/10 | 2828 days | 3% |
| Jared London | 10/10 | 2859 days | 3% |
| Helen Turner | 10/10 | 2889 days | 3% |
| James | 10/10 | 2920 days | 3% |
| Isabelle_Qc | 10/10 | 2951 days | 3% |
| Laura | 10/10 | 2981 days | 3% |
| ACE Richardson | 10/10 | 3012 days | 3% |
| Thea :-) | 10/10 | 3073 days | 2% |
| William Webb | 10/10 | 3100 days | 2% |
| Katelyn Mills | 10/10 | 3101 days | 2% |
| Mrs Smith | 10/10 | 3101 days | 2% |
| Mel | 10/10 | 3101 days | 2% |
| Wayne Smith | 10/10 | 3101 days | 2% |
| Kim | 10/10 | 3131 days | 2% |
| Songyang Liu | 10/10 | 3131 days | 2% |
| Mark Haydon | 10/10 | 3465 days | 2% |
| Kathryn Sherlock | 10/10 | 3680 days | 1% |
| Cherie Kemp | 10/10 | 3680 days | 1% |
| Renee Kemp | 10/10 | 3680 days | 1% |
| Patrick McIvor | 10/10 | 3802 days | 1% |
| Lengxi | 10/10 | 3829 days | 0% |
| Uschi Pongratz | 10/10 | 3837 days | 0% |
| Jessica Ruhland | 10/10 | 3837 days | 0% |
| Paul | 7/10 | 3842 days | 0% |
| Philip Piel | 8/10 | 3842 days | 0% |
| Chiara | 8/10 | 3842 days | 0% |
| Jess | 10/10 | 3879 days | 0% |
| TashJ | 10/10 | 3893 days | 1% |
| Funny Schutt | 10/10 | 3893 days | 1% |
| Craig McCarthy | 10/10 | 3924 days | 1% |
| Tim K | 10/10 | 3924 days | 1% |
| Jack Shearer | 10/10 | 4046 days | 0% |
| Monika M | 10/10 | 4077 days | 0% |
| Ian Wilmot | 10/10 | 4137 days | 0% |
| Rodger Lamb | 10/10 | 4168 days | 0% |
| Leah Kyllo | 10/10 | 4227 days | 0% |
| Juliet Battersby | 10/10 | 4227 days | 0% |
| Chris C | 10/10 | 4288 days | 0% |
| Jessica | 10/10 | 4380 days | 1% |
| Mike Hollows | 10/10 | 4472 days | 1% |
| Monique Hollows | 10/10 | 4533 days | 1% |
| Thomas Subritzky | 10/10 | 4534 days | 1% |
| hmsteele | 10/10 | 4562 days | 1% |
| andy godfrey | 9/10 | 4593 days | 1% |
| Chris Nisbet | 8/10 | 4593 days | 1% |
| Michelle Sanders | 9/10 | 4624 days | 1% |
| phil costello | 8/10 | 4654 days | 1% |
| Robyn Orchard | 10/10 | 4685 days | 1% |
| Gisele Phillips | 9/10 | 4685 days | 1% |
| E Wall | 10/10 | 4685 days | 1% |
| Julie | 10/10 | 4715 days | 1% |
| Little | 10/10 | 4715 days | 1% |
| Grahame Keast | 10/10 | 4746 days | 1% |
| Linda Bates | 10/10 | 4746 days | 1% |
| Morgan Buckingham | 10/10 | 4746 days | 1% |
| Bertiethebus | 10/10 | 4868 days | 1% |
| Julian Roots | 10/10 | 4899 days | 1% |
| Lynette Nicolson | 10/10 | 4958 days | 1% |
| RENs Rens | 10/10 | 4958 days | 1% |
| CKDNH | 10/10 | 5019 days | 1% |
| mattus | 9/10 | 5019 days | 1% |
| Ken | 10/10 | 5019 days | 1% |
| Kathy27 | 10/10 | 5019 days | 1% |
| ladywithplants | 9/10 | 5080 days | 1% |
| princessliz | 10/10 | 5080 days | 1% |
| lariley | 9/10 | 5080 days | 1% |
| richardp | 10/10 | 5111 days | 1% |
| prasanth03 | 10/10 | 5142 days | 1% |
| EllieW | 10/10 | 5172 days | 1% |
| Terry | 10/10 | 5233 days | 1% |
| Borderland | 10/10 | 5264 days | 1% |
| jimbob | 10/10 | 5264 days | 1% |
| mopheim | 10/10 | 5264 days | 1% |
| Mats Harstedt | 9/10 | 5273 days | 0% |
| KateS | 10/10 | 5293 days | 1% |
| RubberDuck | 10/10 | 5324 days | 1% |
| Red_Hurring | 10/10 | 5324 days | 1% |
| travelpam | 10/10 | 5324 days | 1% |
| barjjake | 9/10 | 5324 days | 1% |
| cindyd | 10/10 | 5355 days | 1% |
| webstersuk | 10/10 | 5355 days | 1% |
| pezalone | 10/10 | 5355 days | 1% |
| WiseOwl | 10/10 | 5355 days | 1% |
| mausandhari | 10/10 | 5355 days | 1% |
| Pauline | 10/10 | 5385 days | 1% |
| JadesWorld | 9/10 | 5385 days | 1% |
| utstarfish | 10/10 | 5385 days | 1% |
| johnco78 | 10/10 | 5385 days | 1% |
| jrwholey | 10/10 | 5416 days | 1% |
| ShawnM | 10/10 | 5416 days | 1% |
| Tarsh | 10/10 | 5416 days | 1% |
| lindahealey | 10/10 | 5416 days | 1% |
| campbell_steven | 10/10 | 5446 days | 1% |
| markrussell | 10/10 | 5446 days | 1% |
| Bayneer | 10/10 | 5446 days | 1% |
| jaspreetsohal86 | 10/10 | 5446 days | 1% |
| kiwiholly | 10/10 | 5446 days | 1% |
| garethd1980 | 10/10 | 5446 days | 1% |
| Mulliano | 10/10 | 5446 days | 1% |
| CathyK | 10/10 | 5477 days | 1% |
| silver | 10/10 | 5477 days | 1% |
| Meyerclan | 10/10 | 5508 days | 1% |
| poetania | 10/10 | 5538 days | 1% |
| southernboy611 | 10/10 | 5538 days | 1% |
| EvilChris | 10/10 | 5569 days | 1% |
| nia427 | 10/10 | 5599 days | 1% |
| Mags620 | 10/10 | 5599 days | 1% |
| deanblackburn | 10/10 | 5599 days | 1% |
| Heatherorchard | 10/10 | 5630 days | 1% |
| BeetleBom | 10/10 | 5630 days | 1% |
| AnnaBain | 10/10 | 5658 days | 1% |
| geezer | 10/10 | 5658 days | 1% |
| Jen | 10/10 | 5658 days | 1% |
| busheybrew | 10/10 | 5658 days | 1% |
| painter47 | 10/10 | 5689 days | 1% |
| ganbji | 9/10 | 5689 days | 1% |
| charles | 10/10 | 5720 days | 1% |
| alanos | 9/10 | 5720 days | 1% |
| teeneelz | 10/10 | 5720 days | 1% |
| Douggie | 7/10 | 5811 days | 1% |
| celticcolleen | 10/10 | 5934 days | 1% |
| MarcyMark | 10/10 | 5964 days | 1% |
| Susiekj | 10/10 | 5995 days | 1% |
| Kirsten | 10/10 | 6023 days | 1% |
| Ravi Chand | 10/10 | 6054 days | 1% |
| Sika | 10/10 | 6054 days | 1% |
| anthony mcclaren | 9/10 | 6054 days | 1% |
| menzel | 10/10 | 6068 days | 0% |
| joannaw | 10/10 | 6070 days | 0% |
| meisterbaumann | 10/10 | 6085 days | 1% |
| Stefanie Micheler | 10/10 | 6096 days | 0% |
| Aussies | 10/10 | 6115 days | 1% |
| Jake Volle | 10/10 | 6115 days | 1% |
| Jess Woods | 10/10 | 6176 days | 1% |
| emmah | 9/10 | 6212 days | 0% |
| Dave Roebuck | 10/10 | 6238 days | 1% |
| steph_m | 9/10 | 6338 days | 1% |
| JasonL | 8/10 | 6341 days | 0% |
| Tanja Kirschmann | 10/10 | 6342 days | 1% |
| MicheyJ | 10/10 | 6344 days | 1% |
| caz | 10/10 | 6365 days | 1% |
| Cilla | 10/10 | 6370 days | 0% |
| Hannah | 10/10 | 6372 days | 1% |
| karlijn schaap | 10/10 | 6449 days | 1% |
| Murray | 10/10 | 6479 days | 1% |
| Jan Burch | 9/10 | 6592 days | 1% |
| zane mirfin | 10/10 | 6648 days | 1% |
| becky | 10/10 | 6676 days | 1% |
| dave | 9/10 | 6704 days | 1% |
| shinylight | 9/10 | 6736 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
-1.63% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 123 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 156 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 153 | -1.59% |
| 154 | -1.61% |
| 155 | -1.62% |
| 156 | -1.63% |
| 157 | -1.64% |
| 158 | -1.65% |
| 159 | -1.66% |
| … | … |
Balancing Adjustment
0.16% 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.