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
169 Valid Reviews
The Tongariro River Rafting experience has a total of 170 reviews. There are 169 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 169 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 145 |
|
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% |
98.05% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.05% and is based on 169 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 169 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
99.63%
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 |
|---|---|---|---|
| V Buys | 10/10 | 257 days | 100% |
| Cody | 10/10 | 288 days | 99% |
| Madonna Thomson | 10/10 | 378 days | 95% |
| Amanda Thomson | 10/10 | 653 days | 79% |
| Peter Little | 10/10 | 682 days | 76% |
| Michaela Liff | 10/10 | 927 days | 53% |
| Kusum | 10/10 | 1384 days | 17% |
| Betty Dunn | 10/10 | 1412 days | 15% |
| Ruth | 10/10 | 1992 days | 5% |
| Gary Koh | 10/10 | 2205 days | 4% |
| Jan | 10/10 | 2235 days | 4% |
| Alison B. | 10/10 | 2235 days | 4% |
| John Olsen | 10/10 | 2266 days | 4% |
| Peter | 10/10 | 2358 days | 4% |
| Ben | 10/10 | 2388 days | 4% |
| Ian | 10/10 | 2449 days | 4% |
| Gary Walker | 10/10 | 2449 days | 4% |
| Rowella Bacwaden | 10/10 | 2480 days | 4% |
| Eileen H | 10/10 | 2539 days | 4% |
| Brad | 10/10 | 2600 days | 4% |
| Jared London | 10/10 | 2631 days | 4% |
| Helen Turner | 10/10 | 2661 days | 3% |
| James | 10/10 | 2692 days | 3% |
| Isabelle_Qc | 10/10 | 2723 days | 3% |
| Laura | 10/10 | 2753 days | 3% |
| ACE Richardson | 10/10 | 2784 days | 3% |
| Thea :-) | 10/10 | 2845 days | 3% |
| William Webb | 10/10 | 2873 days | 3% |
| Katelyn Mills | 10/10 | 2873 days | 3% |
| Mrs Smith | 10/10 | 2873 days | 3% |
| Mel | 10/10 | 2873 days | 3% |
| Wayne Smith | 10/10 | 2873 days | 3% |
| Kim | 10/10 | 2904 days | 3% |
| Songyang Liu | 10/10 | 2904 days | 3% |
| Mark Haydon | 10/10 | 3238 days | 2% |
| Kathryn Sherlock | 10/10 | 3453 days | 2% |
| Cherie Kemp | 10/10 | 3453 days | 2% |
| Renee Kemp | 10/10 | 3453 days | 2% |
| Patrick McIvor | 10/10 | 3575 days | 2% |
| Lengxi | 10/10 | 3601 days | 1% |
| Uschi Pongratz | 10/10 | 3609 days | 1% |
| Jessica Ruhland | 10/10 | 3609 days | 1% |
| Paul | 7/10 | 3614 days | 1% |
| Philip Piel | 8/10 | 3614 days | 1% |
| Chiara | 8/10 | 3614 days | 1% |
| Jess | 10/10 | 3651 days | 1% |
| TashJ | 10/10 | 3666 days | 1% |
| Funny Schutt | 10/10 | 3666 days | 1% |
| Craig McCarthy | 10/10 | 3696 days | 1% |
| Tim K | 10/10 | 3696 days | 1% |
| Jack Shearer | 10/10 | 3819 days | 1% |
| Monika M | 10/10 | 3849 days | 1% |
| Ian Wilmot | 10/10 | 3910 days | 1% |
| Rodger Lamb | 10/10 | 3941 days | 1% |
| Leah Kyllo | 10/10 | 4000 days | 1% |
| Juliet Battersby | 10/10 | 4000 days | 1% |
| Chris C | 10/10 | 4061 days | 1% |
| Jessica | 10/10 | 4153 days | 0% |
| Mike Hollows | 10/10 | 4245 days | 0% |
| Monique Hollows | 10/10 | 4306 days | 0% |
| Thomas Subritzky | 10/10 | 4306 days | 0% |
| hmsteele | 10/10 | 4334 days | 0% |
| andy godfrey | 9/10 | 4365 days | 0% |
| Chris Nisbet | 8/10 | 4365 days | 0% |
| Michelle Sanders | 9/10 | 4396 days | 1% |
| phil costello | 8/10 | 4426 days | 1% |
| Robyn Orchard | 10/10 | 4457 days | 1% |
| Gisele Phillips | 9/10 | 4457 days | 1% |
| E Wall | 10/10 | 4457 days | 1% |
| Julie | 10/10 | 4487 days | 1% |
| Little | 10/10 | 4487 days | 1% |
| Grahame Keast | 10/10 | 4518 days | 1% |
| Linda Bates | 10/10 | 4518 days | 1% |
| Morgan Buckingham | 10/10 | 4518 days | 1% |
| Bertiethebus | 10/10 | 4640 days | 1% |
| Julian Roots | 10/10 | 4671 days | 1% |
| Lynette Nicolson | 10/10 | 4730 days | 1% |
| RENs Rens | 10/10 | 4730 days | 1% |
| CKDNH | 10/10 | 4791 days | 1% |
| mattus | 9/10 | 4791 days | 1% |
| Ken | 10/10 | 4791 days | 1% |
| Kathy27 | 10/10 | 4791 days | 1% |
| ladywithplants | 9/10 | 4852 days | 1% |
| princessliz | 10/10 | 4852 days | 1% |
| lariley | 9/10 | 4852 days | 1% |
| richardp | 10/10 | 4883 days | 1% |
| prasanth03 | 10/10 | 4914 days | 1% |
| EllieW | 10/10 | 4944 days | 1% |
| Terry | 10/10 | 5005 days | 1% |
| Borderland | 10/10 | 5036 days | 1% |
| jimbob | 10/10 | 5036 days | 1% |
| mopheim | 10/10 | 5036 days | 1% |
| Mats Harstedt | 9/10 | 5045 days | 1% |
| KateS | 10/10 | 5065 days | 1% |
| RubberDuck | 10/10 | 5096 days | 1% |
| Red_Hurring | 10/10 | 5096 days | 1% |
| travelpam | 10/10 | 5096 days | 1% |
| barjjake | 9/10 | 5096 days | 1% |
| cindyd | 10/10 | 5127 days | 1% |
| webstersuk | 10/10 | 5127 days | 1% |
| pezalone | 10/10 | 5127 days | 1% |
| WiseOwl | 10/10 | 5127 days | 1% |
| mausandhari | 10/10 | 5127 days | 1% |
| Pauline | 10/10 | 5157 days | 1% |
| JadesWorld | 9/10 | 5157 days | 1% |
| utstarfish | 10/10 | 5157 days | 1% |
| johnco78 | 10/10 | 5157 days | 1% |
| jrwholey | 10/10 | 5188 days | 1% |
| ShawnM | 10/10 | 5188 days | 1% |
| Tarsh | 10/10 | 5188 days | 1% |
| lindahealey | 10/10 | 5188 days | 1% |
| campbell_steven | 10/10 | 5218 days | 1% |
| markrussell | 10/10 | 5218 days | 1% |
| Bayneer | 10/10 | 5218 days | 1% |
| jaspreetsohal86 | 10/10 | 5218 days | 1% |
| kiwiholly | 10/10 | 5218 days | 1% |
| garethd1980 | 10/10 | 5218 days | 1% |
| Mulliano | 10/10 | 5218 days | 1% |
| CathyK | 10/10 | 5249 days | 1% |
| silver | 10/10 | 5249 days | 1% |
| Meyerclan | 10/10 | 5280 days | 1% |
| poetania | 10/10 | 5310 days | 1% |
| southernboy611 | 10/10 | 5310 days | 1% |
| EvilChris | 10/10 | 5341 days | 1% |
| nia427 | 10/10 | 5371 days | 1% |
| Mags620 | 10/10 | 5371 days | 1% |
| deanblackburn | 10/10 | 5371 days | 1% |
| Heatherorchard | 10/10 | 5402 days | 1% |
| BeetleBom | 10/10 | 5402 days | 1% |
| AnnaBain | 10/10 | 5430 days | 1% |
| geezer | 10/10 | 5430 days | 1% |
| Jen | 10/10 | 5430 days | 1% |
| busheybrew | 10/10 | 5430 days | 1% |
| painter47 | 10/10 | 5461 days | 1% |
| ganbji | 9/10 | 5461 days | 1% |
| charles | 10/10 | 5492 days | 1% |
| alanos | 9/10 | 5492 days | 1% |
| teeneelz | 10/10 | 5492 days | 1% |
| Douggie | 7/10 | 5583 days | 1% |
| celticcolleen | 10/10 | 5706 days | 1% |
| MarcyMark | 10/10 | 5736 days | 1% |
| Susiekj | 10/10 | 5767 days | 1% |
| Kirsten | 10/10 | 5795 days | 1% |
| Ravi Chand | 10/10 | 5826 days | 1% |
| Sika | 10/10 | 5826 days | 1% |
| anthony mcclaren | 9/10 | 5826 days | 1% |
| menzel | 10/10 | 5840 days | 1% |
| joannaw | 10/10 | 5842 days | 1% |
| meisterbaumann | 10/10 | 5857 days | 1% |
| Stefanie Micheler | 10/10 | 5868 days | 1% |
| Aussies | 10/10 | 5887 days | 1% |
| Jake Volle | 10/10 | 5887 days | 1% |
| Jess Woods | 10/10 | 5948 days | 1% |
| emmah | 9/10 | 5984 days | 1% |
| Dave Roebuck | 10/10 | 6010 days | 1% |
| steph_m | 9/10 | 6111 days | 1% |
| JasonL | 8/10 | 6113 days | 1% |
| Tanja Kirschmann | 10/10 | 6115 days | 1% |
| MicheyJ | 10/10 | 6117 days | 1% |
| caz | 10/10 | 6138 days | 1% |
| Cilla | 10/10 | 6143 days | 1% |
| Hannah | 10/10 | 6145 days | 1% |
| karlijn schaap | 10/10 | 6222 days | 1% |
| Murray | 10/10 | 6252 days | 1% |
| Jan Burch | 9/10 | 6364 days | 1% |
| zane mirfin | 10/10 | 6421 days | 1% |
| becky | 10/10 | 6449 days | 1% |
| dave | 9/10 | 6477 days | 1% |
| shinylight | 9/10 | 6508 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
-4.06% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -4.00% |
| 198 | -4.02% |
| 199 | -4.04% |
| 200 | -4.06% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
Balancing Adjustment
0.38% 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
96%
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.