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
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
99.67%
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 | 30 days | 100% |
| Lynda B | 10/10 | 92 days | 100% |
| V Buys | 10/10 | 336 days | 94% |
| Cody | 10/10 | 367 days | 92% |
| Madonna Thomson | 10/10 | 457 days | 88% |
| Amanda Thomson | 10/10 | 732 days | 69% |
| Peter Little | 10/10 | 761 days | 67% |
| Michaela Liff | 10/10 | 1006 days | 43% |
| Kusum | 10/10 | 1463 days | 12% |
| Betty Dunn | 10/10 | 1491 days | 11% |
| Ruth | 10/10 | 2071 days | 4% |
| Gary Koh | 10/10 | 2284 days | 4% |
| Jan | 10/10 | 2314 days | 4% |
| Alison B. | 10/10 | 2314 days | 4% |
| John Olsen | 10/10 | 2345 days | 4% |
| Peter | 10/10 | 2437 days | 4% |
| Ben | 10/10 | 2467 days | 4% |
| Ian | 10/10 | 2528 days | 4% |
| Gary Walker | 10/10 | 2528 days | 4% |
| Rowella Bacwaden | 10/10 | 2559 days | 3% |
| Eileen H | 10/10 | 2618 days | 3% |
| Brad | 10/10 | 2679 days | 3% |
| Jared London | 10/10 | 2710 days | 3% |
| Helen Turner | 10/10 | 2740 days | 3% |
| James | 10/10 | 2771 days | 3% |
| Isabelle_Qc | 10/10 | 2802 days | 3% |
| Laura | 10/10 | 2832 days | 3% |
| ACE Richardson | 10/10 | 2863 days | 3% |
| Thea :-) | 10/10 | 2924 days | 3% |
| William Webb | 10/10 | 2952 days | 3% |
| Katelyn Mills | 10/10 | 2952 days | 3% |
| Mrs Smith | 10/10 | 2952 days | 3% |
| Mel | 10/10 | 2952 days | 3% |
| Wayne Smith | 10/10 | 2952 days | 3% |
| Kim | 10/10 | 2983 days | 3% |
| Songyang Liu | 10/10 | 2983 days | 3% |
| Mark Haydon | 10/10 | 3317 days | 2% |
| Kathryn Sherlock | 10/10 | 3532 days | 2% |
| Cherie Kemp | 10/10 | 3532 days | 2% |
| Renee Kemp | 10/10 | 3532 days | 2% |
| Patrick McIvor | 10/10 | 3654 days | 1% |
| Lengxi | 10/10 | 3680 days | 1% |
| Uschi Pongratz | 10/10 | 3688 days | 1% |
| Jessica Ruhland | 10/10 | 3688 days | 1% |
| Paul | 7/10 | 3693 days | 1% |
| Philip Piel | 8/10 | 3693 days | 1% |
| Chiara | 8/10 | 3693 days | 1% |
| Jess | 10/10 | 3730 days | 1% |
| TashJ | 10/10 | 3745 days | 1% |
| Funny Schutt | 10/10 | 3745 days | 1% |
| Craig McCarthy | 10/10 | 3775 days | 1% |
| Tim K | 10/10 | 3775 days | 1% |
| Jack Shearer | 10/10 | 3898 days | 1% |
| Monika M | 10/10 | 3928 days | 1% |
| Ian Wilmot | 10/10 | 3989 days | 1% |
| Rodger Lamb | 10/10 | 4020 days | 1% |
| Leah Kyllo | 10/10 | 4079 days | 0% |
| Juliet Battersby | 10/10 | 4079 days | 0% |
| Chris C | 10/10 | 4140 days | 0% |
| Jessica | 10/10 | 4232 days | 0% |
| Mike Hollows | 10/10 | 4324 days | 0% |
| Monique Hollows | 10/10 | 4385 days | 1% |
| Thomas Subritzky | 10/10 | 4385 days | 1% |
| hmsteele | 10/10 | 4413 days | 1% |
| andy godfrey | 9/10 | 4444 days | 1% |
| Chris Nisbet | 8/10 | 4444 days | 1% |
| Michelle Sanders | 9/10 | 4475 days | 1% |
| phil costello | 8/10 | 4505 days | 1% |
| Robyn Orchard | 10/10 | 4536 days | 1% |
| Gisele Phillips | 9/10 | 4536 days | 1% |
| E Wall | 10/10 | 4536 days | 1% |
| Julie | 10/10 | 4566 days | 1% |
| Little | 10/10 | 4566 days | 1% |
| Grahame Keast | 10/10 | 4597 days | 1% |
| Linda Bates | 10/10 | 4597 days | 1% |
| Morgan Buckingham | 10/10 | 4597 days | 1% |
| Bertiethebus | 10/10 | 4719 days | 1% |
| Julian Roots | 10/10 | 4750 days | 1% |
| Lynette Nicolson | 10/10 | 4809 days | 1% |
| RENs Rens | 10/10 | 4809 days | 1% |
| CKDNH | 10/10 | 4870 days | 1% |
| mattus | 9/10 | 4870 days | 1% |
| Ken | 10/10 | 4870 days | 1% |
| Kathy27 | 10/10 | 4870 days | 1% |
| ladywithplants | 9/10 | 4931 days | 1% |
| princessliz | 10/10 | 4931 days | 1% |
| lariley | 9/10 | 4931 days | 1% |
| richardp | 10/10 | 4962 days | 1% |
| prasanth03 | 10/10 | 4993 days | 1% |
| EllieW | 10/10 | 5023 days | 1% |
| Terry | 10/10 | 5084 days | 1% |
| Borderland | 10/10 | 5115 days | 1% |
| jimbob | 10/10 | 5115 days | 1% |
| mopheim | 10/10 | 5115 days | 1% |
| Mats Harstedt | 9/10 | 5124 days | 0% |
| KateS | 10/10 | 5144 days | 1% |
| RubberDuck | 10/10 | 5175 days | 1% |
| Red_Hurring | 10/10 | 5175 days | 1% |
| travelpam | 10/10 | 5175 days | 1% |
| barjjake | 9/10 | 5175 days | 1% |
| cindyd | 10/10 | 5206 days | 1% |
| webstersuk | 10/10 | 5206 days | 1% |
| pezalone | 10/10 | 5206 days | 1% |
| WiseOwl | 10/10 | 5206 days | 1% |
| mausandhari | 10/10 | 5206 days | 1% |
| Pauline | 10/10 | 5236 days | 1% |
| JadesWorld | 9/10 | 5236 days | 1% |
| utstarfish | 10/10 | 5236 days | 1% |
| johnco78 | 10/10 | 5236 days | 1% |
| jrwholey | 10/10 | 5267 days | 1% |
| ShawnM | 10/10 | 5267 days | 1% |
| Tarsh | 10/10 | 5267 days | 1% |
| lindahealey | 10/10 | 5267 days | 1% |
| campbell_steven | 10/10 | 5297 days | 1% |
| markrussell | 10/10 | 5297 days | 1% |
| Bayneer | 10/10 | 5297 days | 1% |
| jaspreetsohal86 | 10/10 | 5297 days | 1% |
| kiwiholly | 10/10 | 5297 days | 1% |
| garethd1980 | 10/10 | 5297 days | 1% |
| Mulliano | 10/10 | 5297 days | 1% |
| CathyK | 10/10 | 5328 days | 1% |
| silver | 10/10 | 5328 days | 1% |
| Meyerclan | 10/10 | 5359 days | 1% |
| poetania | 10/10 | 5389 days | 1% |
| southernboy611 | 10/10 | 5389 days | 1% |
| EvilChris | 10/10 | 5420 days | 1% |
| nia427 | 10/10 | 5450 days | 1% |
| Mags620 | 10/10 | 5450 days | 1% |
| deanblackburn | 10/10 | 5450 days | 1% |
| Heatherorchard | 10/10 | 5481 days | 1% |
| BeetleBom | 10/10 | 5481 days | 1% |
| AnnaBain | 10/10 | 5509 days | 1% |
| geezer | 10/10 | 5509 days | 1% |
| Jen | 10/10 | 5509 days | 1% |
| busheybrew | 10/10 | 5509 days | 1% |
| painter47 | 10/10 | 5540 days | 1% |
| ganbji | 9/10 | 5540 days | 1% |
| charles | 10/10 | 5571 days | 1% |
| alanos | 9/10 | 5571 days | 1% |
| teeneelz | 10/10 | 5571 days | 1% |
| Douggie | 7/10 | 5662 days | 1% |
| celticcolleen | 10/10 | 5785 days | 1% |
| MarcyMark | 10/10 | 5815 days | 1% |
| Susiekj | 10/10 | 5846 days | 1% |
| Kirsten | 10/10 | 5874 days | 1% |
| Ravi Chand | 10/10 | 5905 days | 1% |
| Sika | 10/10 | 5905 days | 1% |
| anthony mcclaren | 9/10 | 5905 days | 1% |
| menzel | 10/10 | 5919 days | 0% |
| joannaw | 10/10 | 5921 days | 0% |
| meisterbaumann | 10/10 | 5936 days | 1% |
| Stefanie Micheler | 10/10 | 5947 days | 0% |
| Aussies | 10/10 | 5966 days | 1% |
| Jake Volle | 10/10 | 5966 days | 1% |
| Jess Woods | 10/10 | 6027 days | 1% |
| emmah | 9/10 | 6063 days | 0% |
| Dave Roebuck | 10/10 | 6089 days | 1% |
| steph_m | 9/10 | 6190 days | 1% |
| JasonL | 8/10 | 6192 days | 0% |
| Tanja Kirschmann | 10/10 | 6194 days | 1% |
| MicheyJ | 10/10 | 6196 days | 1% |
| caz | 10/10 | 6216 days | 1% |
| Cilla | 10/10 | 6222 days | 0% |
| Hannah | 10/10 | 6224 days | 1% |
| karlijn schaap | 10/10 | 6301 days | 1% |
| Murray | 10/10 | 6331 days | 1% |
| Jan Burch | 9/10 | 6443 days | 1% |
| zane mirfin | 10/10 | 6500 days | 1% |
| becky | 10/10 | 6527 days | 1% |
| dave | 9/10 | 6555 days | 1% |
| shinylight | 9/10 | 6587 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
-0.14% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 55 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 7 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 4 | -0.08% |
| 5 | -0.10% |
| 6 | -0.12% |
| 7 | -0.14% |
| 8 | -0.16% |
| 9 | -0.18% |
| 10 | -0.20% |
| … | … |
Balancing Adjustment
-0.03% 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.