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
168 Valid Reviews
The Tongariro River Rafting experience has a total of 169 reviews. There are 168 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 168 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 144 |
|
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% |
98.04% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.04% and is based on 168 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 168 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 |
|---|---|---|---|
| Cody | 10/10 | 55 days | 100% |
| Madonna Thomson | 10/10 | 145 days | 99% |
| Amanda Thomson | 10/10 | 420 days | 90% |
| Peter Little | 10/10 | 449 days | 89% |
| Michaela Liff | 10/10 | 694 days | 73% |
| Kusum | 10/10 | 1151 days | 31% |
| Betty Dunn | 10/10 | 1179 days | 29% |
| Ruth | 10/10 | 1759 days | 5% |
| Gary Koh | 10/10 | 1972 days | 5% |
| Jan | 10/10 | 2002 days | 4% |
| Alison B. | 10/10 | 2002 days | 4% |
| John Olsen | 10/10 | 2033 days | 4% |
| Peter | 10/10 | 2125 days | 4% |
| Ben | 10/10 | 2155 days | 4% |
| Ian | 10/10 | 2216 days | 4% |
| Gary Walker | 10/10 | 2216 days | 4% |
| Rowella Bacwaden | 10/10 | 2247 days | 4% |
| Eileen H | 10/10 | 2306 days | 4% |
| Brad | 10/10 | 2367 days | 4% |
| Jared London | 10/10 | 2398 days | 4% |
| Helen Turner | 10/10 | 2428 days | 4% |
| James | 10/10 | 2459 days | 4% |
| Isabelle_Qc | 10/10 | 2490 days | 4% |
| Laura | 10/10 | 2520 days | 3% |
| ACE Richardson | 10/10 | 2551 days | 3% |
| Thea :-) | 10/10 | 2612 days | 3% |
| William Webb | 10/10 | 2639 days | 3% |
| Katelyn Mills | 10/10 | 2640 days | 3% |
| Mrs Smith | 10/10 | 2640 days | 3% |
| Mel | 10/10 | 2640 days | 3% |
| Wayne Smith | 10/10 | 2640 days | 3% |
| Kim | 10/10 | 2670 days | 3% |
| Songyang Liu | 10/10 | 2670 days | 3% |
| Mark Haydon | 10/10 | 3004 days | 3% |
| Kathryn Sherlock | 10/10 | 3219 days | 2% |
| Cherie Kemp | 10/10 | 3219 days | 2% |
| Renee Kemp | 10/10 | 3219 days | 2% |
| Patrick McIvor | 10/10 | 3341 days | 2% |
| Lengxi | 10/10 | 3368 days | 1% |
| Uschi Pongratz | 10/10 | 3376 days | 1% |
| Jessica Ruhland | 10/10 | 3376 days | 1% |
| Paul | 7/10 | 3381 days | 1% |
| Philip Piel | 8/10 | 3381 days | 1% |
| Chiara | 8/10 | 3381 days | 1% |
| Jess | 10/10 | 3418 days | 1% |
| TashJ | 10/10 | 3432 days | 2% |
| Funny Schutt | 10/10 | 3432 days | 2% |
| Craig McCarthy | 10/10 | 3463 days | 2% |
| Tim K | 10/10 | 3463 days | 2% |
| Jack Shearer | 10/10 | 3585 days | 1% |
| Monika M | 10/10 | 3616 days | 1% |
| Ian Wilmot | 10/10 | 3676 days | 1% |
| Rodger Lamb | 10/10 | 3707 days | 1% |
| Leah Kyllo | 10/10 | 3766 days | 1% |
| Juliet Battersby | 10/10 | 3766 days | 1% |
| Chris C | 10/10 | 3827 days | 1% |
| Jessica | 10/10 | 3919 days | 1% |
| Mike Hollows | 10/10 | 4011 days | 1% |
| Monique Hollows | 10/10 | 4072 days | 0% |
| Thomas Subritzky | 10/10 | 4073 days | 0% |
| hmsteele | 10/10 | 4101 days | 0% |
| andy godfrey | 9/10 | 4132 days | 0% |
| Chris Nisbet | 8/10 | 4132 days | 0% |
| Michelle Sanders | 9/10 | 4163 days | 0% |
| phil costello | 8/10 | 4193 days | 0% |
| Robyn Orchard | 10/10 | 4224 days | 0% |
| Gisele Phillips | 9/10 | 4224 days | 0% |
| E Wall | 10/10 | 4224 days | 0% |
| Julie | 10/10 | 4254 days | 0% |
| Little | 10/10 | 4254 days | 0% |
| Grahame Keast | 10/10 | 4285 days | 0% |
| Linda Bates | 10/10 | 4285 days | 0% |
| Morgan Buckingham | 10/10 | 4285 days | 0% |
| Bertiethebus | 10/10 | 4407 days | 1% |
| Julian Roots | 10/10 | 4438 days | 1% |
| Lynette Nicolson | 10/10 | 4497 days | 1% |
| RENs Rens | 10/10 | 4497 days | 1% |
| CKDNH | 10/10 | 4558 days | 1% |
| mattus | 9/10 | 4558 days | 1% |
| Ken | 10/10 | 4558 days | 1% |
| Kathy27 | 10/10 | 4558 days | 1% |
| ladywithplants | 9/10 | 4619 days | 1% |
| princessliz | 10/10 | 4619 days | 1% |
| lariley | 9/10 | 4619 days | 1% |
| richardp | 10/10 | 4650 days | 1% |
| prasanth03 | 10/10 | 4681 days | 1% |
| EllieW | 10/10 | 4711 days | 1% |
| Terry | 10/10 | 4772 days | 1% |
| Borderland | 10/10 | 4803 days | 1% |
| jimbob | 10/10 | 4803 days | 1% |
| mopheim | 10/10 | 4803 days | 1% |
| Mats Harstedt | 9/10 | 4812 days | 0% |
| KateS | 10/10 | 4832 days | 1% |
| RubberDuck | 10/10 | 4863 days | 1% |
| Red_Hurring | 10/10 | 4863 days | 1% |
| travelpam | 10/10 | 4863 days | 1% |
| barjjake | 9/10 | 4863 days | 1% |
| cindyd | 10/10 | 4894 days | 1% |
| webstersuk | 10/10 | 4894 days | 1% |
| pezalone | 10/10 | 4894 days | 1% |
| WiseOwl | 10/10 | 4894 days | 1% |
| mausandhari | 10/10 | 4894 days | 1% |
| Pauline | 10/10 | 4924 days | 1% |
| JadesWorld | 9/10 | 4924 days | 1% |
| utstarfish | 10/10 | 4924 days | 1% |
| johnco78 | 10/10 | 4924 days | 1% |
| jrwholey | 10/10 | 4955 days | 1% |
| ShawnM | 10/10 | 4955 days | 1% |
| Tarsh | 10/10 | 4955 days | 1% |
| lindahealey | 10/10 | 4955 days | 1% |
| campbell_steven | 10/10 | 4985 days | 1% |
| markrussell | 10/10 | 4985 days | 1% |
| Bayneer | 10/10 | 4985 days | 1% |
| jaspreetsohal86 | 10/10 | 4985 days | 1% |
| kiwiholly | 10/10 | 4985 days | 1% |
| garethd1980 | 10/10 | 4985 days | 1% |
| Mulliano | 10/10 | 4985 days | 1% |
| CathyK | 10/10 | 5016 days | 1% |
| silver | 10/10 | 5016 days | 1% |
| Meyerclan | 10/10 | 5047 days | 1% |
| poetania | 10/10 | 5077 days | 1% |
| southernboy611 | 10/10 | 5077 days | 1% |
| EvilChris | 10/10 | 5108 days | 1% |
| nia427 | 10/10 | 5138 days | 1% |
| Mags620 | 10/10 | 5138 days | 1% |
| deanblackburn | 10/10 | 5138 days | 1% |
| Heatherorchard | 10/10 | 5169 days | 1% |
| BeetleBom | 10/10 | 5169 days | 1% |
| AnnaBain | 10/10 | 5197 days | 1% |
| geezer | 10/10 | 5197 days | 1% |
| Jen | 10/10 | 5197 days | 1% |
| busheybrew | 10/10 | 5197 days | 1% |
| painter47 | 10/10 | 5228 days | 1% |
| ganbji | 9/10 | 5228 days | 1% |
| charles | 10/10 | 5259 days | 1% |
| alanos | 9/10 | 5259 days | 1% |
| teeneelz | 10/10 | 5259 days | 1% |
| Douggie | 7/10 | 5350 days | 1% |
| celticcolleen | 10/10 | 5473 days | 1% |
| MarcyMark | 10/10 | 5503 days | 1% |
| Susiekj | 10/10 | 5534 days | 1% |
| Kirsten | 10/10 | 5562 days | 1% |
| Ravi Chand | 10/10 | 5593 days | 1% |
| Sika | 10/10 | 5593 days | 1% |
| anthony mcclaren | 9/10 | 5593 days | 1% |
| menzel | 10/10 | 5607 days | 0% |
| joannaw | 10/10 | 5609 days | 0% |
| meisterbaumann | 10/10 | 5624 days | 1% |
| Stefanie Micheler | 10/10 | 5635 days | 0% |
| Aussies | 10/10 | 5654 days | 1% |
| Jake Volle | 10/10 | 5654 days | 1% |
| Jess Woods | 10/10 | 5715 days | 1% |
| emmah | 9/10 | 5751 days | 0% |
| Dave Roebuck | 10/10 | 5777 days | 1% |
| steph_m | 9/10 | 5877 days | 1% |
| JasonL | 8/10 | 5880 days | 0% |
| Tanja Kirschmann | 10/10 | 5881 days | 1% |
| MicheyJ | 10/10 | 5883 days | 1% |
| caz | 10/10 | 5904 days | 1% |
| Cilla | 10/10 | 5909 days | 0% |
| Hannah | 10/10 | 5911 days | 1% |
| karlijn schaap | 10/10 | 5988 days | 1% |
| Murray | 10/10 | 6018 days | 1% |
| Jan Burch | 9/10 | 6131 days | 1% |
| zane mirfin | 10/10 | 6187 days | 1% |
| becky | 10/10 | 6215 days | 1% |
| dave | 9/10 | 6243 days | 1% |
| shinylight | 9/10 | 6275 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
-0.49% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 73 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 30 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 27 | -0.44% |
| 28 | -0.45% |
| 29 | -0.47% |
| 30 | -0.49% |
| 31 | -0.50% |
| 32 | -0.52% |
| 33 | -0.54% |
| … | … |
Balancing Adjustment
0.07% 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.