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 Roscos Milford Kayaks.
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.
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Roscos Milford Kayaks
Valid Reviews
105 Valid Reviews
The Roscos Milford Kayaks experience has a total of 106 reviews. There are 105 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 105 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 47 |
|
45% |
| 9/10 | 32 |
|
30% |
| 8/10 | 16 |
|
15% |
| 7/10 | 7 |
|
7% |
| 6/10 | 2 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
90.67% Average
The raw data average (mean) for all the Roscos Milford Kayaks valid reviews is 90.67% and is based on 105 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
78 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 105 valid reviews, the experience has 78 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 78 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 24 |
|
31% |
| 9/10 | 31 |
|
40% |
| 8/10 | 14 |
|
18% |
| 7/10 | 6 |
|
8% |
| 6/10 | 2 |
|
3% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
88.46% Average
The raw data average (mean) for all the Roscos Milford Kayaks face-to-face reviews is 88.46% and is based on 78 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
91.55%
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 |
|---|---|---|---|
| Samantha Brewin | 10/10 | 2727 days | 100% |
| Mark Ashmore | 10/10 | 2943 days | 85% |
| Tim Struessmann | 7/10 | 2960 days | 76% |
| Fran and Ben | 10/10 | 2976 days | 82% |
| Alex Hah | 9/10 | 3002 days | 79% |
| Matthew | 8/10 | 3012 days | 78% |
| Stefania Colla | 10/10 | 3020 days | 79% |
| Rick Semo | 10/10 | 3020 days | 79% |
| Jessica Freeland | 9/10 | 3037 days | 77% |
| Ane Pujol | 10/10 | 3041 days | 77% |
| Nicole Joersen | 9/10 | 3059 days | 75% |
| Matthus Groem | 9/10 | 3059 days | 75% |
| Kristin Pogue | 10/10 | 3298 days | 59% |
| Molly Bogeberg | 9/10 | 3320 days | 57% |
| Hugo Alfonso | 10/10 | 3326 days | 57% |
| Bill Priddy | 10/10 | 3326 days | 57% |
| Stephen Ophelder | 10/10 | 3326 days | 57% |
| Horitz | 10/10 | 3339 days | 56% |
| Lindsay Dell | 9/10 | 3349 days | 55% |
| Florian Bellark | 9/10 | 3351 days | 55% |
| Gonne Clasen | 7/10 | 3369 days | 49% |
| Gregory | 9/10 | 3372 days | 53% |
| Maxime Louis | 10/10 | 3376 days | 53% |
| dror cohen | 10/10 | 3386 days | 53% |
| Ludo and Cha | 8/10 | 3411 days | 50% |
| Graham Lighner | 9/10 | 3427 days | 49% |
| Iris Gigacher | 9/10 | 3445 days | 48% |
| Jennifer Brown | 10/10 | 3447 days | 48% |
| Emma | 10/10 | 3692 days | 31% |
| Jam Boggomann | 7/10 | 3778 days | 22% |
| Claudia de Winter | 8/10 | 4028 days | 6% |
| Brian Lexmond | 6/10 | 4029 days | 3% |
| Simeon W | 9/10 | 4039 days | 6% |
| Daniel Robledo | 9/10 | 4058 days | 4% |
| Maria Camen Santos Lopez | 9/10 | 4058 days | 4% |
| Maria = Moller Hansen | 10/10 | 4068 days | 4% |
| Bjorn Houlberg | 10/10 | 4068 days | 4% |
| Michael Uebe | 8/10 | 4088 days | 2% |
| Daniel McAlpine | 10/10 | 4121 days | 0% |
| Kellie | 10/10 | 4121 days | 0% |
| Fjord | 10/10 | 4406 days | 18% |
| Maria Klister | 10/10 | 4406 days | 18% |
| Friederike | 10/10 | 4406 days | 18% |
| Raelene Vine | 10/10 | 4422 days | 18% |
| Jeremy Eng | 8/10 | 4422 days | 17% |
| Luisa | 10/10 | 4427 days | 18% |
| Sohie | 10/10 | 4427 days | 18% |
| Nigel Leighton | 10/10 | 4500 days | 18% |
| Jonathan Vondette | 9/10 | 4503 days | 18% |
| D Pieter | 6/10 | 4510 days | 13% |
| Anne Sutkowi | 10/10 | 4512 days | 18% |
| Karsten Meyer | 8/10 | 4527 days | 17% |
| Green UK | 9/10 | 4768 days | 18% |
| Michael Neumann | 9/10 | 4774 days | 18% |
| jackson78 | 10/10 | 4847 days | 18% |
| C | 10/10 | 4847 days | 18% |
| Extremo | 10/10 | 4878 days | 18% |
| Allan Johnston | 10/10 | 4939 days | 18% |
| Jorge Martinez Gacio | 8/10 | 5133 days | 17% |
| Boi Sagarra | 7/10 | 5136 days | 16% |
| Margit and Corein Groenevelt | 8/10 | 5139 days | 17% |
| Mulder & vanNistelrooij | 8/10 | 5144 days | 17% |
| Fabrizio Consolini | 8/10 | 5144 days | 17% |
| Estel la Prado | 10/10 | 5147 days | 18% |
| Susan Herd | 9/10 | 5148 days | 18% |
| Jessica Vogels | 9/10 | 5151 days | 18% |
| Emma Ducat | 10/10 | 5153 days | 18% |
| Melanie Gruber | 10/10 | 5154 days | 18% |
| Lukis Haertel | 9/10 | 5178 days | 18% |
| ccthornton100 | 9/10 | 5518 days | 18% |
| Nicky and Andy Prescott | 10/10 | 5520 days | 18% |
| David Morton | 8/10 | 5520 days | 17% |
| Thomas K | 9/10 | 5527 days | 18% |
| Belinda Godhard | 9/10 | 5543 days | 18% |
| Thomas Stopp | 9/10 | 5546 days | 18% |
| joannaw | 9/10 | 5593 days | 18% |
| Simon Slawner | 9/10 | 5610 days | 18% |
| Thorben Thede | 7/10 | 5620 days | 16% |
| anne p | 7/10 | 5631 days | 16% |
| eric14 | 8/10 | 5669 days | 17% |
| Sam819 | 10/10 | 5669 days | 18% |
| SandraThomas | 10/10 | 5669 days | 18% |
| MarielR | 8/10 | 5870 days | 17% |
| Donna | 10/10 | 5877 days | 18% |
| Sam Marshall | 7/10 | 5880 days | 16% |
| Peter | 9/10 | 5900 days | 18% |
| Hans | 8/10 | 5901 days | 17% |
| ali_m | 10/10 | 5921 days | 18% |
| Emily | 10/10 | 5960 days | 18% |
| Tom | 10/10 | 5969 days | 18% |
| Aoife | 9/10 | 6027 days | 18% |
| Shannon | 5/10 | 6101 days | 9% |
| Martin | 9/10 | 6120 days | 18% |
| Eric Campbell | 10/10 | 6139 days | 18% |
| Corin Kraft | 10/10 | 6194 days | 18% |
| hobl | 10/10 | 6202 days | 18% |
| cyntha rams | 10/10 | 6227 days | 18% |
| Katy Bray | 9/10 | 6232 days | 18% |
| Vicki | 9/10 | 6250 days | 18% |
| Walter | 9/10 | 6266 days | 18% |
| Sabine | 10/10 | 6266 days | 18% |
| Dupre | 8/10 | 6321 days | 17% |
| Kate and Dave | 10/10 | 6454 days | 18% |
| Susan | 9/10 | 6602 days | 18% |
| Peter | 8/10 | 6622 days | 17% |
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 Roscos Milford Kayaks experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.59% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 63 days. However the Roscos Milford Kayaks 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 Roscos Milford Kayaks experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.53% |
| 198 | -3.55% |
| 199 | -3.57% |
| 200 | -3.59% |
| 201 | -3.60% |
| 202 | -3.62% |
| 203 | -3.64% |
| … | … |
Balancing Adjustment
1.30% 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
89%
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.