Hi, 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.
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
91.27%
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 | 2603 days | 100% |
| Mark Ashmore | 10/10 | 2819 days | 88% |
| Tim Struessmann | 7/10 | 2836 days | 81% |
| Fran and Ben | 10/10 | 2852 days | 86% |
| Alex Hah | 9/10 | 2878 days | 84% |
| Matthew | 8/10 | 2888 days | 82% |
| Stefania Colla | 10/10 | 2895 days | 84% |
| Rick Semo | 10/10 | 2895 days | 84% |
| Jessica Freeland | 9/10 | 2913 days | 82% |
| Ane Pujol | 10/10 | 2917 days | 82% |
| Nicole Joersen | 9/10 | 2935 days | 81% |
| Matthus Groem | 9/10 | 2935 days | 81% |
| Kristin Pogue | 10/10 | 3174 days | 68% |
| Molly Bogeberg | 9/10 | 3196 days | 66% |
| Hugo Alfonso | 10/10 | 3201 days | 66% |
| Bill Priddy | 10/10 | 3201 days | 66% |
| Stephen Ophelder | 10/10 | 3202 days | 66% |
| Horitz | 10/10 | 3215 days | 66% |
| Lindsay Dell | 9/10 | 3225 days | 64% |
| Florian Bellark | 9/10 | 3227 days | 64% |
| Gonne Clasen | 7/10 | 3245 days | 59% |
| Gregory | 9/10 | 3248 days | 63% |
| Maxime Louis | 10/10 | 3252 days | 63% |
| dror cohen | 10/10 | 3262 days | 63% |
| Ludo and Cha | 8/10 | 3287 days | 60% |
| Graham Lighner | 9/10 | 3303 days | 60% |
| Iris Gigacher | 9/10 | 3321 days | 59% |
| Jennifer Brown | 10/10 | 3322 days | 60% |
| Emma | 10/10 | 3567 days | 46% |
| Jam Boggomann | 7/10 | 3654 days | 38% |
| Claudia de Winter | 8/10 | 3904 days | 26% |
| Brian Lexmond | 6/10 | 3905 days | 23% |
| Simeon W | 9/10 | 3915 days | 26% |
| Daniel Robledo | 9/10 | 3934 days | 25% |
| Maria Camen Santos Lopez | 9/10 | 3934 days | 25% |
| Maria = Moller Hansen | 10/10 | 3944 days | 24% |
| Bjorn Houlberg | 10/10 | 3944 days | 24% |
| Michael Uebe | 8/10 | 3964 days | 23% |
| Daniel McAlpine | 10/10 | 3997 days | 22% |
| Kellie | 10/10 | 3997 days | 22% |
| Fjord | 10/10 | 4282 days | 5% |
| Maria Klister | 10/10 | 4282 days | 5% |
| Friederike | 10/10 | 4282 days | 5% |
| Raelene Vine | 10/10 | 4298 days | 5% |
| Jeremy Eng | 8/10 | 4298 days | 4% |
| Luisa | 10/10 | 4303 days | 4% |
| Sohie | 10/10 | 4303 days | 4% |
| Nigel Leighton | 10/10 | 4376 days | 0% |
| Jonathan Vondette | 9/10 | 4379 days | 0% |
| D Pieter | 6/10 | 4386 days | 25% |
| Anne Sutkowi | 10/10 | 4388 days | 29% |
| Karsten Meyer | 8/10 | 4403 days | 28% |
| Green UK | 9/10 | 4644 days | 28% |
| Michael Neumann | 9/10 | 4650 days | 28% |
| jackson78 | 10/10 | 4723 days | 29% |
| C | 10/10 | 4723 days | 29% |
| Extremo | 10/10 | 4754 days | 29% |
| Allan Johnston | 10/10 | 4815 days | 29% |
| Jorge Martinez Gacio | 8/10 | 5009 days | 28% |
| Boi Sagarra | 7/10 | 5012 days | 27% |
| Margit and Corein Groenevelt | 8/10 | 5015 days | 28% |
| Mulder & vanNistelrooij | 8/10 | 5020 days | 28% |
| Fabrizio Consolini | 8/10 | 5020 days | 28% |
| Estel la Prado | 10/10 | 5023 days | 29% |
| Susan Herd | 9/10 | 5024 days | 28% |
| Jessica Vogels | 9/10 | 5027 days | 28% |
| Emma Ducat | 10/10 | 5029 days | 29% |
| Melanie Gruber | 10/10 | 5030 days | 29% |
| Lukis Haertel | 9/10 | 5054 days | 28% |
| ccthornton100 | 9/10 | 5394 days | 28% |
| Nicky and Andy Prescott | 10/10 | 5396 days | 29% |
| David Morton | 8/10 | 5396 days | 28% |
| Thomas K | 9/10 | 5403 days | 28% |
| Belinda Godhard | 9/10 | 5419 days | 28% |
| Thomas Stopp | 9/10 | 5422 days | 28% |
| joannaw | 9/10 | 5469 days | 28% |
| Simon Slawner | 9/10 | 5486 days | 28% |
| Thorben Thede | 7/10 | 5496 days | 27% |
| anne p | 7/10 | 5507 days | 27% |
| eric14 | 8/10 | 5545 days | 28% |
| Sam819 | 10/10 | 5545 days | 29% |
| SandraThomas | 10/10 | 5545 days | 29% |
| MarielR | 8/10 | 5746 days | 28% |
| Donna | 10/10 | 5753 days | 29% |
| Sam Marshall | 7/10 | 5756 days | 27% |
| Peter | 9/10 | 5776 days | 28% |
| Hans | 8/10 | 5776 days | 28% |
| ali_m | 10/10 | 5797 days | 29% |
| Emily | 10/10 | 5835 days | 29% |
| Tom | 10/10 | 5844 days | 29% |
| Aoife | 9/10 | 5902 days | 28% |
| Shannon | 5/10 | 5976 days | 22% |
| Martin | 9/10 | 5995 days | 28% |
| Eric Campbell | 10/10 | 6015 days | 29% |
| Corin Kraft | 10/10 | 6070 days | 29% |
| hobl | 10/10 | 6077 days | 29% |
| cyntha rams | 10/10 | 6102 days | 29% |
| Katy Bray | 9/10 | 6108 days | 28% |
| Vicki | 9/10 | 6126 days | 28% |
| Walter | 9/10 | 6142 days | 28% |
| Sabine | 10/10 | 6142 days | 29% |
| Dupre | 8/10 | 6197 days | 28% |
| Kate and Dave | 10/10 | 6330 days | 29% |
| Susan | 9/10 | 6478 days | 28% |
| Peter | 8/10 | 6498 days | 28% |
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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
1.42% 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.