G'day, 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 Oamaru Blue Penguin Colony.
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.
Oamaru Blue Penguin Colony
Valid Reviews
125 Valid Reviews
The Oamaru Blue Penguin Colony experience has a total of 126 reviews. There are 125 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 125 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 28 |
|
22% |
| 9/10 | 30 |
|
24% |
| 8/10 | 19 |
|
15% |
| 7/10 | 15 |
|
12% |
| 6/10 | 8 |
|
6% |
| 5/10 | 9 |
|
7% |
| 4/10 | 9 |
|
7% |
| 3/10 | 2 |
|
2% |
| 2/10 | 3 |
|
2% |
| 1/10 | 2 |
|
2% |
76.00% Average
The raw data average (mean) for all the Oamaru Blue Penguin Colony valid reviews is 76.00% and is based on 125 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
109 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 125 valid reviews, the experience has 109 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 109 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 23 |
|
21% |
| 9/10 | 27 |
|
25% |
| 8/10 | 17 |
|
16% |
| 7/10 | 14 |
|
13% |
| 6/10 | 7 |
|
6% |
| 5/10 | 8 |
|
7% |
| 4/10 | 6 |
|
6% |
| 3/10 | 2 |
|
2% |
| 2/10 | 3 |
|
3% |
| 1/10 | 2 |
|
2% |
75.87% Average
The raw data average (mean) for all the Oamaru Blue Penguin Colony face-to-face reviews is 75.87% and is based on 109 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
79.68%
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 |
|---|---|---|---|
| Dina Schurer | 7/10 | 2799 days | 96% |
| J P Schurer | 7/10 | 2799 days | 96% |
| Dries | 9/10 | 2839 days | 100% |
| Jasmine Rogers | 10/10 | 2852 days | 100% |
| Sophie | 10/10 | 2859 days | 100% |
| Nicholas Strozza | 8/10 | 2892 days | 95% |
| Jill Stebbing | 9/10 | 3115 days | 82% |
| Lothen | 8/10 | 3136 days | 80% |
| Lea Watterson | 9/10 | 3158 days | 79% |
| James Esele | 7/10 | 3212 days | 71% |
| Philipp | 2/10 | 3220 days | 34% |
| Coralie Ambrosino | 8/10 | 3478 days | 58% |
| Christoph | 10/10 | 3481 days | 59% |
| Fanny DeBon | 8/10 | 3579 days | 51% |
| Hubert | 10/10 | 3589 days | 52% |
| Sagi | 2/10 | 3860 days | 15% |
| Henrik Suefke | 10/10 | 3878 days | 33% |
| Kiernan Matthew | 7/10 | 3883 days | 30% |
| Alexis Redor | 9/10 | 3887 days | 32% |
| Lars Borgaa | 4/10 | 3896 days | 20% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4190 days | 8% |
| Glenn Surzur | 4/10 | 4217 days | 7% |
| Michael Walker | 10/10 | 4223 days | 10% |
| Lorraine Walker | 9/10 | 4223 days | 10% |
| Michael Nolan | 10/10 | 4249 days | 8% |
| Jim Woodruff | 10/10 | 4249 days | 8% |
| Lis Bon | 10/10 | 4280 days | 6% |
| Liam Day | 10/10 | 4297 days | 5% |
| Auger | 9/10 | 4318 days | 4% |
| Auger | 9/10 | 4318 days | 4% |
| C Schaap | 8/10 | 4322 days | 3% |
| Marjo Cousijn | 9/10 | 4328 days | 3% |
| gareth williams | 5/10 | 4372 days | 0% |
| Dagette | 8/10 | 4372 days | 0% |
| Wright | 10/10 | 4590 days | 33% |
| Emma Bagguley | 4/10 | 4593 days | 22% |
| Hazel & Alan Damerell | 10/10 | 4597 days | 33% |
| Michael & Rosemary Smith | 9/10 | 4601 days | 33% |
| Koster | 10/10 | 4601 days | 33% |
| John A Jerome | 6/10 | 4601 days | 29% |
| Katrawa | 5/10 | 4608 days | 25% |
| Jensen Bresbenbeek | 7/10 | 4678 days | 31% |
| Rebecca & Hugh Small | 5/10 | 4687 days | 25% |
| Steve | 3/10 | 4691 days | 18% |
| topsy08 | 7/10 | 4921 days | 31% |
| Gunter | 9/10 | 4935 days | 33% |
| Tim Laurent | 5/10 | 4943 days | 25% |
| Keith Ogley | 6/10 | 4946 days | 29% |
| Lynda Hutchins | 10/10 | 4946 days | 33% |
| Louise van der Hyden | 4/10 | 4950 days | 22% |
| Katie Mitchell | 9/10 | 4952 days | 33% |
| Gerhard | 8/10 | 4953 days | 33% |
| Kasten | 8/10 | 4954 days | 33% |
| C P Lawrence | 4/10 | 4956 days | 22% |
| Bucher Weruer | 9/10 | 4956 days | 33% |
| Naomi Kosteaman | 9/10 | 4956 days | 33% |
| Rian Bach | 5/10 | 4958 days | 25% |
| Josef & Christine Evers | 8/10 | 4961 days | 33% |
| Frank Schedler | 5/10 | 4963 days | 25% |
| Gerd Pagel | 7/10 | 4965 days | 31% |
| Charlie | 9/10 | 4966 days | 33% |
| Dana Pagliarini | 5/10 | 4968 days | 25% |
| Andy Martin | 8/10 | 4969 days | 33% |
| Julia | 5/10 | 4972 days | 25% |
| Doris Neuber | 7/10 | 4979 days | 31% |
| Teknik151 | 4/10 | 4980 days | 22% |
| Warris2500 | 4/10 | 5164 days | 22% |
| Versteeg | 7/10 | 5238 days | 31% |
| Victoria Slater | 6/10 | 5291 days | 29% |
| Bowness | 10/10 | 5304 days | 33% |
| David B | 9/10 | 5312 days | 33% |
| Sievers | 9/10 | 5320 days | 33% |
| Don & Alice | 9/10 | 5321 days | 33% |
| Amanda Iavarone | 10/10 | 5323 days | 33% |
| Sheila Morgan | 10/10 | 5326 days | 33% |
| Wilbert Germ | 9/10 | 5330 days | 33% |
| Ronny | 6/10 | 5331 days | 29% |
| Annette Schmitt | 4/10 | 5339 days | 22% |
| Annie | 7/10 | 5339 days | 31% |
| Nadine Schaee | 6/10 | 5342 days | 29% |
| Terry Phillips | 8/10 | 5342 days | 33% |
| Chance McGuire | 10/10 | 5345 days | 33% |
| Richard Pearson | 6/10 | 5355 days | 29% |
| cees juffermans | 3/10 | 5358 days | 18% |
| wenerz | 1/10 | 5392 days | 13% |
| Werner Zuis | 1/10 | 5392 days | 13% |
| alasiac | 10/10 | 5407 days | 33% |
| Mark Jenkins | 5/10 | 5415 days | 25% |
| Silvana Thom | 10/10 | 5417 days | 33% |
| Alexis De Wilde | 7/10 | 5417 days | 31% |
| Cyriel Schacken | 7/10 | 5417 days | 31% |
| Simon Bartholomew | 10/10 | 5419 days | 33% |
| Marcel Schleinkcfer | 10/10 | 5419 days | 33% |
| Thorben Thede | 9/10 | 5419 days | 33% |
| Roma | 9/10 | 5430 days | 33% |
| brianp | 8/10 | 5523 days | 33% |
| Rose and Jess Damon and Esler | 6/10 | 5560 days | 29% |
| OliverG1 | 9/10 | 5639 days | 33% |
| Anji Sprinks | 8/10 | 5648 days | 33% |
| Ger | 6/10 | 5649 days | 29% |
| JanW | 8/10 | 5663 days | 33% |
| Ian | 8/10 | 5674 days | 33% |
| Tatjane | 2/10 | 5682 days | 15% |
| ChristineM | 10/10 | 5684 days | 33% |
| SebastianGermany1 | 9/10 | 5686 days | 33% |
| Paul | 9/10 | 5694 days | 33% |
| SiegfriedL | 10/10 | 5706 days | 33% |
| purplekat99 | 9/10 | 5741 days | 33% |
| Klaus | 7/10 | 6042 days | 31% |
| Volders | 10/10 | 6044 days | 33% |
| Dot & Gordon Quaid | 9/10 | 6058 days | 33% |
| Roger & Margaret | 8/10 | 6065 days | 33% |
| John Howlett | 7/10 | 6067 days | 31% |
| Dupre | 7/10 | 6120 days | 31% |
| Paul Cowie | 9/10 | 6126 days | 33% |
| Floren | 9/10 | 6140 days | 33% |
| Killerblow | 10/10 | 6148 days | 33% |
| Lisbeth Johansson | 8/10 | 6253 days | 33% |
| TeamFlorida | 10/10 | 6388 days | 33% |
| John Beirne | 10/10 | 6405 days | 33% |
| Pete | 9/10 | 6405 days | 33% |
| Anne | 8/10 | 6405 days | 33% |
| Anna | 9/10 | 6410 days | 33% |
| Mitch | 8/10 | 6416 days | 33% |
| Ian | 9/10 | 6433 days | 33% |
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 Oamaru Blue Penguin Colony experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 74 days. However the Oamaru Blue Penguin Colony 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 Oamaru Blue Penguin Colony experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.01% |
| 198 | -3.02% |
| 199 | -3.04% |
| 200 | -3.05% |
| 201 | -3.07% |
| 202 | -3.08% |
| 203 | -3.10% |
| … | … |
Balancing Adjustment
4.04% 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
81%
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.