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 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
79.96%
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 | 3251 days | 97% |
| J P Schurer | 7/10 | 3251 days | 97% |
| Dries | 9/10 | 3291 days | 100% |
| Jasmine Rogers | 10/10 | 3304 days | 100% |
| Sophie | 10/10 | 3311 days | 99% |
| Nicholas Strozza | 8/10 | 3344 days | 94% |
| Jill Stebbing | 9/10 | 3567 days | 74% |
| Lothen | 8/10 | 3588 days | 71% |
| Lea Watterson | 9/10 | 3610 days | 70% |
| James Esele | 7/10 | 3664 days | 61% |
| Philipp | 2/10 | 3672 days | 29% |
| Coralie Ambrosino | 8/10 | 3930 days | 40% |
| Christoph | 10/10 | 3933 days | 40% |
| Fanny DeBon | 8/10 | 4031 days | 30% |
| Hubert | 10/10 | 4041 days | 30% |
| Sagi | 2/10 | 4312 days | 1% |
| Henrik Suefke | 10/10 | 4330 days | 3% |
| Kiernan Matthew | 7/10 | 4335 days | 2% |
| Alexis Redor | 9/10 | 4339 days | 2% |
| Lars Borgaa | 4/10 | 4348 days | 0% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4642 days | 30% |
| Glenn Surzur | 4/10 | 4669 days | 30% |
| Michael Walker | 10/10 | 4675 days | 46% |
| Lorraine Walker | 9/10 | 4675 days | 46% |
| Michael Nolan | 10/10 | 4701 days | 46% |
| Jim Woodruff | 10/10 | 4701 days | 46% |
| Lis Bon | 10/10 | 4732 days | 46% |
| Liam Day | 10/10 | 4749 days | 46% |
| Auger | 9/10 | 4770 days | 46% |
| Auger | 9/10 | 4770 days | 46% |
| C Schaap | 8/10 | 4774 days | 45% |
| Marjo Cousijn | 9/10 | 4780 days | 46% |
| gareth williams | 5/10 | 4824 days | 35% |
| Dagette | 8/10 | 4824 days | 45% |
| Wright | 10/10 | 5042 days | 46% |
| Emma Bagguley | 4/10 | 5045 days | 30% |
| Hazel & Alan Damerell | 10/10 | 5049 days | 46% |
| Michael & Rosemary Smith | 9/10 | 5053 days | 46% |
| Koster | 10/10 | 5053 days | 46% |
| John A Jerome | 6/10 | 5053 days | 40% |
| Katrawa | 5/10 | 5060 days | 35% |
| Jensen Bresbenbeek | 7/10 | 5130 days | 43% |
| Rebecca & Hugh Small | 5/10 | 5139 days | 35% |
| Steve | 3/10 | 5143 days | 24% |
| topsy08 | 7/10 | 5373 days | 43% |
| Gunter | 9/10 | 5387 days | 46% |
| Tim Laurent | 5/10 | 5395 days | 35% |
| Keith Ogley | 6/10 | 5398 days | 40% |
| Lynda Hutchins | 10/10 | 5398 days | 46% |
| Louise van der Hyden | 4/10 | 5402 days | 30% |
| Katie Mitchell | 9/10 | 5404 days | 46% |
| Gerhard | 8/10 | 5405 days | 45% |
| Kasten | 8/10 | 5406 days | 45% |
| C P Lawrence | 4/10 | 5408 days | 30% |
| Bucher Weruer | 9/10 | 5408 days | 46% |
| Naomi Kosteaman | 9/10 | 5408 days | 46% |
| Rian Bach | 5/10 | 5410 days | 35% |
| Josef & Christine Evers | 8/10 | 5413 days | 45% |
| Frank Schedler | 5/10 | 5415 days | 35% |
| Gerd Pagel | 7/10 | 5417 days | 43% |
| Charlie | 9/10 | 5418 days | 46% |
| Dana Pagliarini | 5/10 | 5420 days | 35% |
| Andy Martin | 8/10 | 5421 days | 45% |
| Julia | 5/10 | 5424 days | 35% |
| Doris Neuber | 7/10 | 5431 days | 43% |
| Teknik151 | 4/10 | 5432 days | 30% |
| Warris2500 | 4/10 | 5616 days | 30% |
| Versteeg | 7/10 | 5690 days | 43% |
| Victoria Slater | 6/10 | 5743 days | 40% |
| Bowness | 10/10 | 5756 days | 46% |
| David B | 9/10 | 5764 days | 46% |
| Sievers | 9/10 | 5772 days | 46% |
| Don & Alice | 9/10 | 5773 days | 46% |
| Amanda Iavarone | 10/10 | 5775 days | 46% |
| Sheila Morgan | 10/10 | 5778 days | 46% |
| Wilbert Germ | 9/10 | 5782 days | 46% |
| Ronny | 6/10 | 5783 days | 40% |
| Annette Schmitt | 4/10 | 5791 days | 30% |
| Annie | 7/10 | 5791 days | 43% |
| Nadine Schaee | 6/10 | 5794 days | 40% |
| Terry Phillips | 8/10 | 5794 days | 45% |
| Chance McGuire | 10/10 | 5797 days | 46% |
| Richard Pearson | 6/10 | 5807 days | 40% |
| cees juffermans | 3/10 | 5810 days | 24% |
| wenerz | 1/10 | 5844 days | 18% |
| Werner Zuis | 1/10 | 5844 days | 18% |
| alasiac | 10/10 | 5859 days | 46% |
| Mark Jenkins | 5/10 | 5867 days | 35% |
| Silvana Thom | 10/10 | 5869 days | 46% |
| Alexis De Wilde | 7/10 | 5869 days | 43% |
| Cyriel Schacken | 7/10 | 5869 days | 43% |
| Simon Bartholomew | 10/10 | 5871 days | 46% |
| Marcel Schleinkcfer | 10/10 | 5871 days | 46% |
| Thorben Thede | 9/10 | 5871 days | 46% |
| Roma | 9/10 | 5882 days | 46% |
| brianp | 8/10 | 5975 days | 45% |
| Rose and Jess Damon and Esler | 6/10 | 6012 days | 40% |
| OliverG1 | 9/10 | 6091 days | 46% |
| Anji Sprinks | 8/10 | 6100 days | 45% |
| Ger | 6/10 | 6101 days | 40% |
| JanW | 8/10 | 6115 days | 45% |
| Ian | 8/10 | 6126 days | 45% |
| Tatjane | 2/10 | 6134 days | 20% |
| ChristineM | 10/10 | 6136 days | 46% |
| SebastianGermany1 | 9/10 | 6138 days | 46% |
| Paul | 9/10 | 6146 days | 46% |
| SiegfriedL | 10/10 | 6158 days | 46% |
| purplekat99 | 9/10 | 6193 days | 46% |
| Klaus | 7/10 | 6494 days | 43% |
| Volders | 10/10 | 6496 days | 46% |
| Dot & Gordon Quaid | 9/10 | 6510 days | 46% |
| Roger & Margaret | 8/10 | 6517 days | 45% |
| John Howlett | 7/10 | 6519 days | 43% |
| Dupre | 7/10 | 6572 days | 43% |
| Paul Cowie | 9/10 | 6578 days | 46% |
| Floren | 9/10 | 6592 days | 46% |
| Killerblow | 10/10 | 6600 days | 46% |
| Lisbeth Johansson | 8/10 | 6705 days | 45% |
| TeamFlorida | 10/10 | 6840 days | 46% |
| John Beirne | 10/10 | 6857 days | 46% |
| Pete | 9/10 | 6857 days | 46% |
| Anne | 8/10 | 6857 days | 45% |
| Anna | 9/10 | 6862 days | 46% |
| Mitch | 8/10 | 6868 days | 45% |
| Ian | 9/10 | 6885 days | 46% |
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
-4.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
Balancing Adjustment
4.31% 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
80%
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.