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
79.64%
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 | 2861 days | 96% |
| J P Schurer | 7/10 | 2861 days | 96% |
| Dries | 9/10 | 2901 days | 100% |
| Jasmine Rogers | 10/10 | 2914 days | 100% |
| Sophie | 10/10 | 2921 days | 100% |
| Nicholas Strozza | 8/10 | 2954 days | 95% |
| Jill Stebbing | 9/10 | 3177 days | 81% |
| Lothen | 8/10 | 3198 days | 79% |
| Lea Watterson | 9/10 | 3220 days | 78% |
| James Esele | 7/10 | 3274 days | 70% |
| Philipp | 2/10 | 3282 days | 33% |
| Coralie Ambrosino | 8/10 | 3540 days | 56% |
| Christoph | 10/10 | 3543 days | 56% |
| Fanny DeBon | 8/10 | 3641 days | 49% |
| Hubert | 10/10 | 3651 days | 49% |
| Sagi | 2/10 | 3922 days | 13% |
| Henrik Suefke | 10/10 | 3940 days | 29% |
| Kiernan Matthew | 7/10 | 3945 days | 27% |
| Alexis Redor | 9/10 | 3949 days | 28% |
| Lars Borgaa | 4/10 | 3958 days | 18% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4252 days | 4% |
| Glenn Surzur | 4/10 | 4279 days | 3% |
| Michael Walker | 10/10 | 4285 days | 5% |
| Lorraine Walker | 9/10 | 4285 days | 5% |
| Michael Nolan | 10/10 | 4311 days | 3% |
| Jim Woodruff | 10/10 | 4311 days | 3% |
| Lis Bon | 10/10 | 4342 days | 1% |
| Liam Day | 10/10 | 4359 days | 0% |
| Auger | 9/10 | 4380 days | 34% |
| Auger | 9/10 | 4380 days | 34% |
| C Schaap | 8/10 | 4384 days | 33% |
| Marjo Cousijn | 9/10 | 4390 days | 34% |
| gareth williams | 5/10 | 4434 days | 26% |
| Dagette | 8/10 | 4434 days | 33% |
| Wright | 10/10 | 4652 days | 34% |
| Emma Bagguley | 4/10 | 4655 days | 22% |
| Hazel & Alan Damerell | 10/10 | 4659 days | 34% |
| Michael & Rosemary Smith | 9/10 | 4663 days | 34% |
| Koster | 10/10 | 4663 days | 34% |
| John A Jerome | 6/10 | 4663 days | 29% |
| Katrawa | 5/10 | 4670 days | 26% |
| Jensen Bresbenbeek | 7/10 | 4740 days | 31% |
| Rebecca & Hugh Small | 5/10 | 4749 days | 26% |
| Steve | 3/10 | 4753 days | 18% |
| topsy08 | 7/10 | 4983 days | 31% |
| Gunter | 9/10 | 4997 days | 34% |
| Tim Laurent | 5/10 | 5005 days | 26% |
| Keith Ogley | 6/10 | 5008 days | 29% |
| Lynda Hutchins | 10/10 | 5008 days | 34% |
| Louise van der Hyden | 4/10 | 5012 days | 22% |
| Katie Mitchell | 9/10 | 5014 days | 34% |
| Gerhard | 8/10 | 5015 days | 33% |
| Kasten | 8/10 | 5016 days | 33% |
| C P Lawrence | 4/10 | 5018 days | 22% |
| Bucher Weruer | 9/10 | 5018 days | 34% |
| Naomi Kosteaman | 9/10 | 5018 days | 34% |
| Rian Bach | 5/10 | 5020 days | 26% |
| Josef & Christine Evers | 8/10 | 5023 days | 33% |
| Frank Schedler | 5/10 | 5025 days | 26% |
| Gerd Pagel | 7/10 | 5027 days | 31% |
| Charlie | 9/10 | 5028 days | 34% |
| Dana Pagliarini | 5/10 | 5030 days | 26% |
| Andy Martin | 8/10 | 5031 days | 33% |
| Julia | 5/10 | 5034 days | 26% |
| Doris Neuber | 7/10 | 5041 days | 31% |
| Teknik151 | 4/10 | 5042 days | 22% |
| Warris2500 | 4/10 | 5226 days | 22% |
| Versteeg | 7/10 | 5300 days | 31% |
| Victoria Slater | 6/10 | 5353 days | 29% |
| Bowness | 10/10 | 5366 days | 34% |
| David B | 9/10 | 5374 days | 34% |
| Sievers | 9/10 | 5382 days | 34% |
| Don & Alice | 9/10 | 5383 days | 34% |
| Amanda Iavarone | 10/10 | 5385 days | 34% |
| Sheila Morgan | 10/10 | 5388 days | 34% |
| Wilbert Germ | 9/10 | 5392 days | 34% |
| Ronny | 6/10 | 5393 days | 29% |
| Annette Schmitt | 4/10 | 5401 days | 22% |
| Annie | 7/10 | 5401 days | 31% |
| Nadine Schaee | 6/10 | 5404 days | 29% |
| Terry Phillips | 8/10 | 5404 days | 33% |
| Chance McGuire | 10/10 | 5407 days | 34% |
| Richard Pearson | 6/10 | 5417 days | 29% |
| cees juffermans | 3/10 | 5420 days | 18% |
| wenerz | 1/10 | 5454 days | 13% |
| Werner Zuis | 1/10 | 5454 days | 13% |
| alasiac | 10/10 | 5469 days | 34% |
| Mark Jenkins | 5/10 | 5477 days | 26% |
| Silvana Thom | 10/10 | 5479 days | 34% |
| Alexis De Wilde | 7/10 | 5479 days | 31% |
| Cyriel Schacken | 7/10 | 5479 days | 31% |
| Simon Bartholomew | 10/10 | 5481 days | 34% |
| Marcel Schleinkcfer | 10/10 | 5481 days | 34% |
| Thorben Thede | 9/10 | 5481 days | 34% |
| Roma | 9/10 | 5492 days | 34% |
| brianp | 8/10 | 5585 days | 33% |
| Rose and Jess Damon and Esler | 6/10 | 5622 days | 29% |
| OliverG1 | 9/10 | 5701 days | 34% |
| Anji Sprinks | 8/10 | 5710 days | 33% |
| Ger | 6/10 | 5711 days | 29% |
| JanW | 8/10 | 5725 days | 33% |
| Ian | 8/10 | 5737 days | 33% |
| Tatjane | 2/10 | 5745 days | 15% |
| ChristineM | 10/10 | 5746 days | 34% |
| SebastianGermany1 | 9/10 | 5748 days | 34% |
| Paul | 9/10 | 5757 days | 34% |
| SiegfriedL | 10/10 | 5768 days | 34% |
| purplekat99 | 9/10 | 5803 days | 34% |
| Klaus | 7/10 | 6104 days | 31% |
| Volders | 10/10 | 6106 days | 34% |
| Dot & Gordon Quaid | 9/10 | 6120 days | 34% |
| Roger & Margaret | 8/10 | 6127 days | 33% |
| John Howlett | 7/10 | 6129 days | 31% |
| Dupre | 7/10 | 6182 days | 31% |
| Paul Cowie | 9/10 | 6188 days | 34% |
| Floren | 9/10 | 6202 days | 34% |
| Killerblow | 10/10 | 6211 days | 34% |
| Lisbeth Johansson | 8/10 | 6315 days | 33% |
| TeamFlorida | 10/10 | 6450 days | 34% |
| John Beirne | 10/10 | 6467 days | 34% |
| Pete | 9/10 | 6467 days | 34% |
| Anne | 8/10 | 6467 days | 33% |
| Anna | 9/10 | 6472 days | 34% |
| Mitch | 8/10 | 6478 days | 33% |
| Ian | 9/10 | 6495 days | 34% |
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 43 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 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
Balancing Adjustment
4.42% 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
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.