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
79.59%
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 | 3377 days | 97% |
| J P Schurer | 7/10 | 3377 days | 97% |
| Dries | 9/10 | 3417 days | 100% |
| Jasmine Rogers | 10/10 | 3430 days | 100% |
| Sophie | 10/10 | 3437 days | 99% |
| Nicholas Strozza | 8/10 | 3470 days | 92% |
| Jill Stebbing | 9/10 | 3693 days | 63% |
| Lothen | 8/10 | 3714 days | 60% |
| Lea Watterson | 9/10 | 3736 days | 58% |
| James Esele | 7/10 | 3790 days | 46% |
| Philipp | 2/10 | 3798 days | 8% |
| Coralie Ambrosino | 8/10 | 4056 days | 15% |
| Christoph | 10/10 | 4059 days | 15% |
| Fanny DeBon | 8/10 | 4157 days | 1% |
| Hubert | 10/10 | 4167 days | 1% |
| Sagi | 2/10 | 4438 days | 3% |
| Henrik Suefke | 10/10 | 4456 days | 41% |
| Kiernan Matthew | 7/10 | 4461 days | 36% |
| Alexis Redor | 9/10 | 4465 days | 40% |
| Lars Borgaa | 4/10 | 4474 days | 17% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4768 days | 17% |
| Glenn Surzur | 4/10 | 4795 days | 17% |
| Michael Walker | 10/10 | 4801 days | 41% |
| Lorraine Walker | 9/10 | 4801 days | 40% |
| Michael Nolan | 10/10 | 4827 days | 41% |
| Jim Woodruff | 10/10 | 4827 days | 41% |
| Lis Bon | 10/10 | 4858 days | 41% |
| Liam Day | 10/10 | 4875 days | 41% |
| Auger | 9/10 | 4896 days | 40% |
| Auger | 9/10 | 4896 days | 40% |
| C Schaap | 8/10 | 4900 days | 39% |
| Marjo Cousijn | 9/10 | 4906 days | 40% |
| gareth williams | 5/10 | 4950 days | 24% |
| Dagette | 8/10 | 4950 days | 39% |
| Wright | 10/10 | 5168 days | 41% |
| Emma Bagguley | 4/10 | 5171 days | 17% |
| Hazel & Alan Damerell | 10/10 | 5175 days | 41% |
| Michael & Rosemary Smith | 9/10 | 5179 days | 40% |
| Koster | 10/10 | 5179 days | 41% |
| John A Jerome | 6/10 | 5179 days | 31% |
| Katrawa | 5/10 | 5186 days | 24% |
| Jensen Bresbenbeek | 7/10 | 5256 days | 36% |
| Rebecca & Hugh Small | 5/10 | 5265 days | 24% |
| Steve | 3/10 | 5269 days | 9% |
| topsy08 | 7/10 | 5499 days | 36% |
| Gunter | 9/10 | 5513 days | 40% |
| Tim Laurent | 5/10 | 5521 days | 24% |
| Keith Ogley | 6/10 | 5524 days | 31% |
| Lynda Hutchins | 10/10 | 5524 days | 41% |
| Louise van der Hyden | 4/10 | 5528 days | 17% |
| Katie Mitchell | 9/10 | 5530 days | 40% |
| Gerhard | 8/10 | 5531 days | 39% |
| Kasten | 8/10 | 5532 days | 39% |
| C P Lawrence | 4/10 | 5534 days | 17% |
| Bucher Weruer | 9/10 | 5534 days | 40% |
| Naomi Kosteaman | 9/10 | 5534 days | 40% |
| Rian Bach | 5/10 | 5536 days | 24% |
| Josef & Christine Evers | 8/10 | 5539 days | 39% |
| Frank Schedler | 5/10 | 5541 days | 24% |
| Gerd Pagel | 7/10 | 5543 days | 36% |
| Charlie | 9/10 | 5544 days | 40% |
| Dana Pagliarini | 5/10 | 5546 days | 24% |
| Andy Martin | 8/10 | 5547 days | 39% |
| Julia | 5/10 | 5550 days | 24% |
| Doris Neuber | 7/10 | 5557 days | 36% |
| Teknik151 | 4/10 | 5558 days | 17% |
| Warris2500 | 4/10 | 5742 days | 17% |
| Versteeg | 7/10 | 5816 days | 36% |
| Victoria Slater | 6/10 | 5869 days | 31% |
| Bowness | 10/10 | 5882 days | 41% |
| David B | 9/10 | 5890 days | 40% |
| Sievers | 9/10 | 5898 days | 40% |
| Don & Alice | 9/10 | 5899 days | 40% |
| Amanda Iavarone | 10/10 | 5901 days | 41% |
| Sheila Morgan | 10/10 | 5904 days | 41% |
| Wilbert Germ | 9/10 | 5908 days | 40% |
| Ronny | 6/10 | 5909 days | 31% |
| Annette Schmitt | 4/10 | 5917 days | 17% |
| Annie | 7/10 | 5917 days | 36% |
| Nadine Schaee | 6/10 | 5920 days | 31% |
| Terry Phillips | 8/10 | 5920 days | 39% |
| Chance McGuire | 10/10 | 5923 days | 41% |
| Richard Pearson | 6/10 | 5933 days | 31% |
| cees juffermans | 3/10 | 5936 days | 9% |
| wenerz | 1/10 | 5970 days | 0% |
| Werner Zuis | 1/10 | 5970 days | 0% |
| alasiac | 10/10 | 5985 days | 41% |
| Mark Jenkins | 5/10 | 5993 days | 24% |
| Silvana Thom | 10/10 | 5995 days | 41% |
| Alexis De Wilde | 7/10 | 5995 days | 36% |
| Cyriel Schacken | 7/10 | 5995 days | 36% |
| Simon Bartholomew | 10/10 | 5997 days | 41% |
| Marcel Schleinkcfer | 10/10 | 5997 days | 41% |
| Thorben Thede | 9/10 | 5997 days | 40% |
| Roma | 9/10 | 6008 days | 40% |
| brianp | 8/10 | 6101 days | 39% |
| Rose and Jess Damon and Esler | 6/10 | 6138 days | 31% |
| OliverG1 | 9/10 | 6217 days | 40% |
| Anji Sprinks | 8/10 | 6226 days | 39% |
| Ger | 6/10 | 6227 days | 31% |
| JanW | 8/10 | 6241 days | 39% |
| Ian | 8/10 | 6253 days | 39% |
| Tatjane | 2/10 | 6260 days | 3% |
| ChristineM | 10/10 | 6262 days | 41% |
| SebastianGermany1 | 9/10 | 6264 days | 40% |
| Paul | 9/10 | 6272 days | 40% |
| SiegfriedL | 10/10 | 6284 days | 41% |
| purplekat99 | 9/10 | 6319 days | 40% |
| Klaus | 7/10 | 6620 days | 36% |
| Volders | 10/10 | 6622 days | 41% |
| Dot & Gordon Quaid | 9/10 | 6636 days | 40% |
| Roger & Margaret | 8/10 | 6643 days | 39% |
| John Howlett | 7/10 | 6645 days | 36% |
| Dupre | 7/10 | 6698 days | 36% |
| Paul Cowie | 9/10 | 6704 days | 40% |
| Floren | 9/10 | 6718 days | 40% |
| Killerblow | 10/10 | 6727 days | 41% |
| Lisbeth Johansson | 8/10 | 6831 days | 39% |
| TeamFlorida | 10/10 | 6966 days | 41% |
| John Beirne | 10/10 | 6983 days | 41% |
| Pete | 9/10 | 6983 days | 40% |
| Anne | 8/10 | 6983 days | 39% |
| Anna | 9/10 | 6988 days | 40% |
| Mitch | 8/10 | 6994 days | 39% |
| Ian | 9/10 | 7011 days | 40% |
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
-3.34% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 70 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 | -3.29% |
| 198 | -3.30% |
| 199 | -3.32% |
| 200 | -3.34% |
| 201 | -3.35% |
| 202 | -3.37% |
| 203 | -3.39% |
| … | … |
Balancing Adjustment
4.18% 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.