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.
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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
80.04%
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 | 2995 days | 96% |
| J P Schurer | 7/10 | 2995 days | 96% |
| Dries | 9/10 | 3035 days | 100% |
| Jasmine Rogers | 10/10 | 3048 days | 100% |
| Sophie | 10/10 | 3055 days | 99% |
| Nicholas Strozza | 8/10 | 3088 days | 94% |
| Jill Stebbing | 9/10 | 3311 days | 77% |
| Lothen | 8/10 | 3332 days | 74% |
| Lea Watterson | 9/10 | 3354 days | 73% |
| James Esele | 7/10 | 3408 days | 64% |
| Philipp | 2/10 | 3416 days | 25% |
| Coralie Ambrosino | 8/10 | 3674 days | 46% |
| Christoph | 10/10 | 3677 days | 47% |
| Fanny DeBon | 8/10 | 3775 days | 38% |
| Hubert | 10/10 | 3785 days | 38% |
| Sagi | 2/10 | 4056 days | 0% |
| Henrik Suefke | 10/10 | 4074 days | 13% |
| Kiernan Matthew | 7/10 | 4079 days | 11% |
| Alexis Redor | 9/10 | 4083 days | 12% |
| Lars Borgaa | 4/10 | 4092 days | 3% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4386 days | 16% |
| Glenn Surzur | 4/10 | 4413 days | 16% |
| Michael Walker | 10/10 | 4419 days | 31% |
| Lorraine Walker | 9/10 | 4419 days | 30% |
| Michael Nolan | 10/10 | 4445 days | 31% |
| Jim Woodruff | 10/10 | 4445 days | 31% |
| Lis Bon | 10/10 | 4476 days | 31% |
| Liam Day | 10/10 | 4493 days | 31% |
| Auger | 9/10 | 4514 days | 30% |
| Auger | 9/10 | 4514 days | 30% |
| C Schaap | 8/10 | 4518 days | 30% |
| Marjo Cousijn | 9/10 | 4524 days | 30% |
| gareth williams | 5/10 | 4568 days | 20% |
| Dagette | 8/10 | 4568 days | 30% |
| Wright | 10/10 | 4786 days | 31% |
| Emma Bagguley | 4/10 | 4789 days | 16% |
| Hazel & Alan Damerell | 10/10 | 4793 days | 31% |
| Michael & Rosemary Smith | 9/10 | 4797 days | 30% |
| Koster | 10/10 | 4797 days | 31% |
| John A Jerome | 6/10 | 4797 days | 25% |
| Katrawa | 5/10 | 4804 days | 20% |
| Jensen Bresbenbeek | 7/10 | 4874 days | 28% |
| Rebecca & Hugh Small | 5/10 | 4883 days | 20% |
| Steve | 3/10 | 4887 days | 11% |
| topsy08 | 7/10 | 5117 days | 28% |
| Gunter | 9/10 | 5131 days | 30% |
| Tim Laurent | 5/10 | 5139 days | 20% |
| Keith Ogley | 6/10 | 5142 days | 25% |
| Lynda Hutchins | 10/10 | 5142 days | 31% |
| Louise van der Hyden | 4/10 | 5146 days | 16% |
| Katie Mitchell | 9/10 | 5148 days | 30% |
| Gerhard | 8/10 | 5149 days | 30% |
| Kasten | 8/10 | 5150 days | 30% |
| C P Lawrence | 4/10 | 5152 days | 16% |
| Bucher Weruer | 9/10 | 5152 days | 30% |
| Naomi Kosteaman | 9/10 | 5152 days | 30% |
| Rian Bach | 5/10 | 5154 days | 20% |
| Josef & Christine Evers | 8/10 | 5157 days | 30% |
| Frank Schedler | 5/10 | 5159 days | 20% |
| Gerd Pagel | 7/10 | 5161 days | 28% |
| Charlie | 9/10 | 5162 days | 30% |
| Dana Pagliarini | 5/10 | 5164 days | 20% |
| Andy Martin | 8/10 | 5165 days | 30% |
| Julia | 5/10 | 5168 days | 20% |
| Doris Neuber | 7/10 | 5175 days | 28% |
| Teknik151 | 4/10 | 5176 days | 16% |
| Warris2500 | 4/10 | 5360 days | 16% |
| Versteeg | 7/10 | 5434 days | 28% |
| Victoria Slater | 6/10 | 5487 days | 25% |
| Bowness | 10/10 | 5500 days | 31% |
| David B | 9/10 | 5508 days | 30% |
| Sievers | 9/10 | 5516 days | 30% |
| Don & Alice | 9/10 | 5517 days | 30% |
| Amanda Iavarone | 10/10 | 5519 days | 31% |
| Sheila Morgan | 10/10 | 5522 days | 31% |
| Wilbert Germ | 9/10 | 5526 days | 30% |
| Ronny | 6/10 | 5527 days | 25% |
| Annette Schmitt | 4/10 | 5535 days | 16% |
| Annie | 7/10 | 5535 days | 28% |
| Nadine Schaee | 6/10 | 5538 days | 25% |
| Terry Phillips | 8/10 | 5538 days | 30% |
| Chance McGuire | 10/10 | 5541 days | 31% |
| Richard Pearson | 6/10 | 5551 days | 25% |
| cees juffermans | 3/10 | 5554 days | 11% |
| wenerz | 1/10 | 5588 days | 5% |
| Werner Zuis | 1/10 | 5588 days | 5% |
| alasiac | 10/10 | 5603 days | 31% |
| Mark Jenkins | 5/10 | 5611 days | 20% |
| Silvana Thom | 10/10 | 5613 days | 31% |
| Alexis De Wilde | 7/10 | 5613 days | 28% |
| Cyriel Schacken | 7/10 | 5613 days | 28% |
| Simon Bartholomew | 10/10 | 5615 days | 31% |
| Marcel Schleinkcfer | 10/10 | 5615 days | 31% |
| Thorben Thede | 9/10 | 5615 days | 30% |
| Roma | 9/10 | 5626 days | 30% |
| brianp | 8/10 | 5719 days | 30% |
| Rose and Jess Damon and Esler | 6/10 | 5756 days | 25% |
| OliverG1 | 9/10 | 5835 days | 30% |
| Anji Sprinks | 8/10 | 5844 days | 30% |
| Ger | 6/10 | 5845 days | 25% |
| JanW | 8/10 | 5859 days | 30% |
| Ian | 8/10 | 5871 days | 30% |
| Tatjane | 2/10 | 5878 days | 7% |
| ChristineM | 10/10 | 5880 days | 31% |
| SebastianGermany1 | 9/10 | 5882 days | 30% |
| Paul | 9/10 | 5890 days | 30% |
| SiegfriedL | 10/10 | 5902 days | 31% |
| purplekat99 | 9/10 | 5937 days | 30% |
| Klaus | 7/10 | 6238 days | 28% |
| Volders | 10/10 | 6240 days | 31% |
| Dot & Gordon Quaid | 9/10 | 6254 days | 30% |
| Roger & Margaret | 8/10 | 6261 days | 30% |
| John Howlett | 7/10 | 6263 days | 28% |
| Dupre | 7/10 | 6316 days | 28% |
| Paul Cowie | 9/10 | 6322 days | 30% |
| Floren | 9/10 | 6336 days | 30% |
| Killerblow | 10/10 | 6345 days | 31% |
| Lisbeth Johansson | 8/10 | 6449 days | 30% |
| TeamFlorida | 10/10 | 6584 days | 31% |
| John Beirne | 10/10 | 6601 days | 31% |
| Pete | 9/10 | 6601 days | 30% |
| Anne | 8/10 | 6601 days | 30% |
| Anna | 9/10 | 6606 days | 30% |
| Mitch | 8/10 | 6612 days | 30% |
| Ian | 9/10 | 6629 days | 30% |
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
-3.68% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 61 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 | -3.63% |
| 198 | -3.65% |
| 199 | -3.66% |
| 200 | -3.68% |
| 201 | -3.70% |
| 202 | -3.72% |
| 203 | -3.74% |
| … | … |
Balancing Adjustment
4.14% 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.