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 Portobello Village Tourist Park.
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.
Portobello Village Tourist Park
Valid Reviews
113 Valid Reviews
The Portobello Village Tourist Park experience has a total of 113 valid reviews. There are no invalid reviews 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 113 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 15 |
|
13% |
| 9/10 | 25 |
|
22% |
| 8/10 | 34 |
|
30% |
| 7/10 | 19 |
|
17% |
| 6/10 | 14 |
|
12% |
| 5/10 | 3 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 2 |
|
2% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
1% |
78.41% Average
The raw data average (mean) for all the Portobello Village Tourist Park valid reviews is 78.41% and is based on 113 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
30 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 113 valid reviews, the experience has 30 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 30 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 6 |
|
20% |
| 9/10 | 7 |
|
23% |
| 8/10 | 9 |
|
30% |
| 7/10 | 3 |
|
10% |
| 6/10 | 3 |
|
10% |
| 5/10 | 1 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
3% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
80.67% Average
The raw data average (mean) for all the Portobello Village Tourist Park face-to-face reviews is 80.67% and is based on 30 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
80.36%
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 |
|---|---|---|---|
| cirefice bernard | 7/10 | 180 days | 96% |
| Paul | 8/10 | 241 days | 100% |
| Rich | 7/10 | 333 days | 92% |
| Eline | 6/10 | 424 days | 82% |
| Laurie | 9/10 | 455 days | 92% |
| Hannah | 10/10 | 483 days | 91% |
| Shaun | 10/10 | 483 days | 91% |
| Anne | 8/10 | 514 days | 88% |
| Fredrik | 6/10 | 514 days | 77% |
| Nicolas | 7/10 | 606 days | 78% |
| Hayley | 9/10 | 667 days | 78% |
| Lindsay Byrnes | 8/10 | 789 days | 67% |
| Fabienne | 8/10 | 820 days | 64% |
| Ian Garcia | 8/10 | 849 days | 61% |
| Tine Warner | 9/10 | 880 days | 58% |
| Joel Fryett | 6/10 | 880 days | 51% |
| Loam | 6/10 | 880 days | 51% |
| M.K. | 9/10 | 972 days | 49% |
| Ryli West | 8/10 | 1155 days | 32% |
| Steve | 9/10 | 1186 days | 30% |
| Jake | 10/10 | 1214 days | 28% |
| Arie | 7/10 | 1245 days | 24% |
| Julia | 9/10 | 1276 days | 23% |
| Debby | 9/10 | 1306 days | 21% |
| Lothar Valentijn | 10/10 | 1306 days | 21% |
| Sarah | 9/10 | 1306 days | 21% |
| Colin | 8/10 | 1337 days | 19% |
| Lisa | 10/10 | 1459 days | 13% |
| Anne S | 9/10 | 1551 days | 10% |
| Ana and Rob | 8/10 | 2128 days | 5% |
| Sandy | 9/10 | 2159 days | 4% |
| Maria | 6/10 | 2281 days | 4% |
| M&P | 8/10 | 2310 days | 4% |
| Tom Z. | 9/10 | 2341 days | 4% |
| Tea | 8/10 | 2372 days | 4% |
| Sue W | 8/10 | 2402 days | 4% |
| Maryline | 9/10 | 2616 days | 4% |
| Esa | 7/10 | 2647 days | 3% |
| Vincent | 9/10 | 2647 days | 3% |
| TP&MM | 8/10 | 2647 days | 3% |
| Chantal | 10/10 | 2737 days | 3% |
| James & Kerry | 9/10 | 2767 days | 3% |
| Melinda Pyke | 8/10 | 2828 days | 3% |
| Grizzly Girl | 8/10 | 2828 days | 3% |
| Esteban | 8/10 | 2981 days | 3% |
| Bridget Cumming | 7/10 | 3019 days | 3% |
| M A Pelton | 10/10 | 3022 days | 3% |
| UK 50-something couple | 8/10 | 3040 days | 3% |
| Suzanne Wijsman | 9/10 | 3048 days | 3% |
| Sandra Jeffers | 6/10 | 3148 days | 2% |
| Howard Morris | 8/10 | 3164 days | 2% |
| Geoff Steele | 7/10 | 3193 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3419 days | 2% |
| sara hoeflaken | 8/10 | 3433 days | 2% |
| Roeland Driessen | 8/10 | 3436 days | 2% |
| Cyrielle Vallat | 6/10 | 3491 days | 2% |
| Susan H | 10/10 | 3530 days | 2% |
| Ruth Hernandez | 8/10 | 3532 days | 2% |
| Kate | 8/10 | 3665 days | 1% |
| Joanna du Toit | 7/10 | 3822 days | 1% |
| Yvonne Wu | 8/10 | 4047 days | 1% |
| Soizic Vandermeersch | 7/10 | 4069 days | 1% |
| Rossco | 6/10 | 4077 days | 0% |
| Erica b | 7/10 | 4077 days | 1% |
| Larry Dashiell | 9/10 | 4108 days | 0% |
| June Harris | 6/10 | 4167 days | 0% |
| Matthias Thorn | 7/10 | 4167 days | 0% |
| Richard | 8/10 | 4351 days | 0% |
| travelscot | 9/10 | 4412 days | 1% |
| Patricia Revel | 9/10 | 4443 days | 1% |
| Katarina | 10/10 | 4444 days | 1% |
| Gillian Scott | 7/10 | 4471 days | 1% |
| Julie Robinson | 7/10 | 4488 days | 1% |
| Julien de la lande | 6/10 | 4514 days | 1% |
| Wouter Bosch | 7/10 | 4514 days | 1% |
| Aude Moulin | 5/10 | 4514 days | 1% |
| Maya Bakker-deDreu | 8/10 | 4522 days | 1% |
| JoMary Smith | 8/10 | 4532 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4563 days | 1% |
| Grantygrant | 7/10 | 4807 days | 1% |
| Bertiethebus | 8/10 | 4838 days | 1% |
| Kadyan | 6/10 | 4838 days | 1% |
| Malgorzata | 6/10 | 4842 days | 1% |
| Moni Sangoi | 7/10 | 4866 days | 1% |
| Puma17 | 7/10 | 4897 days | 1% |
| David | 5/10 | 4897 days | 1% |
| Auger | 10/10 | 4935 days | 1% |
| Auger | 10/10 | 4935 days | 1% |
| Mike & Jennie | 8/10 | 5214 days | 1% |
| Balonno | 3/10 | 5263 days | 1% |
| lydzb | 6/10 | 5294 days | 1% |
| ncopas | 1/10 | 5294 days | 0% |
| Annie Breton | 6/10 | 5552 days | 1% |
| Robin Smith | 10/10 | 5555 days | 1% |
| Jim & Rebecca | 9/10 | 5561 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5562 days | 1% |
| Chris | 8/10 | 5563 days | 1% |
| LandJ | 9/10 | 5569 days | 1% |
| Manfred & Gabi | 9/10 | 5580 days | 1% |
| Frank Lehe | 8/10 | 5582 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5585 days | 1% |
| Roy Seymour | 8/10 | 5588 days | 1% |
| Sabine | 9/10 | 5847 days | 1% |
| Anna | 9/10 | 5852 days | 1% |
| Siebels Wilke | 8/10 | 5866 days | 1% |
| Peter Aerborg | 9/10 | 5870 days | 1% |
| Peter Brown | 10/10 | 5930 days | 1% |
| John Cox | 8/10 | 5940 days | 1% |
| Helmet Paula | 3/10 | 5947 days | 0% |
| Lorena | 10/10 | 5962 days | 1% |
| Alexis De Wilde | 9/10 | 6034 days | 1% |
| Decuq | 7/10 | 6035 days | 1% |
| Vivien Williams | 10/10 | 6286 days | 1% |
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 Portobello Village Tourist Park experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-1.88% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 104 days. However the Portobello Village Tourist Park 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 Portobello Village Tourist Park experience has been adjusted for 151 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 148 | -1.84% |
| 149 | -1.86% |
| 150 | -1.87% |
| 151 | -1.88% |
| 152 | -1.89% |
| 153 | -1.91% |
| 154 | -1.92% |
| … | … |
Balancing Adjustment
3.44% 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
82%
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.