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
80.41%
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 | 161 days | 96% |
| Paul | 8/10 | 222 days | 100% |
| Rich | 7/10 | 314 days | 92% |
| Eline | 6/10 | 405 days | 82% |
| Laurie | 9/10 | 436 days | 93% |
| Hannah | 10/10 | 464 days | 92% |
| Shaun | 10/10 | 464 days | 92% |
| Anne | 8/10 | 495 days | 88% |
| Fredrik | 6/10 | 495 days | 78% |
| Nicolas | 7/10 | 587 days | 78% |
| Hayley | 9/10 | 648 days | 79% |
| Lindsay Byrnes | 8/10 | 770 days | 68% |
| Fabienne | 8/10 | 801 days | 65% |
| Ian Garcia | 8/10 | 830 days | 62% |
| Tine Warner | 9/10 | 861 days | 60% |
| Joel Fryett | 6/10 | 861 days | 52% |
| Loam | 6/10 | 861 days | 52% |
| M.K. | 9/10 | 953 days | 50% |
| Ryli West | 8/10 | 1136 days | 33% |
| Steve | 9/10 | 1167 days | 31% |
| Jake | 10/10 | 1195 days | 29% |
| Arie | 7/10 | 1226 days | 25% |
| Julia | 9/10 | 1257 days | 24% |
| Debby | 9/10 | 1287 days | 22% |
| Lothar Valentijn | 10/10 | 1287 days | 23% |
| Sarah | 9/10 | 1287 days | 22% |
| Colin | 8/10 | 1318 days | 20% |
| Lisa | 10/10 | 1440 days | 14% |
| Anne S | 9/10 | 1532 days | 10% |
| Ana and Rob | 8/10 | 2109 days | 4% |
| Sandy | 9/10 | 2140 days | 4% |
| Maria | 6/10 | 2262 days | 4% |
| M&P | 8/10 | 2291 days | 4% |
| Tom Z. | 9/10 | 2322 days | 4% |
| Tea | 8/10 | 2353 days | 4% |
| Sue W | 8/10 | 2383 days | 4% |
| Maryline | 9/10 | 2597 days | 4% |
| Esa | 7/10 | 2628 days | 3% |
| Vincent | 9/10 | 2628 days | 3% |
| TP&MM | 8/10 | 2628 days | 3% |
| Chantal | 10/10 | 2718 days | 3% |
| James & Kerry | 9/10 | 2748 days | 3% |
| Melinda Pyke | 8/10 | 2809 days | 3% |
| Grizzly Girl | 8/10 | 2809 days | 3% |
| Esteban | 8/10 | 2962 days | 3% |
| Bridget Cumming | 7/10 | 3000 days | 3% |
| M A Pelton | 10/10 | 3003 days | 3% |
| UK 50-something couple | 8/10 | 3021 days | 3% |
| Suzanne Wijsman | 9/10 | 3029 days | 3% |
| Sandra Jeffers | 6/10 | 3129 days | 2% |
| Howard Morris | 8/10 | 3145 days | 2% |
| Geoff Steele | 7/10 | 3173 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3400 days | 2% |
| sara hoeflaken | 8/10 | 3414 days | 2% |
| Roeland Driessen | 8/10 | 3416 days | 2% |
| Cyrielle Vallat | 6/10 | 3472 days | 2% |
| Susan H | 10/10 | 3511 days | 2% |
| Ruth Hernandez | 8/10 | 3513 days | 2% |
| Kate | 8/10 | 3646 days | 1% |
| Joanna du Toit | 7/10 | 3803 days | 1% |
| Yvonne Wu | 8/10 | 4027 days | 1% |
| Soizic Vandermeersch | 7/10 | 4050 days | 1% |
| Rossco | 6/10 | 4057 days | 0% |
| Erica b | 7/10 | 4057 days | 1% |
| Larry Dashiell | 9/10 | 4088 days | 0% |
| June Harris | 6/10 | 4147 days | 0% |
| Matthias Thorn | 7/10 | 4147 days | 0% |
| Richard | 8/10 | 4332 days | 0% |
| travelscot | 9/10 | 4393 days | 1% |
| Patricia Revel | 9/10 | 4424 days | 1% |
| Katarina | 10/10 | 4425 days | 1% |
| Gillian Scott | 7/10 | 4452 days | 1% |
| Julie Robinson | 7/10 | 4469 days | 1% |
| Julien de la lande | 6/10 | 4495 days | 1% |
| Wouter Bosch | 7/10 | 4495 days | 1% |
| Aude Moulin | 5/10 | 4495 days | 0% |
| Maya Bakker-deDreu | 8/10 | 4503 days | 1% |
| JoMary Smith | 8/10 | 4513 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4544 days | 1% |
| Grantygrant | 7/10 | 4788 days | 1% |
| Bertiethebus | 8/10 | 4819 days | 1% |
| Kadyan | 6/10 | 4819 days | 1% |
| Malgorzata | 6/10 | 4823 days | 1% |
| Moni Sangoi | 7/10 | 4847 days | 1% |
| Puma17 | 7/10 | 4878 days | 1% |
| David | 5/10 | 4878 days | 1% |
| Auger | 10/10 | 4916 days | 1% |
| Auger | 10/10 | 4916 days | 1% |
| Mike & Jennie | 8/10 | 5195 days | 1% |
| Balonno | 3/10 | 5244 days | 0% |
| lydzb | 6/10 | 5275 days | 1% |
| ncopas | 1/10 | 5275 days | 0% |
| Annie Breton | 6/10 | 5533 days | 1% |
| Robin Smith | 10/10 | 5536 days | 1% |
| Jim & Rebecca | 9/10 | 5542 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5543 days | 1% |
| Chris | 8/10 | 5544 days | 1% |
| LandJ | 9/10 | 5550 days | 1% |
| Manfred & Gabi | 9/10 | 5561 days | 1% |
| Frank Lehe | 8/10 | 5563 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5566 days | 1% |
| Roy Seymour | 8/10 | 5569 days | 1% |
| Sabine | 9/10 | 5828 days | 1% |
| Anna | 9/10 | 5833 days | 1% |
| Siebels Wilke | 8/10 | 5847 days | 1% |
| Peter Aerborg | 9/10 | 5851 days | 1% |
| Peter Brown | 10/10 | 5911 days | 1% |
| John Cox | 8/10 | 5921 days | 1% |
| Helmet Paula | 3/10 | 5928 days | 0% |
| Lorena | 10/10 | 5943 days | 1% |
| Alexis De Wilde | 9/10 | 6015 days | 1% |
| Decuq | 7/10 | 6016 days | 1% |
| Vivien Williams | 10/10 | 6267 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
-1.91% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 87 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 132 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 129 | -1.86% |
| 130 | -1.88% |
| 131 | -1.89% |
| 132 | -1.91% |
| 133 | -1.92% |
| 134 | -1.94% |
| 135 | -1.95% |
| … | … |
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.