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 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
80.51%
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 | 121 days | 96% |
| Paul | 8/10 | 182 days | 100% |
| Rich | 7/10 | 274 days | 93% |
| Eline | 6/10 | 365 days | 83% |
| Laurie | 9/10 | 396 days | 94% |
| Hannah | 10/10 | 424 days | 93% |
| Shaun | 10/10 | 424 days | 93% |
| Anne | 8/10 | 455 days | 90% |
| Fredrik | 6/10 | 455 days | 79% |
| Nicolas | 7/10 | 547 days | 80% |
| Hayley | 9/10 | 608 days | 81% |
| Lindsay Byrnes | 8/10 | 730 days | 71% |
| Fabienne | 8/10 | 761 days | 68% |
| Ian Garcia | 8/10 | 790 days | 66% |
| Tine Warner | 9/10 | 821 days | 63% |
| Joel Fryett | 6/10 | 821 days | 55% |
| Loam | 6/10 | 821 days | 55% |
| M.K. | 9/10 | 913 days | 54% |
| Ryli West | 8/10 | 1096 days | 36% |
| Steve | 9/10 | 1127 days | 34% |
| Jake | 10/10 | 1155 days | 32% |
| Arie | 7/10 | 1186 days | 27% |
| Julia | 9/10 | 1217 days | 27% |
| Debby | 9/10 | 1247 days | 25% |
| Lothar Valentijn | 10/10 | 1247 days | 25% |
| Sarah | 9/10 | 1247 days | 25% |
| Colin | 8/10 | 1278 days | 22% |
| Lisa | 10/10 | 1400 days | 16% |
| Anne S | 9/10 | 1492 days | 12% |
| Ana and Rob | 8/10 | 2069 days | 5% |
| Sandy | 9/10 | 2100 days | 5% |
| Maria | 6/10 | 2222 days | 4% |
| M&P | 8/10 | 2251 days | 4% |
| Tom Z. | 9/10 | 2282 days | 4% |
| Tea | 8/10 | 2313 days | 4% |
| Sue W | 8/10 | 2343 days | 4% |
| Maryline | 9/10 | 2557 days | 4% |
| Esa | 7/10 | 2588 days | 3% |
| Vincent | 9/10 | 2588 days | 4% |
| TP&MM | 8/10 | 2588 days | 4% |
| Chantal | 10/10 | 2678 days | 3% |
| James & Kerry | 9/10 | 2708 days | 3% |
| Melinda Pyke | 8/10 | 2769 days | 3% |
| Grizzly Girl | 8/10 | 2769 days | 3% |
| Esteban | 8/10 | 2922 days | 3% |
| Bridget Cumming | 7/10 | 2960 days | 3% |
| M A Pelton | 10/10 | 2963 days | 3% |
| UK 50-something couple | 8/10 | 2981 days | 3% |
| Suzanne Wijsman | 9/10 | 2989 days | 3% |
| Sandra Jeffers | 6/10 | 3089 days | 2% |
| Howard Morris | 8/10 | 3105 days | 2% |
| Geoff Steele | 7/10 | 3133 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3360 days | 2% |
| sara hoeflaken | 8/10 | 3374 days | 2% |
| Roeland Driessen | 8/10 | 3376 days | 2% |
| Cyrielle Vallat | 6/10 | 3432 days | 2% |
| Susan H | 10/10 | 3471 days | 2% |
| Ruth Hernandez | 8/10 | 3473 days | 2% |
| Kate | 8/10 | 3606 days | 1% |
| Joanna du Toit | 7/10 | 3763 days | 1% |
| Yvonne Wu | 8/10 | 3987 days | 1% |
| Soizic Vandermeersch | 7/10 | 4010 days | 1% |
| Rossco | 6/10 | 4017 days | 1% |
| Erica b | 7/10 | 4017 days | 1% |
| Larry Dashiell | 9/10 | 4048 days | 1% |
| June Harris | 6/10 | 4107 days | 0% |
| Matthias Thorn | 7/10 | 4107 days | 0% |
| Richard | 8/10 | 4292 days | 0% |
| travelscot | 9/10 | 4353 days | 0% |
| Patricia Revel | 9/10 | 4384 days | 1% |
| Katarina | 10/10 | 4385 days | 1% |
| Gillian Scott | 7/10 | 4412 days | 1% |
| Julie Robinson | 7/10 | 4429 days | 1% |
| Julien de la lande | 6/10 | 4455 days | 1% |
| Wouter Bosch | 7/10 | 4455 days | 1% |
| Aude Moulin | 5/10 | 4455 days | 1% |
| Maya Bakker-deDreu | 8/10 | 4463 days | 1% |
| JoMary Smith | 8/10 | 4473 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4504 days | 1% |
| Grantygrant | 7/10 | 4748 days | 1% |
| Bertiethebus | 8/10 | 4779 days | 1% |
| Kadyan | 6/10 | 4779 days | 1% |
| Malgorzata | 6/10 | 4783 days | 1% |
| Moni Sangoi | 7/10 | 4807 days | 1% |
| Puma17 | 7/10 | 4838 days | 1% |
| David | 5/10 | 4838 days | 1% |
| Auger | 10/10 | 4876 days | 1% |
| Auger | 10/10 | 4876 days | 1% |
| Mike & Jennie | 8/10 | 5155 days | 1% |
| Balonno | 3/10 | 5204 days | 1% |
| lydzb | 6/10 | 5235 days | 1% |
| ncopas | 1/10 | 5235 days | 0% |
| Annie Breton | 6/10 | 5493 days | 1% |
| Robin Smith | 10/10 | 5496 days | 1% |
| Jim & Rebecca | 9/10 | 5502 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5503 days | 1% |
| Chris | 8/10 | 5504 days | 1% |
| LandJ | 9/10 | 5510 days | 1% |
| Manfred & Gabi | 9/10 | 5521 days | 1% |
| Frank Lehe | 8/10 | 5523 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5526 days | 1% |
| Roy Seymour | 8/10 | 5529 days | 1% |
| Sabine | 9/10 | 5788 days | 1% |
| Anna | 9/10 | 5793 days | 1% |
| Siebels Wilke | 8/10 | 5807 days | 1% |
| Peter Aerborg | 9/10 | 5811 days | 1% |
| Peter Brown | 10/10 | 5871 days | 1% |
| John Cox | 8/10 | 5881 days | 1% |
| Helmet Paula | 3/10 | 5888 days | 0% |
| Lorena | 10/10 | 5903 days | 1% |
| Alexis De Wilde | 9/10 | 5975 days | 1% |
| Decuq | 7/10 | 5976 days | 1% |
| Vivien Williams | 10/10 | 6227 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
-1.72% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 60 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 92 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 89 | -1.66% |
| 90 | -1.68% |
| 91 | -1.70% |
| 92 | -1.72% |
| 93 | -1.74% |
| 94 | -1.76% |
| 95 | -1.77% |
| … | … |
Balancing Adjustment
3.35% 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.