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 114 reviews. There are 113 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 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
80.32%
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 | 201 days | 97% |
| Paul | 8/10 | 262 days | 100% |
| Rich | 7/10 | 354 days | 92% |
| Eline | 6/10 | 445 days | 81% |
| Laurie | 9/10 | 476 days | 92% |
| Hannah | 10/10 | 504 days | 91% |
| Shaun | 10/10 | 504 days | 91% |
| Anne | 8/10 | 535 days | 87% |
| Fredrik | 6/10 | 535 days | 77% |
| Nicolas | 7/10 | 627 days | 77% |
| Hayley | 9/10 | 688 days | 77% |
| Lindsay Byrnes | 8/10 | 810 days | 65% |
| Fabienne | 8/10 | 841 days | 62% |
| Ian Garcia | 8/10 | 870 days | 59% |
| Tine Warner | 9/10 | 901 days | 56% |
| Joel Fryett | 6/10 | 901 days | 49% |
| Loam | 6/10 | 901 days | 49% |
| M.K. | 9/10 | 993 days | 47% |
| Ryli West | 8/10 | 1176 days | 30% |
| Steve | 9/10 | 1207 days | 28% |
| Jake | 10/10 | 1235 days | 26% |
| Arie | 7/10 | 1266 days | 23% |
| Julia | 9/10 | 1297 days | 22% |
| Debby | 9/10 | 1327 days | 20% |
| Lothar Valentijn | 10/10 | 1327 days | 20% |
| Sarah | 9/10 | 1327 days | 20% |
| Colin | 8/10 | 1358 days | 18% |
| Lisa | 10/10 | 1480 days | 13% |
| Anne S | 9/10 | 1572 days | 9% |
| Ana and Rob | 8/10 | 2149 days | 5% |
| Sandy | 9/10 | 2180 days | 5% |
| Maria | 6/10 | 2302 days | 4% |
| M&P | 8/10 | 2331 days | 4% |
| Tom Z. | 9/10 | 2362 days | 4% |
| Tea | 8/10 | 2393 days | 4% |
| Sue W | 8/10 | 2423 days | 4% |
| Maryline | 9/10 | 2637 days | 4% |
| Esa | 7/10 | 2668 days | 3% |
| Vincent | 9/10 | 2668 days | 4% |
| TP&MM | 8/10 | 2668 days | 3% |
| Chantal | 10/10 | 2758 days | 3% |
| James & Kerry | 9/10 | 2788 days | 3% |
| Melinda Pyke | 8/10 | 2849 days | 3% |
| Grizzly Girl | 8/10 | 2849 days | 3% |
| Esteban | 8/10 | 3002 days | 3% |
| Bridget Cumming | 7/10 | 3040 days | 3% |
| M A Pelton | 10/10 | 3043 days | 3% |
| UK 50-something couple | 8/10 | 3061 days | 3% |
| Suzanne Wijsman | 9/10 | 3069 days | 3% |
| Sandra Jeffers | 6/10 | 3169 days | 2% |
| Howard Morris | 8/10 | 3185 days | 2% |
| Geoff Steele | 7/10 | 3213 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3440 days | 2% |
| sara hoeflaken | 8/10 | 3454 days | 2% |
| Roeland Driessen | 8/10 | 3456 days | 2% |
| Cyrielle Vallat | 6/10 | 3512 days | 2% |
| Susan H | 10/10 | 3551 days | 2% |
| Ruth Hernandez | 8/10 | 3553 days | 2% |
| Kate | 8/10 | 3686 days | 1% |
| Joanna du Toit | 7/10 | 3843 days | 1% |
| Yvonne Wu | 8/10 | 4067 days | 1% |
| Soizic Vandermeersch | 7/10 | 4090 days | 1% |
| Rossco | 6/10 | 4097 days | 0% |
| Erica b | 7/10 | 4097 days | 1% |
| Larry Dashiell | 9/10 | 4128 days | 1% |
| June Harris | 6/10 | 4187 days | 0% |
| Matthias Thorn | 7/10 | 4187 days | 0% |
| Richard | 8/10 | 4372 days | 0% |
| travelscot | 9/10 | 4433 days | 1% |
| Patricia Revel | 9/10 | 4464 days | 1% |
| Katarina | 10/10 | 4465 days | 1% |
| Gillian Scott | 7/10 | 4492 days | 1% |
| Julie Robinson | 7/10 | 4509 days | 1% |
| Julien de la lande | 6/10 | 4535 days | 1% |
| Wouter Bosch | 7/10 | 4535 days | 1% |
| Aude Moulin | 5/10 | 4535 days | 1% |
| Maya Bakker-deDreu | 8/10 | 4543 days | 1% |
| JoMary Smith | 8/10 | 4553 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4584 days | 1% |
| Grantygrant | 7/10 | 4828 days | 1% |
| Bertiethebus | 8/10 | 4859 days | 1% |
| Kadyan | 6/10 | 4859 days | 1% |
| Malgorzata | 6/10 | 4863 days | 1% |
| Moni Sangoi | 7/10 | 4887 days | 1% |
| Puma17 | 7/10 | 4918 days | 1% |
| David | 5/10 | 4918 days | 1% |
| Auger | 10/10 | 4956 days | 1% |
| Auger | 10/10 | 4956 days | 1% |
| Mike & Jennie | 8/10 | 5235 days | 1% |
| Balonno | 3/10 | 5284 days | 1% |
| lydzb | 6/10 | 5315 days | 1% |
| ncopas | 1/10 | 5315 days | 0% |
| Annie Breton | 6/10 | 5573 days | 1% |
| Robin Smith | 10/10 | 5576 days | 1% |
| Jim & Rebecca | 9/10 | 5582 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5583 days | 1% |
| Chris | 8/10 | 5584 days | 1% |
| LandJ | 9/10 | 5590 days | 1% |
| Manfred & Gabi | 9/10 | 5601 days | 1% |
| Frank Lehe | 8/10 | 5603 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5606 days | 1% |
| Roy Seymour | 8/10 | 5609 days | 1% |
| Sabine | 9/10 | 5868 days | 1% |
| Anna | 9/10 | 5873 days | 1% |
| Siebels Wilke | 8/10 | 5887 days | 1% |
| Peter Aerborg | 9/10 | 5891 days | 1% |
| Peter Brown | 10/10 | 5951 days | 1% |
| John Cox | 8/10 | 5961 days | 1% |
| Helmet Paula | 3/10 | 5968 days | 0% |
| Lorena | 10/10 | 5983 days | 1% |
| Alexis De Wilde | 9/10 | 6055 days | 1% |
| Decuq | 7/10 | 6056 days | 1% |
| Vivien Williams | 10/10 | 6307 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
-1.85% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 118 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 172 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 169 | -1.82% |
| 170 | -1.83% |
| 171 | -1.84% |
| 172 | -1.85% |
| 173 | -1.86% |
| 174 | -1.87% |
| 175 | -1.88% |
| … | … |
Balancing Adjustment
3.45% 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.