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
114 Valid Reviews
The Portobello Village Tourist Park experience has a total of 114 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 114 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 15 |
|
13% |
| 9/10 | 25 |
|
22% |
| 8/10 | 35 |
|
31% |
| 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% |
78.42% Average
The raw data average (mean) for all the Portobello Village Tourist Park valid reviews is 78.42% and is based on 114 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 114 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
80.16%
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 |
|---|---|---|---|
| India Cooper-Clark | 8/10 | 85 days | 100% |
| cirefice bernard | 7/10 | 267 days | 91% |
| Paul | 8/10 | 328 days | 94% |
| Rich | 7/10 | 420 days | 86% |
| Eline | 6/10 | 511 days | 75% |
| Laurie | 9/10 | 542 days | 84% |
| Hannah | 10/10 | 570 days | 83% |
| Shaun | 10/10 | 570 days | 83% |
| Anne | 8/10 | 601 days | 80% |
| Fredrik | 6/10 | 601 days | 70% |
| Nicolas | 7/10 | 693 days | 69% |
| Hayley | 9/10 | 754 days | 68% |
| Lindsay Byrnes | 8/10 | 876 days | 56% |
| Fabienne | 8/10 | 907 days | 53% |
| Ian Garcia | 8/10 | 936 days | 50% |
| Tine Warner | 9/10 | 967 days | 48% |
| Joel Fryett | 6/10 | 967 days | 41% |
| Loam | 6/10 | 967 days | 41% |
| M.K. | 9/10 | 1059 days | 39% |
| Ryli West | 8/10 | 1242 days | 24% |
| Steve | 9/10 | 1273 days | 23% |
| Jake | 10/10 | 1301 days | 21% |
| Arie | 7/10 | 1332 days | 18% |
| Julia | 9/10 | 1363 days | 17% |
| Debby | 9/10 | 1393 days | 16% |
| Lothar Valentijn | 10/10 | 1393 days | 16% |
| Sarah | 9/10 | 1393 days | 16% |
| Colin | 8/10 | 1424 days | 14% |
| Lisa | 10/10 | 1546 days | 9% |
| Anne S | 9/10 | 1638 days | 7% |
| Ana and Rob | 8/10 | 2215 days | 4% |
| Sandy | 9/10 | 2246 days | 4% |
| Maria | 6/10 | 2368 days | 3% |
| M&P | 8/10 | 2397 days | 4% |
| Tom Z. | 9/10 | 2428 days | 4% |
| Tea | 8/10 | 2459 days | 4% |
| Sue W | 8/10 | 2489 days | 4% |
| Maryline | 9/10 | 2703 days | 3% |
| Esa | 7/10 | 2734 days | 3% |
| Vincent | 9/10 | 2734 days | 3% |
| TP&MM | 8/10 | 2734 days | 3% |
| Chantal | 10/10 | 2824 days | 3% |
| James & Kerry | 9/10 | 2854 days | 3% |
| Melinda Pyke | 8/10 | 2915 days | 3% |
| Grizzly Girl | 8/10 | 2915 days | 3% |
| Esteban | 8/10 | 3068 days | 2% |
| Bridget Cumming | 7/10 | 3106 days | 2% |
| M A Pelton | 10/10 | 3109 days | 2% |
| UK 50-something couple | 8/10 | 3127 days | 2% |
| Suzanne Wijsman | 9/10 | 3135 days | 2% |
| Sandra Jeffers | 6/10 | 3235 days | 2% |
| Howard Morris | 8/10 | 3251 days | 2% |
| Geoff Steele | 7/10 | 3280 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3506 days | 1% |
| sara hoeflaken | 8/10 | 3520 days | 1% |
| Roeland Driessen | 8/10 | 3523 days | 1% |
| Cyrielle Vallat | 6/10 | 3578 days | 1% |
| Susan H | 10/10 | 3617 days | 1% |
| Ruth Hernandez | 8/10 | 3619 days | 1% |
| Kate | 8/10 | 3752 days | 1% |
| Joanna du Toit | 7/10 | 3909 days | 1% |
| Yvonne Wu | 8/10 | 4134 days | 0% |
| Soizic Vandermeersch | 7/10 | 4156 days | 0% |
| Rossco | 6/10 | 4164 days | 0% |
| Erica b | 7/10 | 4164 days | 0% |
| Larry Dashiell | 9/10 | 4195 days | 0% |
| June Harris | 6/10 | 4254 days | 0% |
| Matthias Thorn | 7/10 | 4254 days | 0% |
| Richard | 8/10 | 4438 days | 1% |
| travelscot | 9/10 | 4499 days | 1% |
| Patricia Revel | 9/10 | 4530 days | 1% |
| Katarina | 10/10 | 4531 days | 1% |
| Gillian Scott | 7/10 | 4558 days | 1% |
| Julie Robinson | 7/10 | 4575 days | 1% |
| Julien de la lande | 6/10 | 4601 days | 0% |
| Wouter Bosch | 7/10 | 4601 days | 1% |
| Aude Moulin | 5/10 | 4601 days | 0% |
| Maya Bakker-deDreu | 8/10 | 4609 days | 1% |
| JoMary Smith | 8/10 | 4619 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4650 days | 1% |
| Grantygrant | 7/10 | 4894 days | 1% |
| Bertiethebus | 8/10 | 4925 days | 1% |
| Kadyan | 6/10 | 4925 days | 1% |
| Malgorzata | 6/10 | 4929 days | 0% |
| Moni Sangoi | 7/10 | 4953 days | 1% |
| Puma17 | 7/10 | 4984 days | 1% |
| David | 5/10 | 4984 days | 1% |
| Auger | 10/10 | 5022 days | 1% |
| Auger | 10/10 | 5022 days | 1% |
| Mike & Jennie | 8/10 | 5301 days | 1% |
| Balonno | 3/10 | 5350 days | 0% |
| lydzb | 6/10 | 5381 days | 1% |
| ncopas | 1/10 | 5381 days | 0% |
| Annie Breton | 6/10 | 5639 days | 0% |
| Robin Smith | 10/10 | 5642 days | 1% |
| Jim & Rebecca | 9/10 | 5648 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5649 days | 1% |
| Chris | 8/10 | 5650 days | 1% |
| LandJ | 9/10 | 5656 days | 1% |
| Manfred & Gabi | 9/10 | 5667 days | 1% |
| Frank Lehe | 8/10 | 5669 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5672 days | 1% |
| Roy Seymour | 8/10 | 5675 days | 1% |
| Sabine | 9/10 | 5934 days | 1% |
| Anna | 9/10 | 5939 days | 1% |
| Siebels Wilke | 8/10 | 5953 days | 1% |
| Peter Aerborg | 9/10 | 5957 days | 1% |
| Peter Brown | 10/10 | 6017 days | 1% |
| John Cox | 8/10 | 6027 days | 1% |
| Helmet Paula | 3/10 | 6034 days | 0% |
| Lorena | 10/10 | 6049 days | 1% |
| Alexis De Wilde | 9/10 | 6121 days | 1% |
| Decuq | 7/10 | 6122 days | 1% |
| Vivien Williams | 10/10 | 6373 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
-0.83% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 103 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 67 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 64 | -0.79% |
| 65 | -0.80% |
| 66 | -0.82% |
| 67 | -0.83% |
| 68 | -0.84% |
| 69 | -0.85% |
| 70 | -0.87% |
| … | … |
Balancing Adjustment
3.18% 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
83%
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.