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 Ace Rental Cars.
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.
Ace Rental Cars
Valid Reviews
109 Valid Reviews
The Ace Rental Cars experience has a total of 116 reviews. There are 109 valid reviews that are included when calculating the ranking score and 7 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 109 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 12 |
|
11% |
| 9/10 | 9 |
|
8% |
| 8/10 | 21 |
|
19% |
| 7/10 | 7 |
|
6% |
| 6/10 | 3 |
|
3% |
| 5/10 | 5 |
|
5% |
| 4/10 | 3 |
|
3% |
| 3/10 | 2 |
|
2% |
| 2/10 | 17 |
|
16% |
| 1/10 | 30 |
|
28% |
49.82% Average
The raw data average (mean) for all the Ace Rental Cars valid reviews is 49.82% and is based on 109 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
47 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 109 valid reviews, the experience has 47 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 47 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 5 |
|
11% |
| 9/10 | 5 |
|
11% |
| 8/10 | 19 |
|
40% |
| 7/10 | 7 |
|
15% |
| 6/10 | 3 |
|
6% |
| 5/10 | 4 |
|
9% |
| 4/10 | 2 |
|
4% |
| 3/10 | 1 |
|
2% |
| 2/10 | 1 |
|
2% |
| 1/10 | 0 |
|
0% |
73.83% Average
The raw data average (mean) for all the Ace Rental Cars face-to-face reviews is 73.83% and is based on 47 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
36.97%
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 |
|---|---|---|---|
| Lana | 1/10 | 615 days | 100% |
| Megan | 1/10 | 735 days | 88% |
| Mateo | 1/10 | 888 days | 70% |
| Jenny Kirk | 1/10 | 1649 days | 8% |
| John | 1/10 | 1802 days | 6% |
| Kim canny | 1/10 | 1862 days | 6% |
| Richard Bird | 2/10 | 1862 days | 7% |
| Neal Smith | 10/10 | 1893 days | 15% |
| Marianne | 1/10 | 2168 days | 5% |
| Andy Willmott | 1/10 | 2196 days | 5% |
| Kate | 1/10 | 2196 days | 5% |
| Luca Mangione | 2/10 | 2227 days | 6% |
| John | 2/10 | 2227 days | 6% |
| Sri Claney | 1/10 | 2258 days | 5% |
| Tom | 10/10 | 2258 days | 13% |
| Wendy | 10/10 | 2319 days | 12% |
| Justin | 1/10 | 2349 days | 5% |
| Dan | 2/10 | 2349 days | 5% |
| PB | 1/10 | 2441 days | 5% |
| Mike | 2/10 | 2502 days | 5% |
| Siena | 1/10 | 2502 days | 4% |
| Josephina | 1/10 | 2502 days | 4% |
| RyLee B | 1/10 | 2592 days | 4% |
| Chris Monk | 1/10 | 2867 days | 4% |
| Bryce Kehoe | 8/10 | 2884 days | 9% |
| Martin Murlik | 6/10 | 2888 days | 8% |
| Audrey Darling | 1/10 | 2926 days | 3% |
| Ben | 8/10 | 3028 days | 8% |
| Jo Yo | 1/10 | 3079 days | 3% |
| Olivier Reculeau | 8/10 | 3234 days | 7% |
| Bernhard Fichtl | 5/10 | 3291 days | 5% |
| Casey O'Brien | 2/10 | 3292 days | 3% |
| Carmel Lackey | 10/10 | 3415 days | 6% |
| Martin B | 2/10 | 3476 days | 2% |
| S D | 2/10 | 3537 days | 2% |
| Dror Eyal | 2/10 | 3629 days | 2% |
| Ted Allan | 2/10 | 3629 days | 2% |
| Kat R | 2/10 | 3657 days | 2% |
| Tom Grigg | 6/10 | 3669 days | 4% |
| Charlie Birdwick | 9/10 | 3780 days | 3% |
| Kiwinomad | 1/10 | 3810 days | 1% |
| Paje | 2/10 | 3810 days | 1% |
| MODADC | 3/10 | 3841 days | 2% |
| kjd | 2/10 | 3963 days | 1% |
| Pete Dixon | 1/10 | 4022 days | 1% |
| Diane S | 9/10 | 4022 days | 2% |
| Michael Rohn | 8/10 | 4050 days | 2% |
| Cornelia Stark | 9/10 | 4050 days | 2% |
| Michael Stark | 10/10 | 4050 days | 2% |
| Tisa Duong | 1/10 | 4053 days | 1% |
| R K | 1/10 | 4053 days | 1% |
| Simon Kay | 2/10 | 4053 days | 1% |
| Annika Schmidt | 7/10 | 4333 days | 0% |
| Patrick Stoeit | 5/10 | 4333 days | 0% |
| Y S | 10/10 | 4387 days | 3% |
| Rikke E. | 1/10 | 4418 days | 1% |
| Takenforaride | 1/10 | 4418 days | 1% |
| sharnef | 2/10 | 4510 days | 1% |
| Tourist101 | 9/10 | 4510 days | 3% |
| Jonas King | 4/10 | 4571 days | 2% |
| NoWonderAllKiwisAreInOZ | 1/10 | 4632 days | 1% |
| russwhanau | 1/10 | 4693 days | 1% |
| Marian Stolker | 8/10 | 4740 days | 3% |
| Thomas Krause | 5/10 | 4747 days | 2% |
| Chris & Jen Spencer | 8/10 | 4764 days | 3% |
| Wendy Ashmore | 10/10 | 4831 days | 3% |
| Hamlet | 1/10 | 4937 days | 1% |
| tonny_lim | 1/10 | 4998 days | 1% |
| Gunter | 8/10 | 5073 days | 3% |
| Igor Cima | 10/10 | 5076 days | 3% |
| Gary Koehler | 8/10 | 5081 days | 3% |
| Ryan Dorsey | 8/10 | 5087 days | 3% |
| Kathleen Brown | 10/10 | 5088 days | 3% |
| Ross | 10/10 | 5090 days | 3% |
| Wendy Good | 8/10 | 5092 days | 3% |
| Stacey Rees | 2/10 | 5104 days | 1% |
| Helen Gilbertson | 8/10 | 5117 days | 3% |
| Lacam | 5/10 | 5118 days | 2% |
| jls | 1/10 | 5180 days | 1% |
| chubby69 | 9/10 | 5333 days | 3% |
| Ann Michle | 8/10 | 5375 days | 3% |
| Rose Kearsley | 7/10 | 5445 days | 3% |
| Jamie Hallifax | 8/10 | 5474 days | 3% |
| meggles | 2/10 | 5483 days | 1% |
| Jane | 8/10 | 5545 days | 3% |
| Dimitry Zonnet | 8/10 | 5571 days | 3% |
| S Schlesinger | 10/10 | 5794 days | 3% |
| Jessica Jobmann | 7/10 | 5796 days | 3% |
| Mayer | 8/10 | 5806 days | 3% |
| AnnickH | 7/10 | 5811 days | 3% |
| OllyD | 4/10 | 5818 days | 2% |
| Jasmin | 7/10 | 5820 days | 3% |
| ChenM | 9/10 | 5823 days | 3% |
| Mark | 8/10 | 5862 days | 3% |
| Daryl | 7/10 | 5863 days | 3% |
| Tim | 8/10 | 5910 days | 3% |
| Kath | 9/10 | 5967 days | 3% |
| Louise | 9/10 | 5996 days | 3% |
| Edmund Hillstone | 1/10 | 6139 days | 1% |
| Marian Mckinney | 10/10 | 6182 days | 3% |
| Emma Dickinson | 6/10 | 6186 days | 2% |
| Omri Hasson | 4/10 | 6186 days | 2% |
| Ian and Judy | 8/10 | 6190 days | 3% |
| Katharina | 7/10 | 6201 days | 3% |
| Mike | 3/10 | 6201 days | 1% |
| Mark | 8/10 | 6217 days | 3% |
| Melissa Steedman | 5/10 | 6228 days | 2% |
| Steven | 9/10 | 6263 days | 3% |
| purplekat99 | 8/10 | 6337 days | 3% |
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 Ace Rental Cars experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-7.15% Adjustment
Recent reviews reflect the experience as it currently operates. This means it's important to get fresh reviews. Some experiences discovered they could get a few good reviews and then, resting on their laurels, discourage any further reviews. This adjustment stimulates experiences to be positively involved in the review generating process and discourages them from manipulating the ranking system in this manner.
What constitutes a recent review is based on the how old it is, what type of experience it is applied to and and what time of year it currently is. Due to the seasonal nature of many businesses, what is considered recent is dynamically adjusted throughout the year.
There may be an adjustment if this experience hasn't received enough reviews within the last 50 days. The Ace Rental Cars experience has 0 recent rankings. Adjustments are according to the following table:
| Recent Reviews | Adjustment |
|---|---|
| 0 | -3.00% |
| 1 | -2.63% |
| 2 | -1.50% |
| 3 | -0.38% |
| 4 | -0.00% |
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 Ace Rental Cars experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -4.09% |
| 198 | -4.11% |
| 199 | -4.13% |
| 200 | -4.15% |
| 201 | -4.17% |
| 202 | -4.19% |
| 203 | -4.21% |
| … | … |
Balancing Adjustment
33.04% 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
63%
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.