Digital SAT Mastery: Domain 1, Test 7 Bluebook App - Expert Walkthrough & Analysis
Analyzing Domain 1 Questions from Test 7 of the Bluebook Digital SAT App
Hello, all you wonderful students out there! Today, we're tackling Domain 1 of Test 7 from the Bluebook Digital SAT App.
These questions assess your ability to pinpoint critical information and analyze the author's claims and support within a passage.
If you're eager to practice with authentic past papers, you should head over to The Test Advantage to access exams from 2023, 2024, and 2025!
Alright, let's dive in!
Question 9
Question
Which statement about M. robustus and the Octopus Garden is best supported by the text?
Text
In 2018, scientists discovered an immense aggregation of M. robustus (Muusoctopus robustus) (pearl octopuses) along a hydrothermal vent 3,200 meters beneath the ocean’s surface. Water temperatures at this site—named the Octopus Garden—climb as high as 11°C, much warmer than the ambient 1.6°C typical at this depth. Based on observations made over three years, scientists concluded that temperatures at the site likely confer reproductive benefits and that the site is used exclusively for reproduction—6,000 M. robustus adults, hatchlings, and eggs were observed at the garden, but no juveniles were present.
Answer Choices
- (A) M. robustus leave the Octopus Garden upon reaching an intermediary stage of development.
- (B) The M. robustus population at the Octopus Garden remains stable despite variations in water temperature.
- (C) M. robustus nests in the Octopus Garden contain on average fewer but larger eggs than nests at similar ocean depths.
- (D) The Octopus Garden provides an ideal feeding ground for M. robustus hatchlings.
Explanation
Here, our task is to find a statement that can be inferred directly from the provided text. It’s like being a detective and looking for the strongest clues.
- What's Given? We know that the Octopus Garden is significantly warmer than the surrounding deep-sea environment (11°C vs. 1.6°C). Also, it seems to be a breeding ground for M. robustus because only adults, hatchlings, and eggs were found there – no young, developing octopuses.
Why Option A is Correct:
- The passage says: "...6,000 M. robustus adults, hatchlings, and eggs were observed at the garden, but no juveniles were present."
- The Missing Juveniles: The absence of juveniles is our biggest clue. If there are adults laying eggs and those eggs are hatching, but we don’t find the next stage (juveniles), then they *must* be leaving.
Why Other Options Are Wrong:
- (B) The passage says it’s "much warmer than the ambient 1.6°C typical at this depth." There are no variations in the water tempature. This implies a different tempature in the Octobus Garden than the water around it, not variations in water temperature.
- (C) The passage focuses on temperature and location, not on the size or number of eggs.
- (D) There is no mention of feeding in the text. It primarily focuses on reproduction.
Question 10
Question
Which choice best states the main idea of the text?
Text
Conservationists worldwide are working to protect ecosystems from habitat destruction and biodiversity loss, and in many cases, initiatives that rely on natural features or processes can help address such challenges. In response to a rapidly dwindling population of blueback salmon, the Quinault Indian Nation (a tribe in Washington State) partnered with the conservation organization Wild Salmon Center to restore naturally occurring logjams in the Quinault River. The logjams create shady pools where the blueback salmon can rest and spawn, thus promoting blueback population recovery.
Answer Choices
- (A) A partnership between the Quinault Indian Nation and Wild Salmon Center shows the importance of collaborative approaches to preserving biodiversity.
- (B) Nature-based approaches can be effective ways to achieve conservation goals.
- (C) As indicated by a recent project, logjams help the blueback salmon thrive and reproduce.
- (D) Scientists now realize that nature-based conservation methods offer better long-term solutions to environmental issues than methods that are not nature-based do.
Explanation
Here, we will first look to the topic sentence for an indication of the overall text's main idea.
- What's Given? The topic sentence tells us the main idea already; the text emphasizes *using nature to solve conservation challenges*.
Why Option B is Correct:
- The Power of Nature: This choice aligns perfectly with the core message: “nature-based approaches” are directly in line with the idea that “initiatives that rely on natural features or processes can help.”
Why Other Options Are Wrong:
- (A) The passage highlights the use of nature; no collaboration is mentioned.
- (C) This is a detail, not a summary of the whole passage.
- (D) This statement might be true, but it’s not the primary focus of the text.
Question 11
Question
Which choice best describes data from the graph that support the researchers’ conclusion?
Passage and Graph
*Alessandro Nai et al. presented study participants with vignettes about fictive political candidates, portraying them as embodying a personality trait widely considered admirable (e.g., agreeableness) or one considered ignoble (e.g., cynicism). A survey recorded participants’ ratings of the candidates’ likability and showed that across participants, ignoble-trait candidates were less likable than admirable-trait candidates. However, when the researchers factored in the participants’ own personality-trait scores, on a scale of 1 (least ignoble) to 7 (most ignoble), they concluded that this relative ranking of candidates persisted except among the participants with high ignobility scores.*
Answer Choices
- (A) There was a strong positive correlation between participants’ ignobility scores and admirable-trait candidates’ likability ratings, but there was no correlation between ignobility scores and ignoble-trait candidates’ likability ratings.
- (B) Participants with an ignobility score of 5 or less rated admirable-trait candidates as more likable than ignoble-trait candidates, whereas participants with an ignobility score of 6 or more rated ignoble-trait candidates as equally likable as or even more likable than admirable-trait candidates.
- (C) Overall, participants rated admirable-trait candidates as quite likable, and that rating was not significantly affected by the participants’ ignobility scores.
- (D) Unlike participants with an ignobility score of 6, participants with an ignobility score either greater or less than 6 gave admirable-trait candidates and ignoble-trait candidates different likability ratings.
Explanation
To analyze this question and graph we need to follow these steps:
- We want data from the graph that supports the researcher's conclusion
- First, read the last sentence to gather the study's conclusions.
- Then look at the title and graph.
- Determine how you can prove or deny this conclusion using only the data from the graph.
- What's Given? The conclusion the scientists reached was "on a scale of 1 (least ignoble) to 7 (most ignoble), they concluded that this relative ranking of candidates persisted except among the participants with high ignobility scores."
Why Option B is Correct:
- Looking at the graph, it's very clear that among those who had ignobility scores from 1-5, the admirable-trait candidates (dark line) are always given a higher Candidate-likability score (on a scale of 0 to 100) than the ignoble-trait candidates. When participants’ ignobility score of 6, both ignoble-trait candidates and admirable-trait candidates are given an almost equal likability score. Then, when the participants have the highest level of ignobility at 7, those participants rate the ignoble-trait candidate as more likable than the admirable trait candidates.
Why Other Options Are Wrong:
- (A) This is untrue.
- (C) This answer is a generalization.
- (D) This is very difficult to be able to determine from the data, and only supports the second part of the conclusion.
Question 12
Question
Which finding, if true, would most directly weaken the underlined claim?
Text
*Puerto Rico is an island in the Caribbean Sea. Indigenous people there started raising guinea pigs about 1,700 years ago. Guinea pigs had originally been domesticated much earlier in both Colombia and Peru. So were guinea pigs brought to Puerto Rico from Colombia or from Peru? Ancient Caribbean trade routes connected Puerto Rico with Colombia but not with Peru. Therefore, guinea pigs in Puerto Rico probably came from Colombia and descended from Colombian guinea pigs.*
Answer Choices
- (A) Ancient guinea pigs in Puerto Rico were genetically less similar to ancient guinea pigs in Colombia than to ancient guinea pigs in Peru.
- (B) Guinea pigs are common in ancient Puerto Rican art, especially in pottery.
- (C) Modern breeds of guinea pigs don’t look like images of guinea pigs in ancient art from Puerto Rico, Colombia, and Peru.
- (D) The guinea pig population of ancient Colombia was much larger than the guinea pig population of ancient Peru.
Explanation
For this question, we must weaken the claim.
- What's Given? We know the statement that we must weaken is, "Therefore, guinea pigs in Puerto Rico probably came from Colombia and descended from Colombian guinea pigs."
Why Option A is Correct:
- If the guinea pigs in Puerto Rico were more similar to those in Peru, that fact goes against the claim. It would weaken the claim that the pigs must have come from Colombia.
Why Other Options Are Wrong:
- (B) This would not disprove the claim, as it speaks of art.
- (C) This focuses on what the guinea pigs looked like; we do not need that information to understand where the guinea pigs came from.
- (D) This response would likely strengthen rather than weaken the claim.
Question 13
Question
Which finding, if true, would most directly support the researchers’ hypothesis?
Text
“Ad recall” measures how memorable an advertising campaign is. To provide advertisers with information about their ads’ memorability, a social media site regularly surveys users about whether they remember ads they had recently interacted with on the site. In a study that drew on this survey data, advertising researcher Kristen Sussman and colleagues noted that different kinds of social media interactions involve different levels of cognitive engagement: commenting on or sharing a post is more cognitively demanding than is clicking on embedded links or on a “like” button. The researchers hypothesized that interactions indicating high levels of cognitive engagement with ad content would result in relatively high levels of ad recall.
Answer Choices
- (A) Users who interacted with an ad were much more likely to do so by clicking on the ad’s “like” button than they were to interact with the ad in any other way.
- (B) Users who interacted with an ad were significantly more likely to purchase the advertised product at the time they saw the ad than were users who saw the ad but did not interact with it.
- (C) Compared with users who clicked on links in an ad, users who commented on that same ad were significantly more likely to remember seeing the ad when surveyed two days later.
- (D) Although users who shared an ad were highly likely to remember details from the ad when surveyed two days later, those same users tended to forget those details when surveyed again a week later.
Explanation
Let’s go through our familiar process:
- What are we looking for? Something that *supports* a particular claim made by researchers.
- What is the researchers’ claim? The researchers hypothesized that interacting more directly with an ad will make them remember the ad.
Why Option C is Correct:
- The passage clearly states that commenting on or sharing a post requires higher cognitive function, and leads to higher ad recall. Answer choice C supports this point: *users who commented* (high cognitive engagement) *were significantly more likely to remember seeing the ad* (high ad recall).
Why Other Options Are Wrong:
- (A) Clicking “like” is considered less engaging in the passage.
- (B) This discusses buying a product, not remembering an advertisement.
- (D) This information can be true, but it has nothing to do with the hypothesis.
Question 14
Question
Which choice most effectively uses *data* from the table to complete the statement?
Passage and Graph
*A student is researching rotating radio transients (RRATs), a subclass of pulsar stars characterized by short pulses of radio waves. The time between consecutive pulses of an RRAT is referred to as a period. Looking at the table, the student determines that ______*
Answer Choices
- (A) J0614-03 has the shortest amount of time between consecutive pulses of all the RRATs in the table.
- (B) J0545-03 and J0121-53 have the same amount of time between consecutive pulses.
- (C) J1654-2355 has the longest amount of time between consecutive pulses of all the RRATs in the table.
- (D) J0103+54 and J0121+53 both have more than one second of time between consecutive pulses.
Explanation
Here, we’re looking for accurate data representation.
- What's Given The passage gives a lot of background and defines the information we need to analyze. The time between consecutive pulses is considered the period.
Why Option D is Correct:
- Looking at "period" column, J0103+54 has a period of 1.074 seconds, while J0121+53 has a period of 2.725 seconds. Both of these numbers are greater than one second, so the answer is D.
Why Other Options Are Wrong:
- (A) Looking at the period, the shortest is J0614-03 is not the lowest number.
- (B) The periods of J0545-03 and J0121-53 are not the same time.
- (C) The longest period would go to J1654-2355; so it is incorrect.
Okay, all you brilliant students out there! Keep in mind, questions do sometimes get repeated on the digital SAT, so having familiarity with prior tests like this can be a major asset.
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