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BACB BCABA Exam - Topic 3 Question 113 Discussion

Missy is using a multiple probe across participants design to evaluate the effects of peer tutoring to teach three students to complete division problems. These three students have had no prior instruction in division. Missy MOST LIKELY chose a multiple probe design rather than a multiple baseline design becausE.
A) the students' baseline scores will be zero.
B) the students could not miss class very often.
C) other extraneous variables may cause their skills to improve.
D) she is interested in comparing the effects of three interventions at once.

BACB BCABA Exam - Topic 3 Question 113 Discussion

Actual exam question for BACB's BCABA exam
Question #: 113
Topic #: 3
[All BCABA Questions]

Missy is using a multiple probe across participants design to evaluate the effects of peer tutoring to teach three students to complete division problems. These three students have had no prior instruction in division. Missy MOST LIKELY chose a multiple probe design rather than a multiple baseline design becausE.

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Suggested Answer: A

by Roosevelt at Jul 10, 2025, 01:31 AM

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Major
7 months ago
Totally agree with Rozella, extraneous variables are a big deal!
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Paola
7 months ago
Wait, can you really use multiple probe if they have zero scores?
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Rozella
7 months ago
I think option C makes the most sense here.
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Solange
7 months ago
Not sure if this is the best choice, seems risky with no prior instruction.
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Giuseppe
8 months ago
A multiple probe design is great for zero baseline scores!
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Isadora
8 months ago
I don't think she's comparing three interventions at once, so D seems unlikely. I lean towards A or C, but I’m not completely confident.
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Keith
8 months ago
I feel like I saw a similar question about choosing between designs, and it had to do with extraneous variables affecting results. Maybe option C is relevant here?
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Ettie
8 months ago
I think Missy chose this design because the students have no prior instruction, so their baseline scores would be zero. That seems to fit with option A.
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Mariann
8 months ago
I remember that a multiple probe design is often used when you can't have a stable baseline, but I'm not sure if that's the main reason here.
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Moon
9 months ago
I'm pretty confident that the answer is C. The multiple probe design allows Missy to see if the peer tutoring intervention is effective, even if other factors might cause the students' skills to improve over time.
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Shanice
9 months ago
I think the multiple probe design is used when you want to see if the intervention has an effect, but you don't necessarily need to establish a stable baseline first. That makes sense in this case, since the students have no prior knowledge of division.
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Felix
9 months ago
Okay, let's see. The key here is that the students have had no prior instruction in division, so their baseline scores will likely be zero. That rules out option A. I'm leaning towards C, since other factors could cause their skills to improve over time.
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Shalon
9 months ago
Hmm, this is a tricky one. I'm not sure if I fully understand the difference between a multiple probe and multiple baseline design. I'll need to think this through carefully.
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Lyda
11 months ago
Option C is a valid concern, but a well-designed multiple probe study should be able to account for that. I think A is the way to go.
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France
11 months ago
That makes sense. It's important to consider the research question when choosing a design.
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Tammara
11 months ago
Option D is interesting, but I don't think that's the right answer here. Missy is looking at the effects of peer tutoring, not comparing multiple interventions.
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Bambi
10 months ago
C) other extraneous variables may cause their skills to improve.
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Veronika
10 months ago
A) the students' baseline scores will be zero.
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Lenna
11 months ago
I see your point, but maybe Missy wanted to see the effects of peer tutoring specifically.
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Rory
11 months ago
But wouldn't a multiple baseline design be better for comparing interventions?
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Ronald
11 months ago
Haha, imagine if Missy tried a multiple baseline design and the students just kept getting division right from the start. Talk about a boring study!
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Malcolm
11 months ago
C) other extraneous variables may cause their skills to improve.
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Tequila
11 months ago
A) the students' baseline scores will be zero.
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Stefany
12 months ago
I agree with Maia. The multiple probe design is better suited when you expect baseline scores to be zero, which is the case here.
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Micaela
11 months ago
That makes sense, it's important to consider that when choosing a research design.
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Latrice
11 months ago
I think Missy chose the multiple probe design because the students' baseline scores will be zero.
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Maia
12 months ago
Option A makes the most sense. If the students have had no prior instruction in division, their baseline scores will likely be zero, making a multiple probe design more appropriate.
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Judy
11 months ago
Yes, having baseline scores of zero would make a multiple probe design more suitable for evaluating the effects of peer tutoring.
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Salina
11 months ago
I agree, option A seems like the most logical choice in this scenario.
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France
12 months ago
Yeah, I agree. It helps to control for other factors that could influence the results.
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Lenna
12 months ago
I think Missy chose a multiple probe design because of extraneous variables.
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