Assessment
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Miami Dade College, Miami *
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Course
1005
Subject
Chemistry
Date
Feb 20, 2024
Type
docx
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1
Uploaded by Nathirp
Assessment Types of Preference Assessments
Caregiver interview
Direct observation
Systematic assessment
Caregiver Interview Preference Assessment
Involves obtaining information from the individual's parents, friends and teachers about what the individual likes/prefers.
Direct Observation Preference Assessment
Involves presenting the individual with free access to items you think he or she will like and recording the amount of time the person engage with them. The more time spent with an item or activity, the stronger the presumed preference.
Preference assessment methods
Single item preference assessment
Paired method or force-choice preference assessment
Multiple choice preference assessment
Single Item Preference Assessment
Objects and activities are presented one by one. Each item is presented several times in a random order. After each presentation, data are recorded on how long the person engages with each object or activity.
Paired method or force-choice preference assessment
Involves simultaneously presentation of two items or activities. All items are paired systematically with every other item in a random order to ensure completeness. For each pair of item, the individual is asked to choose one. The most frequently selected item will likely be the most potent reinforcer.
Multiple Choice preference assessment
is an extension of paired method. Instead of having two items to choose from, Thera are
three or more. There are two variations to this method, with and without replacement.
With replacement: when an object is selected, all other objects are replaced in the next trial. Ex: if the individual if given a choice of cookies, crackers, and chips, and he chooses cookies the cookies will be available for the next trial but the crackers and chips will be replaced for new items
Without replacement: The cookies would not be replaced and the choice would only be between th crackers and the chips, no new items will be available
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Related Questions
To run a spectrophotometry experiment, begin by warming up
the spectrophotometer and preparing the samples. Be sure to select the correct absorbance
(X), then run a
measurement on the sample
solution. Follow up by running measurements on sample
solutions. Once data is collected, turn off the instrument, clean the area, and
discard the samples.
Partially correct
(2 of 4 correct)
arrow_forward
Consider the following sets of replicate measurements:
(1) Calculate the mean and standard deviation of Group A.
(2) Determine the confidence interval at 95% confidence level. Assume the data here are the only knowledge you have and no previous measurements are available.
arrow_forward
Arrange the values according to magnitude.
Greatest
Least
Answer Bank
7.1×10−6
3.3×10−2
52000
9.0×10−6
2.2×105
arrow_forward
Please answer the following question:
arrow_forward
Aspartic acid is a polyprotic system whose forms can be written as H3A+, H2A, HA-, and A2-. Its Ka values are:
Ka1 = 1.02 x 10-2
Ka2 = 1.26 x 10-4
Ka3 = 9.95 x 10-11
How many milliliters of 0.30 M NaOH should be added to 100 mL of a solution containing 8.0 g of the neutral, zwitterionic form of aspartic acid (M.W. = 133.10 g/mol) to bring the pH to 10.3?
Find the answer to the nearest mL. The answer is between 300 and 400. Retain 4 d.p. in your calculations and don't round until you calculate the volume of NaOH required at the very end.
arrow_forward
Aspartic acid is a polyprotic system whose forms can be written as H3A+, H2A, HA-, and A2-. Its Ka values are:
Ka1 = 1.02 x 10-2
Ka2 = 1.26 x 10-4
Ka3 = 9.95 x 10-11
How many milliliters of 0.30 M NaOH should be added to 100 mL of a solution containing 8.0 g of the neutral, zwitterionic form of aspartic acid (M.W. = 133.10 g/mol) to bring the pH to 10.3?
Find the answer to the nearest mL.
arrow_forward
Please let me know which 2 answers are correct, an explanation including evidence
arrow_forward
Consider the following data that was collected for a protein that contain 0.76 % tryptophan amino acids by weight (Molecular weight of tryptophan amino acids is 204 g/mol).
Absorbance
Concentration (mg/L)
0.0250
0.100
0.150
0.226
0.259
0.400
0.600
0.964
1.14
1.78
1.45
2.35
1.78
2.87
How many mg of the protein present in 1.00 L solution that shows an absorbance of 1.20?
arrow_forward
The spectroscopic data in the table is generated with five solutions of known concentration.
Concentration (M)
0.0133
m=
0.0266
0.0532
0.106
0.213
Absorbance
0.1271
What is the intercept of the linear regression line?
0.08531
0.5388
1.069
Use a spreadsheet program, such as Microsoft Excel, to graph the data points and determine the equation of the best-fit line.
1.954
What is the slope of the linear regression line formed by these points?
M-1
arrow_forward
A forensic scientist is trying to find out the number of adenine bases in the DNA sample that he obtained from a crime scene. What can he assume about the number of adenine? O The number of adenine bases will be equal to the number of guanine bases. O The number of adenine bases will be equal to the total of all the other bases. O The number of adenine bases will be equal to the number of thymine bases. O The number of adenine bases will be half of the number of cytosine bases.
arrow_forward
Choose the option that is decreasing from biggest to smallest.
Group of answer choices:
100 m, 10000 mm, 100 cm, 100000 um, 10000000 nm
10000000 nm, 100000 um, 100 cm, 10000 mm, 100 m
10000000 nm, 100000 um, 10000 mm, 100 cm, 100 m
100 m, 100 cm, 10000 mm, 100000 um, 10000000 nm
arrow_forward
What is the relative abundance of 35Cl in this sample?
42.9%, 57.1%, or 52.8%
arrow_forward
SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Related Questions
- To run a spectrophotometry experiment, begin by warming up the spectrophotometer and preparing the samples. Be sure to select the correct absorbance (X), then run a measurement on the sample solution. Follow up by running measurements on sample solutions. Once data is collected, turn off the instrument, clean the area, and discard the samples. Partially correct (2 of 4 correct)arrow_forwardConsider the following sets of replicate measurements: (1) Calculate the mean and standard deviation of Group A. (2) Determine the confidence interval at 95% confidence level. Assume the data here are the only knowledge you have and no previous measurements are available.arrow_forwardArrange the values according to magnitude. Greatest Least Answer Bank 7.1×10−6 3.3×10−2 52000 9.0×10−6 2.2×105arrow_forward
- Please answer the following question:arrow_forwardAspartic acid is a polyprotic system whose forms can be written as H3A+, H2A, HA-, and A2-. Its Ka values are: Ka1 = 1.02 x 10-2 Ka2 = 1.26 x 10-4 Ka3 = 9.95 x 10-11 How many milliliters of 0.30 M NaOH should be added to 100 mL of a solution containing 8.0 g of the neutral, zwitterionic form of aspartic acid (M.W. = 133.10 g/mol) to bring the pH to 10.3? Find the answer to the nearest mL. The answer is between 300 and 400. Retain 4 d.p. in your calculations and don't round until you calculate the volume of NaOH required at the very end.arrow_forwardAspartic acid is a polyprotic system whose forms can be written as H3A+, H2A, HA-, and A2-. Its Ka values are: Ka1 = 1.02 x 10-2 Ka2 = 1.26 x 10-4 Ka3 = 9.95 x 10-11 How many milliliters of 0.30 M NaOH should be added to 100 mL of a solution containing 8.0 g of the neutral, zwitterionic form of aspartic acid (M.W. = 133.10 g/mol) to bring the pH to 10.3? Find the answer to the nearest mL.arrow_forward
- Please let me know which 2 answers are correct, an explanation including evidencearrow_forwardConsider the following data that was collected for a protein that contain 0.76 % tryptophan amino acids by weight (Molecular weight of tryptophan amino acids is 204 g/mol). Absorbance Concentration (mg/L) 0.0250 0.100 0.150 0.226 0.259 0.400 0.600 0.964 1.14 1.78 1.45 2.35 1.78 2.87 How many mg of the protein present in 1.00 L solution that shows an absorbance of 1.20?arrow_forwardThe spectroscopic data in the table is generated with five solutions of known concentration. Concentration (M) 0.0133 m= 0.0266 0.0532 0.106 0.213 Absorbance 0.1271 What is the intercept of the linear regression line? 0.08531 0.5388 1.069 Use a spreadsheet program, such as Microsoft Excel, to graph the data points and determine the equation of the best-fit line. 1.954 What is the slope of the linear regression line formed by these points? M-1arrow_forward
- A forensic scientist is trying to find out the number of adenine bases in the DNA sample that he obtained from a crime scene. What can he assume about the number of adenine? O The number of adenine bases will be equal to the number of guanine bases. O The number of adenine bases will be equal to the total of all the other bases. O The number of adenine bases will be equal to the number of thymine bases. O The number of adenine bases will be half of the number of cytosine bases.arrow_forwardChoose the option that is decreasing from biggest to smallest. Group of answer choices: 100 m, 10000 mm, 100 cm, 100000 um, 10000000 nm 10000000 nm, 100000 um, 100 cm, 10000 mm, 100 m 10000000 nm, 100000 um, 10000 mm, 100 cm, 100 m 100 m, 100 cm, 10000 mm, 100000 um, 10000000 nmarrow_forwardWhat is the relative abundance of 35Cl in this sample? 42.9%, 57.1%, or 52.8%arrow_forward
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Recommended textbooks for you
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning