Pop Quiz #1 +#2

Question 1

Standard Score

Answer 1

Mean: 100
Standard Deviation: 15

Question 2

T-Score

Answer 2

Mean: 50
Standard Deviation: 10

Question 3

Z-Score

Answer 3

Mean: 0
Standard Deviation: 1

Question 4

Scaled Score

Answer 4

Mean: 10
Standard Deviation: 3

Question 5

Percentile Rank

Answer 5

Mean: 50th
Standard Deviation: –

Question 6

Stanine

Answer 6

Mean: 5
Standard Deviation: –

Question 7

Jessi scored 3 standard deviations above the mean. Her scores are:

Answer 7

Standard: 100+15+15+15= 145
T-Score: 50 +10+10+10= 80
Z-Score: 0+1+1+1 = 3
Scaled Score: 10+3+3+3= 19
Percentile Rank: –
Stanine: –

Question 8

Alex scored 2 standard deviations below the mean. His scores are:

Answer 8

Standard: 100-15-15= 70
T-Score: 50-10-10 = 30
Z-Score: 0-1-1= -2
Scaled Score: 10-3-3-3= 4
Percentile Rank: –
Stanine: –

Question 9

Dianne’s T-score is 75. She scored _____ SD’s _______ (above/below) the mean.

Answer 9

2 above

Question 10

Jackie’s Standard Score is 85. She scored _______ SD’s ________ (above/below) the mean.

Answer 10

1 below

Question 11

Luca’s Scaled score is 4. He scored _______ SD’s ___________ (above/below) the mean.

Answer 11

2 below

Question 12

__________ is a measure of consistency

Answer 12

Reliability

Question 12

_________ is a measure of how well an instrument measures what it purports to measure.

Answer 12

Validity

Question 13

_______ is a band of nine

Answer 13

stanine

Question 14

A _________ relationship exists when the values on both variables increase.

Answer 14

positive

Question 15

When variables on one increase while the other decreases, the relationship is said to be ________

Answer 15

Negative

Question 16

What is the value of the coefficient (r)?

Answer 16

+1 to -1

Question 17

1. Tamara’s obtained score is 95 with an SEM of 4 at the 68th percent confidence level. What is the range of Tamara’s Score?
2. What would the range be if you wanted to be 95% confident?

Answer 17

1. (95+- 4)
   95-4= 91
   95+4=99
   range = (91-99)
2. Double the SEM: 4x2= 8
   8+-
   95-8= 87
   95+8= 103
   range at 95% confident= (87-103)

Question 18

1. Johan earned a scaled score of 13. What is his standard score? ______.
2. Now, the SEM for the standards score at 68th percent confidence level is 3. What is the range of Johan’s standard score if we are to be 68% confident? ____________.
3. What do you do if you want to be 95% confident? _______________.

Answer 18

1. 115
2. +-3., 115-3= 112, 115+3 = 118
   range= (112-118)
3. Double the SEM= 6+-
   115-6= 109
   115+6= 121
   (109-121)

Question 19

D.O.E= 2024, 10, 03
D.O.B= 2017, 07, 01
What is their chronological age?

Answer 19

7 years, 3 months, 2 days

Question 20

D.O.E= 2024, 10, 03
D.O.B= 2002, 10, 10
What is their chronological age?

Answer 20

21 years 11 months, 23 years
round up = 21 years and 12 months, 0 days

Question 21

How do you round chronological age?

Answer 21

15 days + round up
14 days and below round down.

Question 22

D.O.E= 2024, 11, 09
D.O.B= 2001, 10, 12
What is their chronological age?

Answer 22

23 years, 0 months, and 27 days
round= 23 years, 1 month, and 0 days

Question 23

8. 1
9. 1
10. 1
11. 1
12. 1
13. 0
14. 1
15. 0
16. 1
17. 0
18. 0
19. 0
    - The basal is 4: Find the basal items and item.
    - The Ceiling is 3: Find the ceiling items and item.
    - Find the raw score.

Answer 23

Basal is the number of how many they need to get correct in a row.
Basal ITEM is what is the last number correct.
Basal items= 8, 9, 10, 11
Basal ITEM= 11

Ceiling is the number they can get wrong in a row.
Ceiling ITEM: this is the last one they get wrong (end of the assessment).

Ceiling items: 17, 18, 19
Ceiling ITEM: 19

Raw Score: Ceiling- total amount of errors.
19-5= 14
raw score = 14