Pop Quiz #1 +#2 Flashcards
Standard Score
Mean: 100
Standard Deviation: 15
T-Score
Mean: 50
Standard Deviation: 10
Z-Score
Mean: 0
Standard Deviation: 1
Scaled Score
Mean: 10
Standard Deviation: 3
Percentile Rank
Mean: 50th
Standard Deviation: –
Stanine
Mean: 5
Standard Deviation: –
Jessi scored 3 standard deviations above the mean. Her scores are:
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: –
Alex scored 2 standard deviations below the mean. His scores are:
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: –
Dianne’s T-score is 75. She scored _____ SD’s _______ (above/below) the mean.
2 above
Jackie’s Standard Score is 85. She scored _______ SD’s ________ (above/below) the mean.
1 below
Luca’s Scaled score is 4. He scored _______ SD’s ___________ (above/below) the mean.
2 below
__________ is a measure of consistency
Reliability
_________ is a measure of how well an instrument measures what it purports to measure.
Validity
_______ is a band of nine
stanine
A _________ relationship exists when the values on both variables increase.
positive
When variables on one increase while the other decreases, the relationship is said to be ________
Negative
What is the value of the coefficient (r)?
+1 to -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?
- What would the range be if you wanted to be 95% confident?
- (95+- 4)
95-4= 91
95+4=99
range = (91-99) - Double the SEM: 4x2= 8
8+-
95-8= 87
95+8= 103
range at 95% confident= (87-103)
- Johan earned a scaled score of 13. What is his standard score? ______.
- 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? ____________.
- What do you do if you want to be 95% confident? _______________.
- 115
- +-3., 115-3= 112, 115+3 = 118
range= (112-118) - Double the SEM= 6+-
115-6= 109
115+6= 121
(109-121)
D.O.E= 2024, 10, 03
D.O.B= 2017, 07, 01
What is their chronological age?
7 years, 3 months, 2 days
D.O.E= 2024, 10, 03
D.O.B= 2002, 10, 10
What is their chronological age?
21 years 11 months, 23 years
round up = 21 years and 12 months, 0 days
How do you round chronological age?
15 days + round up
14 days and below round down.
D.O.E= 2024, 11, 09
D.O.B= 2001, 10, 12
What is their chronological age?
23 years, 0 months, and 27 days
round= 23 years, 1 month, and 0 days
- 1
- 1
- 1
- 1
- 1
- 0
- 1
- 0
- 1
- 0
- 0
- 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.
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