Past questions
Past questions
Try these 10 questions from past papers and tap an option to see the answer and why.
Which of the following is correct?
Not quite. The answer is B.
Why: Alternate forms reliability evaluates the consistency of scores between two equivalent versions of a test administered to the same group of people. This method assesses both consistency over time and across different but equivalent item sets.
Computer assisted testing is principally based on ____________
Not quite. The answer is A.
Why: Computerized adaptive testing is principally based on Item Response Theory (IRT). IRT models the relationship between latent ability and the probability of responding to each item, and item information allows the program to select questions matched to the examinee's current ability estimate.
Which one of the following statement is true in the context of item analysis?
Not quite. The answer is B.
Why: Item-total correlation is the correlation of an item with the total score including that item. Item-remainder correlation corrects for this by correlating the item with the total score minus that item.
The Wechsler type deviation IQ of 115 corresponds to which value of percentile rank?
Not quite. The answer is B.
Why: A Wechsler deviation IQ of 115 is exactly one standard deviation (SD=15) above the mean (100). In a normal distribution, the area up to the mean is the 50th percentile, and the area between the mean and +1 SD is approximately 34%.
Cog-screen, a computer assisted tool, has been used in the selection of _______________.
Not quite. The answer is C.
Why: Cog-screen is a specific computer-assisted cognitive screening battery designed and used for the selection of airline pilots. It assesses cognitive functions that are critical for aviation safety.
Class is to the __________ property of measurement as time is to the ____________ property of measurement.
Not quite. The answer is C.
Why: According to S.S. Stevens' levels of measurement, classification into categories possesses the 'identity' property, which is characteristic of the nominal scale.
For an intelligence test in an educational setting, which of the following difficulty value shows maximum discrimination?
Not quite. The answer is C.
Why: An item's ability to discriminate between high- and low-scoring individuals is maximized when its difficulty index (p-value, or proportion passing) is 0.50. At this level, item score variance is at its maximum, allowing for the greatest possible differentiation between groups.
Identify the indices of item validity
- a)Item-inter correlation
- b)Item -total correlation
- c)Item-pass proportion
- d)Item-criterion correlation
Not quite. The answer is C.
Why: Item-total correlation shows how well an item relates to performance on the test as a whole and is commonly used as an item discrimination or item-validity index. Item-criterion correlation relates the item directly to an external criterion.
What is the correct sequence in development of a psychological tool?
- A.Establishing reliability
- B.Item analysis
- C.Developing norms
- D.Establishing validity
Not quite. The answer is B.
Why: The keyed test-development sequence is item analysis (B) → establishing reliability (A) → establishing validity (D) → developing norms (C). This gives B, A, D, C, so option B is correct.
Match List I with List II.
- A.Z Score
- B.Stanine
- C.T Score
- D.Sten
- I.X̄ = 50, σ = 10
- II.X̄ = 5.5, σ = 2
- III.X̄ = 5, σ = 2 (approx)
- IV.X̄ = 0, σ = 1
Not quite. The answer is A.
Why: A z score has mean 0 and SD 1 (A–IV); a stanine scale is centered near 5 with SD about 2 (B–III); a T score has mean 50 and SD 10 (C–I); and a sten scale is centered near 5.5 with SD about 2 (D–II). The mapping A–IV, B–III, C–I, D–II is option A.