For the first question about classical test theory, to calculate the estimated reliability of the test, you need to use the formula:
Estimated reliability = (True variance) / (Observed variance)
In this case, the true variance is 40 and the observed variance is 50. Plugging these values into the formula, you get:
Estimated reliability = 40 / 50 = 0.80
So the correct answer is C, 0.80.
For the second question about correlation, a correlation coefficient of -0.70 means that there is a negative relationship between interest in statistics and being a "fun date". It indicates that as interest in statistics increases, the likelihood of being a "fun date" decreases. So the correct answer is B, "The higher someone’s interest was in statistics, the less likely it would be that he or she is a fun date."
For the third question about the standard error of measurement, to determine where Tom's true score would fall 99.5 percent of the time, you need to use the standard error of measurement (SEM). The SEM represents the average amount of error in a test score.
To calculate the range, you can use the formula:
Range = Tom's score ± (2.58 * SEM), where 2.58 is the z-score corresponding to a 99.5% confidence level.
In this case, Tom's score is 72 and the SEM is 3. Plugging these values into the formula, you get:
Range = 72 ± (2.58 * 3) = 72 ± 7.74 = 64.26 to 79.74
So the correct answer is D, "63 to 81".
For the fourth question about identifying and selecting psychometrically sound assessment instruments, the most appropriate method would be to consult the Mental Measurements Yearbook or Tests in Print. These resources provide comprehensive information on a wide range of assessments, including their psychometric properties. So the correct answer is B.
For the fifth question about the interpretation of assessment results, it is important to use descriptive terms that accompany the numerical scores to aid in understanding. Using only precise psychometric terms may not be easily understood by clients, and using vague terms may lead to misinterpretations. So the correct answer is C.
For the sixth question about conducting an interview with a client from another culture, it is important to consider the degree to which self-disclosure is encouraged in that culture. Some cultures may value privacy and avoid sharing personal information, while others may encourage more openness. So the correct answer is B.
For the seventh question about the Myers-Briggs personality types, an introverted client who uses senses to perceive information, uses feelings to process information, and whose orientation to the outer world is judgment would have the ISFJ type. ISFJ stands for Introversion, Sensing, Feeling, and Judging. So the correct answer is A.
For the eighth question about projective techniques, they are designed to measure the covert and underlying aspects of personality. They aim to reveal unconscious or subconscious thoughts, feelings, and conflicts. So the correct answer is D.
For the ninth question about using a projective technique, the counselor should be trained extensively in using and interpreting the technique. Projective techniques require specialized knowledge and skill to administer and interpret accurately. So the correct answer is A.
For the tenth question about personality disorders, they will become slowly evident through recurrent themes, such as relationship difficulties, and through the client's interactions with the counselor. They are not typically associated with legal difficulties, and it may take time for patterns of abnormal behavior to emerge. So the correct answer is C.