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Statistics Psychomet
Behavioral Medicine, wvsom
| Question | Answer |
|---|---|
| What are some things when we measure human function or aptitude? | Cognitive ability (IQ) Academic achievement Memory Vocabulary Fine motor speed Strength of Lateral Preference (right vs lefthanded) |
| What do we look at when we assess traits in an individual? | Personality and preferences Depression Anxiety |
| What are the four methods of assessment? | Sample Projective Actuarial Self-Report |
| What places a limit on validity? | reliability, (get a consistent result) |
| Which term means an instrument measures what it purports to measure? | validity |
| What indicates that an instrument would yield the same result for anyone who uses it? | standardization |
| What does a normative sample indicate? | The average for a large number of a population in the thousands, it yields a distribution. |
| What are the four types of distribution? | Normal Bimodal Flat Skewed |
| How is bimodal different from normal? | It has two peaks. |
| What is a flat distribution? | All of the measurements are likely. |
| What is a skewed distribution? | There is a bell curve with a long tail on one end. Example: income |
| What is the standard deviation? | How far you go plus/minus from the mean to include 68% of the population in a distribution. |
| Two standard deviations away from the mean indicates what in a normal distribution? | You are different from the general population. For IQ, you are retarded 70 or gifted 130. |
| What is the mean? | average |
| What is the median? | middle |
| What is the mode? | most common |
| What is a standard score? | mean=100, 50 is low |
| What is percentile? | mean=100, 50 is within normal limits |
| What is the standard deviation on a T-score? | 10 |
| What is a stanine? | Measure the variable into chunks, it is used in education going from 1-9 with low being poor and high being good |
| True or False. IQ changes over time. | False. IQ is stable over time, especially after age 15 |
| What are some examples of IQ tests. | Stanford-Binet Scales of Intelligence Detroit Tests of Learning Aptitude The Wechsler Scales |
| What are the most common projection tests? | Rorschach - 10 pictures Thematic Apperception Test – 21 cards Sentence Completion |
| What are IQ test applications? | Mental retardation Learning disabilities Intellectual giftedness |
| What does ability-achievement mean respectively? | Intelligence-academics |
| What must the discrepency be in order to be classified as learning disabled? | 15 |
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