Stat and Assessment Flashcards
What is the interval measurement scale?
Assumes scores are equally distant from each other, without an absolute zero. More meaningful data and compared with more sophisticated statistics.
Example:SAT/GRE
What is the measurement scale a ratio?
No range restriction, assessed using all statistical tests and has the highest level of measurement
What is a nominal measurement scale?
Usually describes dichotomous groups, range restriction, Limited used except to discuss trends.
What measurement scale has data on a continuum like a Likert scale ?
Ordinal
What does NOIR stand for?
Nominal
Ordinal
Internal
Ratio
What is percentile?
Ranking, comparison to Norm groups.
A portion of the whole is called what?
Percentage
Scores assessed according to establish standards and not compared to others is what?
Criterion referenced
Norm referenced uses normal curve and the comparison is between test takers.
T scores, Z scores, % ranks
A standardized test
Is the same procedure each time in formal. It ensures fairness, accuracy and reliability. Example: Beck Anxiety Inventory
A test with a flexible procedure, based on a person and is less reliable and prone to bias and more reliant on administrator skill is what kind of test?
Non standardized
Appearance, attitude movement, thought process, affect, mood, perceptions, judgment or insight, intellectual functioning memory are concepts of what exam?
Mental Status Exam
Sub-Tests of the WAIS-IV are:
Vulnerable. Perceptual. Working memory. Processing speed.
Alfred Binet
Developed tests to determine school kids who need extra help. Developed 30 short tasks. Attention, memory, problem-solving skills. Tried to correlate these domains with school success. Emphasized environment and development of intellect.
Binet and Theodore Simon
Developed first IQ test. Emphasized mental age as opposed to chronological age. IQ is mental age over chronological age. Emphasized intellectual testing could be distorted and wanted mainstreaming kids with disabilities.
James cattell was who?
First United States psych professor. Believed human behavior needed quantitative evidence. Tests of memory and simple mental exercises. Coined mental test.
Concepts of eugenics, heredity in acquisition of intelligence abs 1st to employ surveys. Who am i?
Francis Galton
What are the three types of assessments?
Aptitude. Achievement. Intelligence.
What are intelligence assessments?
Measures IQ and mental ability.
WAIS, WISC, Stanford-Binet
What is an aptitude assessment?
Measures potential ability to acquire skills and knowledge.
GRE, SAT, LSAT, MCAT
An assessment that measures knowledge and skills in certain content areas is what kind of assessment?
Achievement
One standard deviation % is:
34.13%
A statistical 2 peak curve is called?
A bi-modal curve
A flatter, more spread out curve is called a:
Platykurtic distribution
A leptokurtic distribution is:
Taller and skinnier, greater peak than a normal curve.
A distribution that is _____ skewed has a lot of low scores and is asymmetrical.
Positively
What is the mean, median and mode?
Mode-occurs most frequently
Mean-average
Median-number in the middle