Sally selects classrooms of first graders to study the effects of teaching styles on math achievement. This is an example of ________________________.
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stratified random sampling |
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cluster sampling |
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proportional sampling |
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sampling error |
Inter-rater reliability measures consistency_________________.
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a) over time |
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b) from form to form |
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c) across different tests |
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d) from rater to rater |
Which of the following statements is a definition of sampling error?
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the difference in characteristics between the sample and the population sampled from |
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the difference in amount of people between the sample and the population sampled from |
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greatest when using simple random sampling than other sampling types |
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larger when you have a larger sample |
In which sampling technique does every kth name on the list get selected?
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simple random sampling |
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systematic sampling |
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stratified sampling |
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cluster sampling |
Dr. Baylor is concerned that the items on his test really do adequately represent the universe of items from which he chose. Dr. Baylor's concern is one of ________________________.
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a) content validity |
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b) predictive validity |
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c) concurrent validity |
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d) construct validity |
Answer :
Sally selects classrooms of first graders to study the effects of teaching styles on math achievement. This is an example of --- Cluster Sampling.
Inter-rater reliability measures consistency --- (d) from rater to rater.
the definition of sampling error --- the difference in characteristics between the sample and the population sampled from.
The sampling technique, every kth name on the list get selected --- systematic sampling.
Dr. Baylor is concerned that the items on his test really do adequately represent the universe of items from which he chose. Dr. Baylor's concern is one of --- (a) content validity.
Sally selects classrooms of first graders to study the effects of teaching styles on math achievement....
After a population of 1,000 high school seniors is divided by sex and size of school attended, the random selection of a sample to 1. represent these proportions of the population is called a. systematic sampling b. matched-pair sampling c. stratified random sampling d. cluster sampling 2. A researcher wishes to survey student apinions on a proposed increase in activity fees at her university. She decides to select a sample for telephone interviewing by selecting every 20th name in the...
True or False 1 point each) (Correct the ones that are false, carn an extra credit point for each.) The statistical method appropriate for summarizing data depends on whether the data are categorical or quantitative. Whenever a dataset contains extreme values, the mean is preferred over the median as a mcasure ot central location. 1. 2. 3. The recommended number of classes for a frequency distribution is 8. 4. A ste and leaf display can show rank order and shape...
True or False 1 point each) (Correct the ones that are false, carn an extra credit point for each.) The statistical method appropriate for summarizing data depends on whether the data are categorical or quantitative. Whenever a dataset contains extreme values, the mean is preferred over the median as a mcasure ot central location. 1. 2. 3. The recommended number of classes for a frequency distribution is 8. 4. A ste and leaf display can show rank order and shape...
sample 40 items, what would be the standard error on is normally distributed and the means 155 with a standardov oms, what would be the standard error of the sample mean duen dve moon is 155 with a standard deviation of 35, if we were .875 1.143 5.534 6.325 None of the Above in distribution? carger values of the standard deviation result in a normal curve that is a shifted to the right b. shifted to the left narrower and...
i. What is the difference between sample and population? ii. What is the difference between statistic and parameter? iii. What is the difference between descriptive statistics and statistical inference? iv. Categorical random variable contrast with numerical random variable. v. Compare discrete data from continuous data. saw. Detail the difference between nominal and ordinal scale. vii. Detail the difference between interval and ratio scale. viii. Explain the main reasons for obtaining data. ix. What is the difference between probabilistic and non-probabilistic...
TEST 1: ANSWERS INTS EACH). This section takes around 5 minutes. Name Spring 2019 8) A researcher wants to determine whether female teachers give higher or lower grades, on average, then male teachers. She picks a random sample by picking a random sample of schools, in the schools picked, picking a random sample of departments, and in the departments picked, picking a random sample of teachers. What kind of sampling was performed? d) voluntary response e) cluster b) stratified Random...
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Date 1. A national hal survey asked 207 U.s. 3rd graders what their favorite fruit is. ask a. Identify the variable, favorite pre b. Is the e. What is the implied population? aoz e variablequalitativor quantitative (circle one) 2. Categorize nominal, ordinal, interval, or ratio. these measurements associated with smartphones according to level: a....
Industrial-organizational psychologists are interested in all of the following except1. how to best diagnose clinical disorders and offer therapy to employees.2. how personality characteristics influence work behavior.3. how culture influences people's perceptions of their working environments.4. how people's work affects their home life.An organizational psychologist would be most likely concerned with1. studying the interaction between humans and technology.2. All of the these3. interviewing potential employees.4. helping people organize their schedules and daily planners.5. understanding the emotional and motivational side of...
First, read the article on "The Delphi Method for Graduate Research." ------ Article is posted below Include each of the following in your answer (if applicable – explain in a paragraph) Research problem: what do you want to solve using Delphi? Sample: who will participate and why? (answer in 5 -10 sentences) Round one questionnaire: include 5 hypothetical questions you would like to ask Discuss: what are possible outcomes of the findings from your study? Hint: this is the conclusion....