The most useful technique to minimize the effects of experimenter bias on the outcome of an experiment is to
a. conduct a double-blind experiment.
b. discuss thoroughly the expected findings with those in charge of data collection.
c. use a variety of more subjective measuring instruments.
d. let the experimenter in charge of data collection have more leeway in choosing procedures for administering the treatments.
A
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A customer services strategy manager for a national wellbeing and fitness company is interested in assessing customer usage of their gyms across 20 sites nationally. Different gym managers have collected and analysed data from each of the sites but the resultant twenty reports showed differing p-values, some sites found a statistical significance between increased opening hours of gyms and usage and others did not. Which of the following would it be useful for her to review?
A. Levels of missing data B. Confidence intervals C. Outliers D. The Null Hypotheses
All of the answers contain true statements about standardized tests EXCEPT for one. Identify the answer that includes an INCORRECT statement.
A. They tend to focus on the "product" of reading and ignore factors that influence success or failure in literacy development. B. They are also called high-stakes tests. C. They produce scores that are often used for student promotion, graduation, and placement in specialized programs. D. They are valid progress monitoring tools to assess struggling readers across grade levels.
Federal source of funding targeted toward supporting the financial independence of families who are low income
What will be an ideal response?
When used to determine construct validity, the coefficients in the multitrait-multimethod matrix represent the correlation between ______.
a. different traits measured in the same way b. different methods measuring the same trait c. different methods used to measure different traits d. same methods used to measure the same trait