You have just conducted an experiment and found that a new drug improves memory. You run the experiment again and find the same results. However, when five independent scientists run an identical experiment, they find that this new drug has no improvement on memory at all. This would suggest that your results have  _______________.

You are working for a large corporate firm conducting psychometric testing on the employees. You are using a test which includes three types of question banks: Leadership qualities, Analytic skills and Interpersonal skills. The question types are presented in a random order. In order to determine whether the psychometric test has high split-half reliability you should do which of the following?

A scientist is researching the effects of a new supplement on memory improvements. They are comparing the effects of Supplement A and Supplement B (a placebo) on memory of list words. They want to measure the difference between scores on Day 1 and Day 2. They had participants memorise a list of words and complete a recall task where they write down as many words as they can remember. One day later the participants completed the same task after taking Supplement A or Supplement B.

What is the dependent variable in this example?

I have just taken a personality trait test. The test contained five domains, one of the domains was about clothing and  how many pairs of shoes I have. This domain does not appear to actually measure personality. I am likely to think that overall this measure of personality is:

A scientist publishes a research paper with results showing that drinking a glass of milk a day for two weeks produces a significant improvement in working memory. You are interested in this finding and so you conduct an identical experiment to the original paper. This process of conducting an identical experiment is known as___________.

Which of the following is NOT a characteristic of the dependent variable

The issue of generalisng your conclusions from a single experiment to a real world situation is an issue of:

How can you increase the likelihood that your measured results reflect a true score and not error?

A scientist is trying to convince me that a study has shown that rats are less anxious after taking the drug midazolam, and therefore midazolam should be used to treat anxiety in humans. I point out that rats may not react the same way to the drug as humans. I am worried about:

Joshua has conducted a study looking at the influence of alcohol on aggression. The study only included female participants with a mean age of 20. Joshua found that alcohol did not increase aggression in this group and has concluded that there is no relationship between alcohol and aggression. This study is low in ________validity.