Typically, how many types of evidence could a researcher choose from?

What is the appropriateness, meaningful- ness, correctness, and usefulness of the inferences a researcher makes?

Do researchers expect all variables to be equally stable?

What is a numerical index representing the degree of correspondence between scores on an instrument and a criterion measure?

What is one thing you have learned about validity?

What are the three main types of evidence typically collected?

What is the consistency of scores or answers from one administration of an instrument to another, and from one set of items to another?

What method administers the same test twice to the same group after a certain time interval has elapsed?

What is an index that shows the extent to which a measurement would vary under changed circumstances?

What is one thing you have learned about reliability?

What refers to the content and format of the instrument?

What is the process of collecting and analyzing evidence to support such inferences?

What refers to the extent to which two or more independent coders agree on the coding of the content of interest with an application of the same coding scheme?

What is symbolized by the letter r and indicates the degree of relationship that exists between the scores individuals obtain on two instruments?

Why is validity important in research?

What refers to the relationship between scores obtained using the instrument and scores obtained using one or more other instruments or measures?

What are researchers observing when they allow a time interval to elapse between administration of the instrument and obtaining the criterion scores?

What involves scoring two halves of a test separately for each person and then calculating a correlation coefficient?

What is another application of the correlation coefficient?

Why is reliability important in research?

What refers to the nature of the psychological construct or character- istic being measured by the instrument?

What is a two-way chart, with the predictor categories listed down the left-hand side of the chart and the criterion categories listed horizontally along the top of the chart?

What involves administering two different, but equivalent, forms of an instrument to the same group of individuals at the same time?

What is another way to check the internal consistency of an instrument? Calculate an...

How will you use the information from this chapter in your own research?