EDU210-Reliability and Validity

A common sense definition of validity refers to an instrument that:

yields consistent results

measures what it is supposed to measure

An arithmetic test is given twice within a few days to a student. The highest possible score is 40. He receives a score of 35 the first time and a score of 18 the second time. If similarly varying results are obtained with other students, the test is probably:

not sufficiently comprehensive

too difficult

unreliable

Validity and reliability are not applicable to qualitative research methods

true

false

Reliability of measurement is concerned with:

consistency

systematic errors

relevance

Which of the following questions indicates a relationship(associational research)?

What are the effects of the new reading program?

Is there a correlation between parenting style and student achievement?

To what extent is the new math curriculum being used by teachers?

What do students expect to do after high school graduation?

Which of the following is a quantitative variable?

Method of teaching mathematics

Occupation

Self-esteem

Country of birth

What descriptor would you begin with to locate references on the following research question: "What effect does the use of word processors have on the grammatical skills of high school students?"

Word processors

Language skills

High school students

"Do college students have higher self-esteem compared to high school students?"

intervention study

descriptive study

associational study

A review of the literature prior to formulating research questions allows the researcher to :

Provide an up-to-date understanding of the subject, its significance

Guide the development of research questions

Present the kinds of research methodologies used in previous studies

all of the above

In qualitative research you have larger a sample than in quantitative research: is this statement:

correct

false