Explain how the following term threatens the validity of survey research and provide an example: Acquiescence.

Which of the following is not considered plagiarism?

Operational definitions specify what a construct means in a theoretical sense.

Three (3) different types of measurement validity were distinguished in class. Identify and define any two (2) of these and give an example of each.

A researcher observes children in a classroom during their first year of school. While observing, she scores the children on their behaviors. For instance, she assigns them scores on focus and activity level. Then, she examines whether their scores on these items accurately identify which students will be diagnosed with ADHD by the end of grade school. If the researcher’s behavioral observations accurately identify which students get diagnosed at a later point with ADHD, this means her results have what type of validity?

A researcher is studying whether a new drug effectively reduces blood pressure. To do this, he identifies 50 participants who have baseline high blood pressure. He randomly assigns 25 participants to take a pill that contains the new drug and 25 participants to take a pill that is a simple calcium supplement. The group that receives the new drug is referred to as:

Why are samples obtained from probability methods “better” than samples obtained by non-probability methods? Provide a brief example to illustrate.

What do we mean when we say a result from an empirical study is statistically significant?

This type of measurement measures perceptions.

Identify and describe one disadvantage of behavioral measurements and one disadvantage of physiological measurements.