Exam 2: Statistics in the Context of Scientific Research

Measurements that provide numerical .

Nominal measurements, which categorize the measured variable, are called.

Using involves obtaining data from oral or written interviews with people.

If it takes a person 42.21 seconds to complete a task, then the upper real limit for this score is seconds.

Which of the following is the correct order for identifying the four types of measurement scales from least to most

What are the lower and upper real limits of a score of 5 on a 7-point rating scale?

When it is either not possible or unethical to manipulate an independent variable, which research method would be optimal?

Arranging a group of people from shortest to tallest in height is an example of measurement.

A psychologist studies crime reports and city census values to determine if the amount of crime is related to population density. The research method used by this psychologist is called.

A scientific question allows an answer to be obtained by.

Classification of a measured variable into different categories is measurement.

The term empirical means.

Using involves answering scientific questions from

Damon's reaction time to a stimulus is 0.613 seconds. Reaction time is a variable.

Recording a juror's decision as either 1 for "guilty" or 2 for "not guilty" represents measurement.

A set of rating scales that are added or averaged is called a rating scale.

The 17th place finisher in a road race was wearing the number 285. The number 17 in this example represents measurement.

Given a choice, which of the following scales is preferred for measuring a variable?

A psychologist manipulates the type of instructions participants are given when performing a task. One group of participants is told their performance on a task is affected only by chance, whereas a second group of participants is told their performance on the task relates to their ability levels. The research method used by this psychologist is called.

Which of the following measurement scales has an arbitrary zero point?