Exam 2: The Tools of Psychological Research

Liang wants to use a measure of central tendency to summarize the final scores of his basketball team's games for the season, but wants to avoid having a few extreme scores effect the calculation.Therefore, he should avoid using the:

Kurt wants to use a measure of central tendency to summarize the final scores of his hockey team's games for the season, but wants to avoid having a few extreme scores effect the calculation.Therefore, he should use the:

The scientific method begins and ends with observation, and the same types of observations are collected in both the first and last steps.

The main advantage of a double-blind research study is that it minimizes the effect of:

The closer a correlation is to 1.00 (positive or negative), the more accurate predictions based on the correlation are likely to be.

Dr.Barant is studying reaction times and plans to define reaction time in terms of the time it takes to press a button on a display panel.Defining reaction time in this way would:

Which of the following is part of scientific method?

Professor Yang observed the following scores in her first exam (100, 93, 81, 60).The range for these scores is:

Dr.Murawski wants to determine if musical appreciation is affected by listening conditions.One group of research participants listens to music in a darkened room while another group listens in a brightly lit room.The design of this study is consistent with:

Of the following, the correlation coefficient that indicates the weakest relationship between the two variables being measured is:

Dr.Chung is watching parents interact with teachers during their end-of-quarter conferences to discuss their children's grade reports and recording the characteristics of these interactions.Which step in scientific method is this?

In an experiment, there is ____________________ if a cause-effect relationship can be determined.

Dr.Phillips predicts that if the temperature of a room is increased, then individuals are more likely to act aggressively.This suggests that Dr.Phillips believes room temperature and aggression are:

Fred's advisor noticed that he had not included the same words in each list used to test whether the color of ink affects memory.This meant the lists differed in both content and ink color.Fred won't be able to easily interpret his results because:

A researcher who stands on a street corner recording the gender of the driver of each vehicle, and whether or not the driver comes to a complete stop at the stop sign is engaged in:

The difference between the largest and smallest scores in a set of scores is:

The presence of a strong correlation allows psychologists to make accurate predictions, but it does not allow them to determine causality.

Explain what is meant by naturalistic observation, and describe two unobtrusive observational procedures.

Operational definitions define concepts in terms of the way in which the concepts will be measured.

In a single-blind study: