Exam 2: Psychology As a Science

In a large correlational study, Grace finds a correlation coefficient of .15 between one pair of variables. She finds a coefficient of -.65 between two other variables. Which alternative below BEST describes these two correlations, respectively?

Without statistics, researchers would not know if their original hypotheses were valid.

Research participants are fully responsible for protecting themselves from harm or discomfort in a research study.

Why do the editors of psychology journals sometimes insist that psychologists include an estimate of effect size along with the probability statistic when they report a significant result?

Experimental group is to control group as _______ is to ________.

"The process of observation is a challenging one for psychology, given its subject matter,"offers Frederico. "That's why psychology should investigate only phenomena which are clearly observable," Grady responds. "But psychologists can use observable behavior to make reliable statements about internal processes that can't be seen," counters Holly. "Not to mention, technology continues to expand the range of psychological processes we can actually observe," Indira notes. Which of these discussants is paired with the psychological perspective they most clearly reflect?

In an industrial psychology experiment, one group of participants is exposed to heat stress; another is not. All participants' performance on a manual dexterity task is then examined. Which set below contains equivalent items?

Researcher bias is not an issue when naturalistic observation is used.

When asked to define 'popularity,' Brianna offers, "It's when everyone likes you." Chrissy suggests, "It's basically the number of friends you have." In this example, an operational definition is being offered by:

Evaluate the following statement: Animal testing has not benefited our understanding of human behavior. Is this an accurate statement? Why or why not?

Describe 3 different means by which surveys can be conducted.

What logical process starts with broad, basic principles and applies them in specific situations to prove many smaller truths?

According to your text, approximately _____% of the public supports animal research, provided that the research serves scientific purposes.

Which of the following is an example of pseudopsychology?

In which of the following alternatives is a scientific goals matched with an appropriate research method?

In a small study, a group of students in an Experimental Psychology course collected scores on two variables - Variables A and B - from five participants as follows: Participant 1: A = 3, B = 10; Participant 2: A = 3, B = 9; Participant 3: A = 8, B = 4; Participant 4: A = 6, B = 6; Participant 2: A = 10, B = 1. "The mean score on Variable A is 6, and the variables are not correlated, "Ivy notes. "The mean Variable B score is 5, and the variables are negatively correlated," John states. "No, the mean score on B is 6; but, yes, A and B are negatively correlated," Kenya remarks. "Wait. The mean score on A is 5," Lara adds. Which of these students is correct?

Define random selection.

Which of the following correlation coefficients represents the strongest relationship between two variables?

A pharmaceutical company wishes to test the efficacy of a new anti-depressant using a double-blind procedure. Which alternative CORRECTLY describes the procedure the company would use?

At Folger U., Drs. Chase and Sanborn are conducting an experiment on the effects of caffeine on memory. Participants are randomly assigned to a caffeine or a no caffeine group; their recall of items on a word list is later assessed. Which pair below correctly names and identifies the variables in this experiment?