APPsych Vocabulary Unit 1

Double blind is an experimental procedure in which both the research participants and the research staff are ignorant about whether the research participants have received the treatment or a placebo.

• True
• False

The most frequently occurring score(s) in a distribution is the mean.

• True
• False

A case study is a research technique in which one person is studied in depth in the hope of revealing universal principles.

• True
• False

Repeating the a research study to see whether the basic finding is reliable is called observer bias.

• True
• False

A dependent variable is a testable prediction, often implied by a theory.

• True
• False

If the median and mean are to the left (negative) side of the mode in a graph of results, it means the data is positively skewed.

• True
• False

The operational definition is a statement of the procedures used to define research variables and conduct the test.

• True
• False

The outcome factor -- the variable that may change in response to manipulations of the independent variable

• random sampling
• population
• experimental group
• dependent variable

• confounding variable

This is the arithmetic average of a distribution, obtained by adding the scores and then dividing by the number of scores

• illusory correlation
• mean
• operational definition
• mode
• median

The middle score in a distribution--half the scores are above it and half are below it

• correlation
• median
• scatterplot
• mode
• mean