Research
Observers are trained to observe and record behavior as objectively and accurately as possible. They may use some equipment such as a stop watch or video recorder.
observation
It is a research method in which the investigator manipulates a variable under carefully controlled conditions and observes whether any changes occur in a second variable as a result.
experimental study
1.A ______ exists when two variables are related to each other.
Correlation
_____ is the repetition of a study to see whether the earlier results are duplicated.
Replication
The manipulation of independent variable under carefully controlled conditions to see whether any changes occur in a dependant variable.
Experimental Research
People are given a series of written questions designed to obtain information about attitudes, opinions, and specific aspects of their behavior.
questionnaire
It is a condition or event that an experimenter varies in order to see its impact on another variable.
independent variable
2. Also knows as the measures of central tendency.
mean, median and mode.
2.A ______ is the collection of subjects selected for observation in an empirical study.
sample
_____ is an unanswered question or unresolved problem in the field of study. It can also be a new idea or concept that has not been studied.
Research Gap
A face-to-face dialogue is conducted to obtain information about specific aspects of a person’s behavior.
interview
It is the variable that is thought to be affected by manipulation of the independent variable.
dependent variable
3.A _____ indicates that two variables co-vary in the opposite direction.
negative correlation
3.A ______ occurs when participants’ expectations lead them to experience some change even though they receive empty, fake, or ineffectual treatment.
Placebo-Effect
This is an in depth investigation of a single individual using direct interview, direct observation, review of records, interviews of those close to the person, and other data sources.
Case Studies
People are administered a measure to obtain a sample of their behavior. These tests are usually used before by previous researchers.
Standardized Tests
This group consists of the subjects who receive some special treatment in regard to the independent variable.
experimental group
4.The ________ is a numerical index of the degree of relationship between two variables.
correlation coefficient
4.The _____ occurs when someone’s overall evaluation of a person, object, or institution spills over to influence more specific ratings.
Halo-Effect
Type of research that uses questionnaires or interviews to gather information about specific aspects of participant's behavior, attitudes, and beliefs.
Surveys
Researcher analyzes existing institutional records (the archives), such as educational, business records, economic, medical, legal, and census.
Document Analysis
This group consists of similar subjects who do not receive the special treatment given to the other group.
controlled group
Also known as the desirable sampling method
random sampling
________ is a statistical test that compares the means of two groups to determine if the difference is statistically significant.