M1: Week 2 Flashcards
It is a condition or characteristic that varies, taking on different levels, categories, or values.
Variable
TRUE OR FALSE:
Variables can be grouped into quantitative and qualitative variables.
TRUE
Differences in the value of a variable from observation to observation.
Variability
Represent groups or categories and cannot be numerically ordered
Qualitative Variables
Measured numerically and ordered using a score
Quantitative Variables
TRUE OR FALSE:
Numerical are categorical and cannot be ordered in a meaningful way, whereas qualitative variables can be meaningfully ordered.
FALSE
NUMERICAL - can be meaningfully ordered.
QUALITATIVE - categorical and cannot be ordered in a meaningful way.
A description of a variable in observable, measurable terms.
Operational Definition
TRUE OR FALSE:
After identifying a variable and confirming its operational definition, the next important step is to measure it.
TRUE
Are often used interchangeably, but these concepts carry different meanings in research.
Reliability and Validity
The act of assigning a value or score to some behavior, event, or physiological state.
Measurement
TRUE OR FALSE:
For more well-defined variables, psychologists may use sets of questions, behavior rubrics, or physiological measures to operationalize a variable.
FALSE; for less well-defined variables
relates to the consistency of a measure
Reliability
relates to the accuracy a measure
Validity
Give the two aspects of measurement that must be considered when measuring a psychological variable
- Validity is how accurate the measures are with respect to the psychological construct.
- Reliability is how consistent the measures are.
TRUE OR FALSE:
Regardless of the type of measurement, issues of reliability and validity are not important aspects of research.
FALSE; it is important
TRUE OR FALSE:
It is critical to scientific research to determine whether the findings from previous studies hold true with different participants and sometimes with varying circumstances by repeating the survey.
TRUE
Repeating a study that has already been completed.
Replication
The efforts were made to follow the same procedures as the original research with a new group of participants.
Direct Replication
Replicating the original study and extending the findings by adding new variables to answer additional questions.
Replication with Extension
Researchers test the hypothesis from the original study using different methods.
Conceptual Replication
Also called systematic replication studies
Conceptual Replication
TRUE OR FALSE:
In Direct Replication, a similar result means consistency.
TRUE
MULTIPLE CHOICE:
Determine if the Operational Definition is Similarity or Attraction
Hypothesis: Those with similar personality traits will spend more time together.
Operational Definition: Number of Shared Personality Traits
Operational Definition of Similarity
MULTIPLE CHOICE:
Determine if the Operational Definition is Similarity or Attraction
Hypothesis: People with similar physical fitness will hold each other’s attention longer.
Operational Definition: Duration of Direct Eye Gaze
Operational Definition of Attraction
MULTIPLE CHOICE:
Determine if the Operational Definition is Similarity or Attraction
Hypothesis: A couple with similar social skills will have a healthy romantic relationship.
Operational Definition: Length of Relationship
Operational Definition of Attraction
Defines and describes the research hypothesis or question(s), along with the broad method that will be used to solve the problem.
Statement of the Problem