what is a post HOC test

examine where there are differences among 3+ groups

What is the difference between internal and external validity?

Int: shows a cause-effect relationship; Ext: generalize to other situations

What does a 'p-value' represent?

The probability that changes in the DV are due to chance

What is a null hypothesis?

It suggests there is not a relationship between variables.

What is a construct in behavioral research?

An abstract concept that is chosen to study a phenomenon

What are inferential statistics?

involves using a sample to draw conclusions about a population

What is a spurious correlation?

relationship between 2 variables that is actually caused by third variables

What is the main difference between an experiment and a correlational study?

Only an experiment can show causation

What is Quasi Experimental research?

Does not utilize random assignment in its participants

What is the Replication Crisis?

Many scientific study results are not able to be reproduced

What is the difference between within-study designs and between-subjects designs?

In within-subjects designs, participants are their own control group

What are the 4 levels of measurement?

Nominal, ordinal, interval, ratio

The purpose of random assignment to conditions is to

ensure there is an equal chance that participant characteristics distribute

What is a main effect in the context of experimental design and statistics?

The influence of a single IV on a DV, ignoring other variables

what is the difference between a type 1 and type 2 error?

type 1 rejects H0 when it is true. Type 2 fails to reject Ho when Ha true

ANOVA is conducted to test:

For mean differences between three or more groups

What is the difference between random sampling and random assignment?

R. samping takes from the population; R. assignment sorts into groups.

studbud

PSYS-284 Exam 2

22 termsStudBud Administration24 plays

Imported from external platform

Flashcards22 cardsFPractice quizPHost liveL

Questions 22

Answers

1
____ is a ratio level of measurement.
Temperature in Celsius
GPA
Height
Temperature in Fahrenheit
2
------reliability is calculated using Cronbachs alpha
test-retest
internal consistency
interrater
parallel forms
3
F statistic = variability between groups/variability within groups
False
True
4
what is a post HOC test
examine where there are differences among 3+ groups
assess if two groups are statistically different than eachother
5
What is the difference between internal and external validity?
Int: shows a cause-effect relationship; Ext: generalize to other situations
they're the same
Int: generalize to other situations; Ext: shows a cause-effect relationship
6
What does a 'p-value' represent?
The average number of positive outcomes of an experiment
The percentage of participants that were affected by the IV
The frequency of participants leaving an experiment voluntarily
The probability that changes in the DV are due to chance
7
What is a null hypothesis?
It suggests that the relationship is reliable.
It suggests that the variables have a positive relationship.
It suggests there is a relationship is objective.
It suggests there is not a relationship between variables.
8
Which of the following is an ordinal measure?
Likert scale
Gender
Height
Temperature
9
What is a construct in behavioral research?
An abstract concept that is chosen to study a phenomenon
A statistical method for data analysis
A specific, observable event or outcome
A concrete measurement tool, like a survey or test
10
What are inferential statistics?
involves using a sample to draw conclusions about a population
involves the organization, summarization, and display of data
collection of all outcomes, responses, measurements
subset of the population
11
What is a spurious correlation?
Sloppy research methods
When positive and negative variables interact
A newly discovered correlation
relationship between 2 variables that is actually caused by third variables
12
What is the main difference between an experiment and a correlational study?
Only a correlational study can manipulate the IV
Only an experiment can show causation
Only an experiment can occur in a lab
Only a correlational study can show causation
13
What is Quasi Experimental research?
Studying an animal with four legs
Exactly like correlational research
Does not utilize random assignment in its participants
Exactly like an experiment
14
What is the Replication Crisis?
Many scientific study results are not able to be reproduced
Replication papers are not being allowed to be published
People not believing in the replication of studies
None of the above
15
Which of these is a nominal variable?
Age
Occupation
Credit score
Income
16
What is the difference between within-study designs and between-subjects designs?
In within-subjects designs, participants are their own control group
Between-subjects designs have no problem with group equivalence
Between-subject designs cannot experience confounds
In within-subjects designs, participants' behavior is measured only once
17
What are the 4 levels of measurement?
Ratio, rankings
Data, statistics, population, sample
Qualitative and Quantitive
Nominal, ordinal, interval, ratio
18
The purpose of random assignment to conditions is to
combine the results of a number of similar studies.
ensure there is an equal chance that participant characteristics distribute
determine whether the dependent variable and the independent variable
determine how likely it is that the results of a treatment were chance
19
What is a main effect in the context of experimental design and statistics?
The combined impact of independent variables on a dependent variable.
The average effect size in a statistical analysis.
The influence of a single IV on a DV, ignoring other variables
None of these answers
20
what is the difference between a type 1 and type 2 error?
no difference
type 1 finds convincing evidence Ha is true when its not. Type 2 rejects Ho
type 1 rejects H0 when it is true. Type 2 fails to reject Ho when Ha true
21
ANOVA is conducted to test:
For mean differences between three or more groups
For associations between four or more variables
For mean differences between two or more groups
For associations between three or more variables
22
What is the difference between random sampling and random assignment?
R sampling sorts into groups; R. assigmnet pulls from the population.
R. assignment is the same as stratefied sampling.
R. samping takes from the population; R. assignment sorts into groups.
R. sampling places people into Control and Experimental groups.

PSYS-284 Exam 2 Flashcards | StudBud