intro knowledge of
psychology with
complete verified
solutions 2025-2026
Aim - answer The purpose of a study
Hypothesis - answer A testable prediction that identifies the population &
the strength & direction of a relation ship between 2 variables
INCLUDE
population
-IV & DV
-testable prediction
independent variable - answer what is manipulated by the experimenter
Dependent variable - answer what is being measures
operational variable - answer a variable defined or described in terms of
the procedure used to observe & measure it
experiment - answer is when a cause & effect relationship is measured by
testing the effect of the iv on the dV
Independent group design
, (Experimental design) - answer every member of the sample is randomly
allocated to either the control or experimental group
Pros
- cost and time efficient
Cons
-there may be individual participant difference
Matched participant design
(Experimental design) - answer Participants are paired on the basis of
similar characteristics that can influence the DV.
one of the pairs go to the experimental where as the other goes to the
control
PROS
-few individual participant difference
CON
-time consuming
Repeated measures design
(Experimental design) - answer each participant is involved in the
experimental & control group
PRO
no participant difference
CON
order effect
Case study
(type of investigation) - answer indepth study on a singular or small group
application: rare or unusal conditions
PRO
very detailed
CON
psychology with
complete verified
solutions 2025-2026
Aim - answer The purpose of a study
Hypothesis - answer A testable prediction that identifies the population &
the strength & direction of a relation ship between 2 variables
INCLUDE
population
-IV & DV
-testable prediction
independent variable - answer what is manipulated by the experimenter
Dependent variable - answer what is being measures
operational variable - answer a variable defined or described in terms of
the procedure used to observe & measure it
experiment - answer is when a cause & effect relationship is measured by
testing the effect of the iv on the dV
Independent group design
, (Experimental design) - answer every member of the sample is randomly
allocated to either the control or experimental group
Pros
- cost and time efficient
Cons
-there may be individual participant difference
Matched participant design
(Experimental design) - answer Participants are paired on the basis of
similar characteristics that can influence the DV.
one of the pairs go to the experimental where as the other goes to the
control
PROS
-few individual participant difference
CON
-time consuming
Repeated measures design
(Experimental design) - answer each participant is involved in the
experimental & control group
PRO
no participant difference
CON
order effect
Case study
(type of investigation) - answer indepth study on a singular or small group
application: rare or unusal conditions
PRO
very detailed
CON
