Factor analysis

[SPSSBurnd]

Dear members,

I have 20 questions (Likert 5-point), ultimately I want one variable: "affect".
So I ran a factoranalysis, which gives me 4 components (rotated Varimax).
Do I have to choose one of those components as my variable "affect", or can I combine those 4 components into one variable?

And what about my reliability analysis?

Thx

 

[Karabiner]

I have 20 questions (Likert 5-point),

Where are these questions from? What do they measure?

So I ran a factoranalysis,

How was this factor analysis performed? How large is your sample size?

Do I have to choose one of those components as my variable "affect", or can I combine those 4 components into one variable?

It depends in part on how the FA was performed and how
its results actually look like.

And what about my reliability analysis?

What do you mean by this?

With kind regards

K.