Plectrum is to kithara as string is to lyre.
Social learning theory is the theory<span> that insists that each of us is born without a personality and we acquire our personality as a result of social experiences. We learn our behaviors and patterns through interactions that we make and from the immediate environment that we find ourselves in. We develop this through learning and through experience.</span>
Slavery, world wars, nine eleven, Rosa parks,first landing on the moon, Leanardo da Vinci, Picasso,
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I believe the answer is: normative crisis model
The normative crisis model would see individual's psychological development in a universal manner. This model is perceived to be outdated by most experts today since it does not accounted the individual's unique experience/situation that influence their psychological maturity.