Which type of appeals work effectively when people are not strong and the source credibility is high?

Negative appeals work effectively when people are not strong and the source credibility is high.

When the audience feels unsure or vulnerable, a warning of loss or danger from a trusted source moves them to act.

High source credibility keeps the fear believable rather than dismissed, so the negative appeal lands with force.

Informative appeals rely on neutral facts and do not hinge on this pairing of weak audience and credible fear.

Positive appeals promise gain and comfort, working through reassurance rather than the alarm that negative appeals use.

Benefit appeals highlight advantages of a product, again a reward-based route distinct from the fear-based one described here.