I didn't see significant correlation between bitcoin and other alts especially XRP in events of recent price increased. However, there is this possibiliy that it might be whales played both on alts and bitcoin at the same time. But we can easily spot significant trades related from btc to alts cause there will be huge amounts transferred in it. In addition, price in btc may be affected on or to alts, however price on both markets are not significantly correlated.